The 2011 Kenworth T800 is a highly regarded heavy-duty truck, a staple in the vocational and long-haul segments. Known for its robust construction and customizable configurations, it served multiple model years with its iconic rounded-hood design. Key trims often revolved around engine and chassis options, catering to diverse hauling needs. While specific trims varied, pricing for a new 2011 T800 would have been substantial, reflecting its professional-grade build. It remains popular for its legendary durability and versatility, making it a trusted workhorse in demanding industries.
The Good
The 2011 Kenworth T800 excels in raw performance and unwavering reliability, assuring drivers of its capability. Its comfortable cabin, designed for long hours, offers a sense of security and pride of ownership, appealing to both practical needs and the emotional connection drivers have with their trucks.
The Bad
While generally robust, potential owners of a 2011 Kenworth T800 should watch for age-related wear on components like suspension and exhaust systems. Electrical gremlins, particularly with older wiring harnesses, can sometimes arise. Thorough inspection of the drivetrain and chassis is always recommended.
2011 Kenworth T800: Quick Overview
- Engine Options: The 2011 Kenworth T800 offered a wide array of powerful diesel engines, primarily from PACCAR (Kenworth's parent company) and Cummins. Common options included:
- PACCAR MX (various displacements)
- Cummins ISX (e.g., ISX15)
- Cummins ISM
- Cummins ISL
- Horsepower: Horsepower ratings typically ranged from approximately 380 hp to over 600 hp, depending on the specific engine model and configuration chosen. High-torque engines were common for heavy-duty applications.
- Fuel Economy: Fuel economy is highly variable for heavy-duty trucks like the T800 and depends heavily on the engine, transmission, gearing, load, driving style, and operating conditions. However, generally, MPG figures would be in the 5-8 MPG range for highway operations, and lower for vocational use.
- 0-60 Times: 0-60 mph times are not a primary metric for this class of vehicle. When fully loaded, acceleration is gradual and focused on maintaining speed and torque, not rapid acceleration.
- Towing Capacity: The towing capacity of a 2011 Kenworth T800 is exceptionally high and is determined by its Gross Combination Weight Rating (GCWR), which can exceed 100,000 lbs (45,000 kg) and often much higher depending on the specific configuration, chassis, and axle setup. This truck is designed for heavy hauling, including tractor-trailer configurations, tankers, and heavy equipment transport.
- Trim-Level Features: The concept of "trims" in a vocational truck like the T800 is less about standard packages and more about customizable options tailored to the owner's needs. Key areas for customization included:
- Cab Configurations: Day cabs, flat tops, extended day cabs, and various sleeper configurations (e.g., 42-inch, 60-inch, 72-inch).
- Suspension: Various heavy-duty suspension systems (e.g., PACCAR Air, Kenworth Glide Air, TufTrac).
- Axles: Single, tandem, or tridem drive axles with different ratios.
- Braking Systems: Air brakes with ABS were standard.
- Interior Options: While utilitarian, higher-spec interiors could include enhanced seating, improved insulation for noise reduction, and premium material options.
- Powertrain: Transmission options included manual (e.g., Fuller) and automatic transmissions (e.g., Eaton Allison).
- Chassis Options: Various frame rail thicknesses and configurations for specialized vocational applications (e.g., dump trucks, cement mixers, wreckers).
2011 Kenworth T800 Specifications
Vehicle Information
| Year | 2011 |
| Make | Kenworth |
| Model | T800 |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | - |
Manufacturing Details
| Made In | Mexico |
| Manufacturing City | MEXICALI |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 57000 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 15L I6 |
| Engine Size | 15L |
| Engine Cylinders | 6 |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| Drivetrain | 6x4 |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
Vehicle History Report
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Analysis
What Problems Does the 2011 Kenworth T800 Have?
The 2011 Kenworth T800 is generally recognized for its robust build quality and long-term reliability, a hallmark of Kenworth trucks. However, like any heavy-duty vehicle, certain issues can arise, especially as they age. Frequently reported concerns, though not necessarily widespread for the 2011 model year specifically but common across trucks of this vintage, often relate to:
Electrical System: Older trucks can sometimes experience issues with wiring harnesses, connectors, and sensors, leading to intermittent faults or warning lights. Corrosion in connectors, especially in harsh environments, can also be a problem. This can manifest as issues with the engine control module (ECM), transmission control module (TCM), or lighting systems.
