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2012 Kenworth T800 Overview, Reviews, Ratings & Specs

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Simon A | March 25, 2026
The 2012 Kenworth T800 is a highly reputable Class 8 vocational truck, renowned for its versatility and durability. Primarily offered as a conventional truck, it has been a staple in the Kenworth lineup for many years, with the T800 generation spanning from the late 1980s through recent models, signifying its enduring appeal. Key trims often revolved around specific vocational applications like dump trucks, cement mixers, and heavy haulers. While exact pricing varies significantly based on configuration and options, new models historically ranged from $100,000 to over $200,000. Its popularity stems from its robust construction, driver-focused cabin, and ability to be customized for a wide array of demanding tasks, making it a go-to choice for businesses prioritizing longevity and performance.
The Good

The 2012 Kenworth T800 excels with its robust performance for tough jobs, legendary reliability for peace of mind, and surprisingly comfortable, driver-centric cab. Its iconic, durable design and proven value make it a smart, long-term investment for owner-operators and fleets alike.

The Bad

Potential buyers of a 2012 Kenworth T800 should be aware of common issues like potential electrical gremlins, particularly with older wiring harnesses. Older models may also exhibit wear and tear on suspension components and the clutch, necessitating thorough pre-purchase inspections. Fuel efficiency, while respectable for its class, is not its strongest suit compared to newer, more aerodynamic designs.

2012 Kenworth T800: Quick Overview

Key specifications for the 2012 Kenworth T800 are highly configurable, reflecting its vocational nature.

  • Engine Options: Typically powered by PACCAR's renowned engines, including the MX-13 and various Cummins ISX series engines. Other options like the Detroit DD15 were also available depending on specific configurations and customer preferences.
  • Horsepower: Engine options generally ranged from approximately 380 horsepower up to 600+ horsepower, catering to different power demands and vocational needs.
  • Fuel Economy: Fuel economy is highly variable, dependent on engine choice, transmission, axle ratios, driving style, and load. For a Class 8 truck of this era, typical figures would be in the range of 5-7 miles per gallon (MPG).
  • 0-60 Times: As a heavy-duty vocational truck, 0-60 mph times are not a primary performance metric and are largely irrelevant. Acceleration is focused on torque and load-carrying capability, not speed.
  • Towing Capacity: The towing capacity is substantial and depends heavily on the specific configuration, chassis, axle ratings, and fifth-wheel rating. T800s are designed for heavy hauling, with Gross Combination Weights (GCW) often exceeding 100,000 lbs and sometimes reaching up to 200,000+ lbs for specialized heavy haul applications.
  • Trim-Level Features: Trims were less about luxury and more about vocational application. Common features included robust frame rails, heavy-duty axles, various wheelbase options, and specialized suspensions (e.g., multi-leaf spring, air ride). Cab options included the traditional T800 aerodyne, flat top, and day cabs. Interior features focused on functionality and driver comfort for long hours, with options for upgraded seats, enhanced climate control, and basic infotainment systems. Many T800s were built-to-order, meaning features were tailored to the specific job, such as reinforced bumpers for off-road use or specialized PTO (Power Take-Off) systems for vocational equipment.

2012 Kenworth T800 Specifications

Vehicle Information
Year 2012
Make Kenworth
Model T800
Trim -
Style -
Type Truck
Category Tractor
Manufacturing Details
Made In Mexico
Manufacturing City CHILLICOTHE
Dimensions
Doors -
Curb Weight -
Gross Vehicle Weight Rating -
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine 14.9L I6
Engine Size 14.9L
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 -

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Analysis

What Problems Does the 2012 Kenworth T800 Have?

The 2012 Kenworth T800 is generally recognized for its robust build and long-term reliability, a hallmark of Kenworth trucks. However, like any heavy-duty vehicle, certain issues can arise over time and with mileage.

Frequently reported concerns often revolve around the powertrain and its associated components. For this model year, owners have sometimes reported issues with diesel particulate filters (DPFs) requiring regeneration or cleaning more frequently, especially if the truck is used for a lot of short-haul or stop-and-go driving. Exhaust gas recirculation (EGR) systems can also be a source of problems, leading to reduced power and increased emissions if they become clogged or malfunction.

Electrical issues are another area where owners might encounter problems. While not specific to the 2012 model year, older trucks can experience issues with wiring harnesses becoming brittle or connections corroding over time, leading to intermittent faults in various systems like lighting, gauges, or engine controls. The complex electronic control modules (ECMs) can also be a point of failure, though this is less common.