Emissions Systems (for trucks equipped with them): For models manufactured around 2011, emissions control systems, particularly Diesel Particulate Filters (DPFs) and Selective Catalytic Reduction (SCR) systems, could be a source of concern. Issues like DPF regeneration failures, sensor malfunctions, or the need for frequent cleaning or replacement of DPFs were more common in the earlier stages of these technologies. While Kenworth's systems were generally well-regarded, complexity can lead to potential problems.
Wear and Tear on Major Components: As a 2011 model, many T800s will have accumulated significant mileage. This means that components like the clutch, transmission, differential, suspension bushings, and brake systems will naturally show wear. Premature failure of these parts can occur if maintenance has been neglected or if the truck has been subjected to extreme duty cycles.
Cooling System: Over time, radiators can develop leaks, hoses can crack, and water pumps can fail. Overheating issues could arise if the cooling system is not properly maintained.
Fuel System: While less common with quality engines like Cummins or PACCAR, fuel injectors or lift pumps can eventually require attention, especially with the use of lower quality fuel or insufficient fuel filtration.
Recalls: Specific recalls for the 2011 Kenworth T800 would need to be checked against official NHTSA databases using the VIN. However, general recalls that might affect this model year could involve braking system components, steering linkage, or certain engine-related electrical connectors, often related to supplier parts.
Long-Term Reliability: The T800's reputation for long-term reliability is built on its heavy-duty frame, robust drivetrain options, and the quality of its core components. Trucks that have been meticulously maintained, with regular oil changes, filter replacements, and proactive inspections, are likely to continue performing well for many years and hundreds of thousands of miles beyond 2011.
How long will the 2011 Kenworth T800 last?
A well-maintained 2011 Kenworth T800 can easily achieve over 1,000,000 miles, with many units seeing service for 15-20 years or more. The core chassis and drivetrain are built for extreme longevity. Durability is a primary strength; engines, transmissions, and frames are designed to withstand rigorous use. However, over time, weaknesses typically emerge in areas subject to constant stress and environmental exposure. These include suspension components (bushings, kingpins), exhaust systems (corrosion, leaks), and electrical connectors which can degrade, especially in coastal or harsh climate regions. Routine maintenance is paramount; a neglectful owner might see issues arise much sooner, impacting the truck's operational lifespan.
What Technology & Safety Features are Included?
The 2011 Kenworth T800, being a commercial heavy-duty truck, prioritizes functionality, driver comfort for long hauls, and safety over advanced infotainment or cutting-edge driver-assistance features commonly found in passenger vehicles. The technology present is largely focused on operational efficiency and safety:
Built-in Tech: The core technology revolved around the engine and transmission control modules, providing diagnostics and performance monitoring. A standard digital dashboard displayed essential information like speed, RPM, fuel level, oil pressure, and engine warnings. Optional features could include advanced telematics for fleet management, allowing for tracking, diagnostics reporting, and driver behavior monitoring.
Entertainment: Entertainment options were typically basic. A standard AM/FM radio was common, with optional upgrades to include CD players or even satellite radio capability. Bluetooth connectivity for hands-free calling was not standard in 2011 but could be an aftermarket addition or part of a higher-spec factory option for some models.
Driver-Assistance Features: Advanced driver-assistance systems (ADAS) were not prevalent on the 2011 T800. Features like adaptive cruise control, lane departure warning, or automatic emergency braking were generally not offered. The primary focus was on manual control and driver awareness. Some trucks might have been optioned with features like a backup camera for improved visibility when maneuvering in tight spaces, especially in vocational applications.
Safety Features: Safety was paramount, with robust construction being the primary safety feature. Standard safety equipment included:
- Air brakes with ABS (Anti-lock Braking System) were standard, crucial for controlling a heavy vehicle.
- Three-point seat belts were standard.
- Powerful headlights and multiple mirrors for maximum visibility.
- Optional features could include fog lights and enhanced interior lighting.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
2011 Kenworth T800 Prices and Market Value
When new, a 2011 Kenworth T800 could range significantly in price depending on its configuration, engine, and options, typically starting from around $100,000 and easily exceeding $200,000 for highly specialized or premium sleeper models. The depreciation curve for heavy-duty trucks is different from passenger cars; they retain value much better due to their durability and specialized purpose. As of late 2023/early 2024, used 2011 Kenworth T800 models can be found anywhere from $30,000 to $80,000+, heavily influenced by mileage, condition, engine hours, maintenance history, and specific vocational application (e.g., a well-maintained highway tractor vs. a worn-out dump truck). Factors affecting resale value include engine manufacturer (Cummins often holds value well), transmission type, frame condition, and overall cosmetic appeal.