Suspension components, such as leaf springs, bushings, and shock absorbers, can wear out over time due to the demanding nature of vocational applications and heavy loads. Premature wear on these parts could lead to a rougher ride and affect handling. The clutch and transmission, particularly in manual transmission models, will naturally experience wear with high mileage and demanding use, requiring eventual replacement.

Recalls for the 2012 Kenworth T800 are typically managed by PACCAR, Kenworth's parent company. These recalls are usually related to specific component failures or safety concerns identified during manufacturing or by fleet operators. Common recall areas might include braking system components, steering linkages, or certain engine or transmission parts. Owners should always check the NHTSA website or contact a Kenworth dealer with their VIN to determine if any recalls apply to their specific vehicle.

Long-term reliability is generally excellent if the T800 is properly maintained with regular oil changes, filter replacements, and component inspections. Neglecting preventative maintenance is the quickest way to exacerbate potential issues and reduce the overall lifespan and reliability of the vehicle. The core chassis and frame are incredibly durable, but auxiliary systems and wear items will require attention as the miles accumulate.

How long will the 2012 Kenworth T800 last?

A 2012 Kenworth T800, when properly maintained, is built for longevity and can easily serve for 1.5 million to 2 million miles, or even more, with diligent care. Average annual mileage for a truck of this type can range from 50,000 to 150,000 miles, depending on its application. Owner data and maintenance habits are paramount; trucks used in vocational applications with frequent starts/stops and heavy idling may experience faster wear on certain components compared to highway tractors. The long-term durability of the T800’s chassis and cab structure is exceptional. Weaknesses that tend to emerge over extensive use include wear on the drivetrain (engine, transmission, rear axles), suspension bushings, brake components, and electrical system connections. However, with a proactive maintenance schedule and timely repairs, these can often be addressed to keep the T800 operational for decades.

What Technology & Safety Features are Included?

The 2012 Kenworth T800, primarily designed as a vocational workhorse, features a pragmatic approach to technology, prioritizing functionality and driver productivity over cutting-edge infotainment. Built-in tech is generally straightforward and focused on operational needs.

Driver-Assistance Features were not as prevalent or sophisticated as in modern passenger vehicles. Basic features like anti-lock braking systems (ABS) were standard for safety. Options might have included power mirrors and power windows for enhanced driver convenience, and potentially cruise control for highway applications. Advanced driver-assistance systems (ADAS) such as lane departure warnings, adaptive cruise control, or automatic emergency braking were largely unavailable or considered niche optional extras for this era of vocational truck.

Safety Features centered on robust structural integrity and essential braking systems. The T800 is built with a strong, durable frame designed to withstand significant stress. Standard safety equipment would include well-designed lighting systems, durable seatbelts, and the aforementioned ABS. Air disc brakes might have been an option on some configurations for enhanced stopping power.

Entertainment and Infotainment systems were typically basic. A standard radio with AM/FM capabilities and possibly an auxiliary input for portable music players would be common. Higher trim levels or optional packages might have included a CD player or a more integrated audio system. Bluetooth connectivity for hands-free calling was not a common standard feature in 2012 but could be found in some aftermarket installations or as a dealer-added option. Navigation systems were rare and usually an aftermarket addition.

Optional Features for the 2012 T800 were vast and tailored to specific vocational uses. These could include enhanced climate control systems, upgraded driver seats with better ergonomics and adjustability (air-ride seats were popular), auxiliary lighting packages, and specialized toolboxes or storage solutions. The cabin itself was designed for durability and ease of cleaning.

Crash-Test Ratings: It is important to note that heavy-duty commercial trucks like the Kenworth T800 are not typically subjected to the same standardized crash-testing procedures as passenger cars or light-duty trucks by organizations like the NHTSA or IIHS. Their design prioritizes occupant protection in real-world heavy-duty operational scenarios and rollovers, often exceeding the structural requirements mandated for lighter vehicles. Their sheer mass and robust construction provide a significant degree of passive safety.

What Colors Options are Available?

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2012 Kenworth T800 Prices and Market Value

When new, a 2012 Kenworth T800 could range significantly in price, typically from around $100,000 to over $200,000, depending heavily on the specific configuration, engine, transmission, and vocational equipment installed.

Currently, the used market for a 2012 Kenworth T800 sees prices varying widely, often between $30,000 and $80,000 or more. The primary factors influencing resale value are mileage, overall condition (mechanical and cosmetic), maintenance history, engine hours, and the presence of specific vocational equipment that makes it desirable for certain applications.