2011 Kenworth T800 Cost of Ownership
Owning a 2011 Kenworth T800 is a significant investment, not typically economical in the same vein as a light-duty vehicle. Insurance costs will be substantial, reflecting its value and operational risk. Fuel is a major expense, with consumption heavily dependent on the engine and usage, but expect to spend considerably on diesel. Maintenance and repair are critical and can be costly, though proactive care minimizes major breakdowns. Parts can be expensive, and specialized technicians are required. Overall, it's a costly vehicle to own and operate, but its durability and earning potential often justify the expense for commercial operators.
2011 Kenworth T800 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2011 Kenworth T800 Recalls & Defects
Exterior Lighting
Recall date
2010-09-29
Recall no.
10v452000
Source
NHTSA
Summary
Kenworth IS Recalling Certain Model Year 2011 T660, T800, W900, C500, T440, and T470 Vehicles Manufactured From April 1, 2009, Through August 30, 2010. ONE OF THE Four Harness Spade Terminal Connections TO THE Chassis Load Center MAY Become Completely Unseated. A Completely Unseated Connection MAY Result IN A Power Loss TO A Portion OF THE Vehicle's Exterior Lighting.
Consequence
Power Loss OF THE Vehicle's Exterior Lighting MAY Reduce THE Visibility OF THE Vehicle TO Other Drivers Increasing THE Risk OF A Crash With THE Vehicle.
Remedy
Dealers Will Inspect THE Harness and Re-Seating THE Female Connectors ON THE Male Spade Terminals. This Service Will BE Performed Free OF Charge. THE Safety Recall Began ON October 29, 2010. Owners MAY Contact Kenworth AT 1-425-828-5440.
Notes
Paccar Safety Recall NO. 10kwg. Owners MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .
Engine and Engine Cooling:exhaust System:emission Control:gas Recirculation Valve (Egr Valve)
Recall date
2010-10-01
Recall no.
10v453000
Source
NHTSA
Summary
Paccar IS Recalling Certain Model Year Kenworth and Peterbilt Vehicles. A Manufacturing Defect IN THE Seal Supplied BY A Component Manufacturer Installed ON THE Output Shaft OF THE Exhaust GAS Recirculation (Egr) Valve Actuator MAY Cause Eventual Delamination OF THE Seal. Delamination OF THE Seal MAY Allow Engine OIL TO Leak From THE EGR Valve Onto Exhaust Components.
Consequence
THE Leaking OF Engine OIL Onto HOT Exhaust Components, Such AS When THE Engine IS Under Significant Load, MAY Create THE Possibility OF A Fire.
Remedy
Dealers Will Replace THE EGR Valve Assembly ON THE Subject Vehicles Equipped With THE Paccar MX Engine. This Service Will BE Performed Free OF Charge. THE Safety Recall Began ON October 29, 2010. Owners MAY Contact Kenworth AT 425-828-5440 and Peterbilt AT 940-591-4196.
Notes
Paccar Safety Recall NO. E008r.owners MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .
Service Brakes, Air:disc:caliper
Recall date
2010-10-27
Recall no.
10v535000
Source
NHTSA
Summary
Paccar IS Recalling Certain Model Year Kenworth T660, T700, T800 and W900 Vehicles Manufactured From December 22, 2008, Through August 2, 2010, and Equipped With Ag400l AIR Disc Brakes. THE AIR Disc Brake Caliper Could BE Installed ON THE Wrong Side OF THE Drive Axle Potentially Causing Interference With THE Suspension Bracket and THE Rear Suspension AS THE Outermost Brake Pads Wear and THE Floating Caliper Moves Inboard.
Consequence
AS This Interference Gets Larger, This Could Eventually Lead TO Reduced Braking Performance, Increasing THE Risk OF A Crash.
Remedy
Dealers Will Verify THE Correct Orientation OF THE Brake Caliper and Perform THE Necessary Repair Free OF Charge. THE Safety Recall Began ON November 24, 2010. Owners MAY Contact Kenworth AT 425-828-5440.
Notes
Kenworth Safety Recall NO. 10kwh.owners MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .
Equipment:other:labels
Recall date
2010-11-24
Recall no.
10v601000
Source
NHTSA
Summary
Paccar IS Recalling Certain Model Year Kenworth T660 and T800 Vehicles Manufactured From September 13, 2010, Through November 19, 2010, FOR Failing TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard NO. Part 567, "certification." THE Steer Axle Gawr and Gvwr Recorded ON THE Vehicle's Door Labels MAY BE Inaccurate and Overstate THE Actual Load Capacity OF Components Installed ON THE Vehicle.
Consequence
This MAY Lead TO AN Owner Overloading THE Vehicle Which CAN Increase THE Risk OF A Tire Failure and Crash.
Remedy
Dealers Will Inspect and Replace THE Door Labels Free OF Charge. THE Safety Recall Began ON December 17, 2010. Owners MAY Contact Kenworth AT 425-828-5440.
Notes
Kenworth Safety Recall NO. 10kwj.owners MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .
Service Brakes, AIR
Recall date
2010-05-10
Recall no.
10v211000
Source
NHTSA
Summary
Kenworth IS Recalling Certain Model Year 2011 T270, T370, and T800 Trucks Manufactured From January 28 Through March 19, 2010, Equipped With Dv-2 AIR Governor Containing Part Number G90-1070-2111111 ON THE T270/370 Model Trucks and Part Number G90-1070-11113111 ON THE T800 Model Trucks. THE Dv-2 AIR Governor WAS Misassembled With A Blank Plug Instead OF A Breather. Without THE Breather Installed, THE AIR Governor MAY NOT BE Able TO Detect THE Loss OF AIR Pressure IN THE AIR System During Normal Use. This Condition MAY Result IN THE Slow Activation OF THE Emergency Spring Brakes.
Consequence
Although THE Operator IS Warned OF Low AIR Pressure BY Audible and Visual Low AIR Pressure Warning Alarms, A Vehicle Crash or Fire IS Possible IF These Warnings ARE NOT Heeded.
Remedy
Kenworth Will Notify Owners and Repair THE Vehicles BY Replacing THE Blank Plug With A Breather and Inspect FOR Proper Function Free OF Charge. THE Safety Recall Began ON June 10, 2010. Owners MAY Contact Kenworth AT 1-425-828-5440.
Notes
Kenworth's Campaign Number IS 10kwd.owners MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .
Electrical System:software
Recall date
2011-07-21
Recall no.
11v380000
Source
NHTSA
Summary
Paccar IS Recalling Certain Model Year 2011-2012 Kenworth T660, T700, and T800 Vehicles Manufactured From April 19, 2010, Through MAY 13, 2011, and Model Year 2008, 2010, and 2011 Peterbilt 365, 367, 384, 386, 387, 388 and 587 Vehicles Manufactured From April 20, 2010, Through June 11, 2011, and Equipped With Paccar MX Engines and Eaton Ultrashift DM or Allison Automatic Transmissions (Without Auto-Neutral). THE Fast Idle Control MAY BE Activated BY THE Operator While THE Transmission IS IN Gear.
Consequence
IF THE Fast Idle Control Function IS Engaged With THE Transmission IN Gear, THE Vehicle Could Unexpectedly Accelerate and Override THE Parking Brake and , Creating A Risk OF A Crash and Damage TO Other Vehicles or Property and THE Potential FOR Injury TO Nearby Pedestrians.
Remedy
Kenworth and Peterbilt Dealers Will Update THE Engine Software FOR THE Affected Chassis. This Service Will BE Performed Free OF Charge. THE Safety Recall Began ON August 22, 2011. Owners MAY Contact Kenworth AT 1-425-828-5440 and Peterbilt AT 1-940-591-4196.
Notes
Kenworth and Peterbilt Safety Recall NO. E038r.owners MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .
Fuel System, Other:storage:tank Assembly
Recall date
2011-02-23
Recall no.
11v127000
Source
NHTSA
Summary
Paccar IS Recalling Certain Model Year 2008-2012 Kenworth T2000, T660, T700, T800, and W900, AS Well AS Model Year 2009-2012 Peterbilt 365, 367, 384, 386, 387, 388, 389, and 587 Trucks Equipped With Paccar MX Engines. THE OIL Module Centrifugal Spinner Filter CAP IN THE Paccar MX Engine MAY Become Loose, Possibly Allowing THE CAP TO Come OFF and Engine OIL TO Partially Discharge From THE OIL Module Onto Exhaust Components.
Consequence
THE Discharge OF Engine OIL Onto Exhaust Components Which ARE Hot, Such AS When THE Engine IS Under Significant Load, MAY Cause A Fire.
Remedy
Dealers Will Re-Torque THE OIL Module Filter CAP and Install A Secondary Retention Device ON THE Secondary Centrifugal Spinner Filter Cap. This Service Will BE Performed Free OF Charge. THE Safety Recall IS Expected TO Begin During March 2011. Owners MAY Contact Kenworth AT 1-425-828-5440 and Peterbilt AT 1-940-591-4196.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .
Service Brakes, Air:slack Adjusters
Recall date
2011-03-07
Recall no.
11v157000
Source
NHTSA
Summary
Paccar IS Recalling Certain Model Year 2011-2012 Kenworth T270/370, T440/T470, T800, T660, W900 and C500 Vehicles Manufactured Between October 18, 2010, and January 28, 2011. Certain Cast Iron Slack Adjuster Housings, Which Transmit Braking Force From THE Brake Chamber Push ROD TO THE Brake CAM Tube, MAY Include A Flow Notch IN THE Handle Portion OF THE Housing DUE TO AN Error During THE Casting Process. A Flow Notch IN THE Handle Portion MAY Reduce THE Effective Cross Section Structure and Cause THE Slack Adjuster Housing TO Fracture.
Consequence
IF THE Slack Adjuster Housing Were TO Fracture, THE Wheel Brake TO Which THE Slack Adjuster Housing IS Attached Would NO Longer Function, Which Could Increase Vehicle Stopping Distances, and IF Mounted ON THE Steer Axle, Could Cause THE Vehicle TO Pull TO ONE Side During Braking, Increasing THE Risk OF A Crash.
Remedy
Dealers Will Inspect and Replace THE Slack Adjuster Housing AS Necessary. This Service Will BE Performed Free OF Charge. THE Safety Recall Began ON March 30, 2011. Owners MAY Contact Kenworth AT 425-828-5440.
Notes
Kenworth Safety Recall. No.11kwa.owners MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO <A Href=http://Www.safercar.gov>http://www.safercar.gov</a> .
Service Brakes
Recall date
2013-11-18
Recall no.
13v573000
Source
NHTSA
Summary
Paccar IS Recalling Certain Model Year 2007-2014 Kenworth T800 and W900 Trucks Manufactured March 22, 2006, Through July 15, 2013 and Equipped With Primaax Tridem Rear Suspensions and A Pusher And/Or TAG Axle. THE Affected Trucks Have Brake Chambers That Take Longer TO Apply or Release THE Brakes Than THE Required Time Limit. Thus, These Vehicles Fail TO Conform TO THE Requirements OF Federal Motor Vehicle Safety Standard (Fmvss) NO. 121, "air Brake Systems."
Consequence
Brakes That Take Longer TO Apply MAY Lengthen THE Distance Needed TO Stop THE Truck, Increasing THE Risk OF A Crash.
Remedy
Paccar Will Notify Owners, and Dealers Will Modify THE AIR Brake System, Free OF Charge. THE Recall Began ON January 15, 2014. Owners MAY Contact Paccar AT 1-425-468-7400. Kenworth's Recall Number IS 13kwl.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Engine and Engine Cooling:engine
Recall date
2015-05-26
Recall no.
15v309000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain Model Year 2010-2016 Kenworth T440, T800, and W900 Trucks Manufactured August 31, 2009, TO April 20, 2015, and 2008-2015 Peterbilt 320, 337, 348, 365, 382, and 384 Trucks Manufactured July 27, 2007, TO April 28, 2015, and Equipped With Certain Cummins Westport ISL G Engines. Excessive Engine Crankcase Pressures MAY Cause THE 90-degree Elbow OF THE Vent Tube Assembly TO Detach From THE Crankcase Ventilation Breather, Possibly Allowing Engine OIL TO Come Into Contact With HOT Surfaces.
Consequence
IF Engine OIL Comes Into Contact With A HOT Surface, There IS AN Increased Risk OF A Fire.
Remedy
Cummins Will Notify Owners ON Behalf OF Paccar, and Cummins Service Centers Will Administer THE Repairs Which Include Securing THE Ends OF THE 90-Degree Elbow and Reprogramming THE Electronic Control Module (Ecm) With Software That CAN Adjust THE Engine Output Under Misfire Conditions TO Limit Crankcase Pressures. These Repairs Will BE Performed Free OF Charge. THE Recall Began ON June 12, 2015. Owners MAY Contact Kenworth Customer Service AT 1-425-828-5000, Peterbilt Customer Service AT 1-940-591-4000 or Cummins Inc. AT 1-800-343-7357. Paccar's Number FOR This Recall IS 15kwh and 515-g.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Visibility:windshield Wiper/Washer:motor
Recall date
2015-05-08
Recall no.
15v271000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain Model Year 2011-2016 Kenworth T270, T370, T440, T470, C500, C540, C550, T660, T800, W900, and 963 Trucks Manufactured November 1, 2010, TO April 6, 2015. IN THE Affected Trucks, Water MAY Leak Into THE Wiper Motor.
Consequence
AS Water Leaks IN, THE Wiper MAY Cease TO Function ON THE 'intermittent' Setting, Reducing THE Driver's Visibility and Increasing THE Risk OF A Crash. Additionally, THE Water MAY Cause Corrosion Which, Over Time, MAY Result IN AN Electrical Short, Increasing THE Risk OF A Fire.
Remedy
Paccar IS Still Developing and Testing A Remedy. THE Recall IS Expected TO Begin IN July 2015. AN Interim Letter WAS Sent TO Owners ON July 2, 2015. THE Recall Began ON September 2, 1015. Owners MAY Contact Kenworth Customer Service AT 1-425-828-5000. Paccar's Number FOR This Recall IS 15kwf.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Electronic Stability Control (Esc)
Recall date
2020-04-06
Recall no.
20v199000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain 2008-2019 Peterbilt 330, 335, 337, 340, 348, 365, 367, 384, 386, 387, 388, 389, 567, 579 and 587 Vehicles and 2008-2020 Kenworth T170, T270, T370, T660, T680, T800, T880, and W900 Vehicles Equipped With Namux Software. IN THE Event That THE Anti-lock Brake System (Abs) Loses Battery And/Or Ignition Power TO THE Controller, THE Dash Warning Light FOR THE ABS MAY NOT Illuminate TO Warn THE Driver OF THE Loss OF Abs. AS Such, These Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard (fmvss) Number 121, "air Brake Systems," and 136, "electronic Stability Control System ON Heavy Vehicles."
Consequence
IF THE Driver Unknowingly Operates THE Vehicle Without THE ABS Functioning, There Would BE AN Increased Risk OF A Crash.
Remedy
Paccar Will Notify Owners, and Dealers Will Update THE Namux Software Within THE Cab Control Module, Free OF Charge. Paccar Issued Owners AN Interim Notification ON June 4, 2020. THE Recall Began MAY 26, 2020. Owners MAY Contact Kenworth Customer Service AT 1-425-828-5888 or Peterbilt Customer Service AT 1-940-591-4220. Paccar's Number FOR This Recall IS 20pbc and 20kwb.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Service Brakes, Air:antilock:abs Warning Light
Recall date
2020-04-06
Recall no.
20v199000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain 2008-2019 Peterbilt 330, 335, 337, 340, 348, 365, 367, 384, 386, 387, 388, 389, 567, 579 and 587 Vehicles and 2008-2020 Kenworth T170, T270, T370, T660, T680, T800, T880, and W900 Vehicles Equipped With Namux Software. IN THE Event That THE Anti-lock Brake System (Abs) Loses Battery And/Or Ignition Power TO THE Controller, THE Dash Warning Light FOR THE ABS MAY NOT Illuminate TO Warn THE Driver OF THE Loss OF Abs. AS Such, These Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard (fmvss) Number 121, "air Brake Systems," and 136, "electronic Stability Control System ON Heavy Vehicles."
Consequence
IF THE Driver Unknowingly Operates THE Vehicle Without THE ABS Functioning, There Would BE AN Increased Risk OF A Crash.
Remedy
Paccar Will Notify Owners, and Dealers Will Update THE Namux Software Within THE Cab Control Module, Free OF Charge. Paccar Issued Owners AN Interim Notification ON June 4, 2020. THE Recall Began MAY 26, 2020. Owners MAY Contact Kenworth Customer Service AT 1-425-828-5888 or Peterbilt Customer Service AT 1-940-591-4220. Paccar's Number FOR This Recall IS 20pbc and 20kwb.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Service Brakes, Air:supply:reservoir/Tank
Recall date
2024-02-23
Recall no.
24v145000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain 2009-2021 Kenworth C500, 2012-2021 Kenworth T440, 2009-2015 Kenworth T660, 2015-2024 Kenworth T680, 2009-2024 Kenworth T800, 2009-2020 Kenworth T370, 2014-2023 Kenworth T880, 2011-2016 Kenworth T470, 2023 Kenworth T480, and 2009-2019 Kenworth W900 Vehicles. THE AIR Tanks Have AN Insufficient Volume OF AIR FOR THE Brake System. AS Such, These Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard Number 121, "air Brake Systems."
Consequence
Insufficient AIR Volume CAN Reduce Braking Performance and Increase THE Risk OF A Crash.
Remedy
Dealers Will Install THE Correct Volume AIR Tanks, Free OF Charge. Owner Notification Letters Were Mailed August 12, 2024. Additional Owner Notification Letters Were Mailed October 27, 2025. Owners MAY Contact Paccar Customer Service AT 1-425-828-5888. Paccar's Number FOR This Recall IS 24kwd.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.nhtsa.gov.
2011 Kenworth T800 Warranty
Basic
Original warranty
0 months / No data
Estimated remaining
Expired
Powertrain
Original warranty
0 months / No data
Estimated remaining
Expired
Rust
Original warranty
0 months / No data
Estimated remaining
Expired
2011 Kenworth T800 Insurance
Insurance for a 2011 Kenworth T800 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2011 Kenworth T800 Compare to Other Truck?
The 2011 Kenworth T800 competes in the demanding heavy-duty vocational and long-haul truck market against formidable rivals such as Peterbilt (often sharing PACCAR platforms), Freightliner (e.g., Coronado, Argosy), International (e.g., ProStar), and Mack trucks.
Performance: The T800 consistently delivers strong performance due to its powerful engine options (Cummins, PACCAR) and robust drivetrain. Its performance is matched or exceeded by comparable models from Peterbilt, which often share powertrains and chassis components. Freightliner and International offer competitive engines and performance, though Kenworth and Peterbilt are often perceived to have a slight edge in outright torque and tractive power for the most demanding applications.
Features: In 2011, features in this class were utilitarian. Kenworth and Peterbilt cabs were known for their driver-centric design and comfort, often having an edge in build quality and refinement over some International or Freightliner models of the era. While all offered various cab configurations and powertrain choices, the T800's strength was in its modularity and ability to be spec'd for virtually any job. Advanced tech features were limited across the board for this model year.
Reliability: Kenworth has a legendary reputation for reliability, and the T800 is a prime example. It's often considered more reliable and durable in the long run than many competitors, particularly Freightliner and International, which, while capable, sometimes faced more consistent issues with electrical systems or emissions components in this period. Mack trucks are also known for their ruggedness, especially in vocational applications, making them a strong alternative.
Price: New prices were generally comparable across the premium brands like Kenworth and Peterbilt, often positioning them at a higher price point than Freightliner or International. Used prices for a 2011 T800 reflect its strong residual value due to its reputation.
Recommendations:
Similar Alternatives: A 2011 Peterbilt 389 or 388 would be a very similar alternative, often built on the same PACCAR chassis and offering comparable performance and reliability. A 2011 Mack Anthem or Pinnacle would also be a strong contender, especially for vocational use, known for their robust construction.
Potentially Better Alternatives (depending on need): For pure vocational robustness and durability, a 2011 Mack Granite could be considered superior for extreme off-road or heavy-duty construction. For those prioritizing a slightly more modern cab design and potentially better fuel efficiency (though still highly variable), a later model year Freightliner Coronado or International ProStar might be considered, but reliability might be a slight trade-off compared to the T800.
Final Verdict: Is the 2011 Kenworth T800 a Good Truck?
The 2011 Kenworth T800 is ideal for owner-operators and fleet managers seeking a dependable, workhorse truck built for demanding vocational or long-haul applications. It is absolutely worth buying, especially on the used market, provided it has been well-maintained. Buying used is the only realistic option now. It is best suited for those prioritizing longevity, durability, and customizable configurations over cutting-edge technology or creature comforts. Thorough inspection of mileage, maintenance records, and core components is crucial. Trims configured for specific duties (e.g., highway tractor with a large sleeper, or a robust chassis for a dump body) will hold value and perform best in their intended roles.
Cathleen V
Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.