Kenworth trucks, including the T800, are known for their strong resale value due to their reputation for durability and longevity. Depreciation is generally slower than for many other truck brands or vocational vehicles, especially for well-maintained examples. Trucks with robust maintenance records, lower mileage for their age, and sought-after configurations (like heavy-haul or construction-specific setups) will command higher prices in the used market. Conversely, trucks with high mileage, significant wear and tear, or outdated specifications will depreciate more rapidly.

2012 Kenworth T800 Cost of Ownership

Owning a 2012 Kenworth T800 involves substantial costs, making it a costly vehicle to own and operate, though its value proposition often justifies it. Insurance premiums will be significant, reflecting the vehicle's high purchase price and risk profile. Fuel costs are a major ongoing expense, as these heavy-duty trucks consume considerable amounts of diesel; efficiency varies, but it's never economical in the way a light-duty vehicle is. Maintenance and repair costs are also high, requiring specialized technicians and often expensive parts. Regular preventative maintenance is crucial to mitigate larger repair bills. Overall, while durable, the T800 is a significant investment and operationally costly, but its longevity and capability can make it economical in the long run for businesses relying on its performance.

2012 Kenworth T800 Fuel Efficiency

Fuel Type Diesel
Fuel Capacity -
City Mileage -
Highway Mileage -

2012 Kenworth T800 Recalls & Defects

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, Air:supply:check Valve
Recall date 2012-01-30
Recall no. 12v026000
Source NHTSA
Summary Paccar IS Recalling Certain Model Year 2012-2013 Kenworth T170, T270, T370, T440, T470, T660, T700, T800, W900, and Peterbilt 320, 330, 337, 348, 365, 367, 382, 384, 386, 388, 389, and 587 Vehicles, Manufactured From January 31, 2011, Through January 19, 2012, and Equipped With Bendix Atr-6 Antilock Traction Relay Valves. IN Extremely Cold Conditions, These Bendix Relay Valves MAY Potentially Develop Internal Leakage. Internal Leakage CAN Lead TO AIR Pressure Being Delivered TO Affected Primary or Secondary Brake Causing Continuous Brake Application.
Consequence Unexpected Continuous Brake Application CAN Cause THE Brakes TO Overheat and Lead TO A Fire. Unexpected Continuous Brake Application CAN Cause THE Driver TO Lose Control OF THE Vehicle, Increasing THE Risk OF A Crash. Also, THE Brakes MAY BE Applied Without Illuminating THE Brake Lights, Failing TO Give Proper Warning TO Other Drivers.
Remedy Paccar Will Notify Owners, and Provide A Temporary Repair Until Bendix Develops A Permanent Remedy. This Service Will BE Performed Free OF Charge. THE Safety Recall Began ON February 10, 2012. Owner MAY Contact Kenworth AT 1-425-828-5440 and Peterbilt AT 1-940-591-4196.
Notes Kenworth and Peterbilt Recall Numbers 12kwa/0112-A.customers MAY Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty: 1-800-424-9153); or GO TO Http://www.safercar.gov.
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.
Service Brakes, AIR
Recall date 2017-05-16
Recall no. 17v322000
Source NHTSA
Summary Paccar Incorporated (Paccar) IS Recalling Certain 2012-2018 Kenworth T800 and T880 Vehicles Equipped With Neway ADZ Tridem Rear Suspensions. THE Brake Control Airline MAY BE THE Incorrect Size, Resulting IN AN Imbalance IN THE Service Brake Application Timing. AS Such, These Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard (Fmvss) Number 121, "air Brake Systems."
Consequence AN Incorrectly Sized Airline MAY Lengthen THE Distance Needed TO Stop THE Vehicle, Increasing THE Risk OF A Crash.
Remedy Kenworth Will Notify Owners, and Dealers Will Modify THE AIR Brake System With Updated Brake Piping, Free OF Charge. THE Recall Began ON June 21, 2017. Owners MAY Contact Kenworth Customer Service AT 1-425-828-5000. Paccar's Number FOR This Recall IS 17kwb.
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.

2012 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

2012 Kenworth T800 Insurance

Insurance for a 2012 Kenworth T800 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.

How Does the 2012 Kenworth T800 Compare to Other Truck?

The 2012 Kenworth T800 operates in the highly competitive Class 8 vocational truck segment, facing strong rivals like Peterbilt (sister company under PACCAR), Freightliner, Mack, and Volvo.

Performance: In terms of raw performance, the T800 is on par with its direct competitors. Engines like the PACCAR MX-13 and Cummins ISX offer robust power and torque suitable for heavy hauling, construction, and specialized vocational tasks. Peterbilt models often share similar powertrain options, offering comparable performance. Freightliner and Mack trucks also provide competitive engine choices and chassis durability for demanding applications. Volvo, while also strong, sometimes leans more towards highway efficiency, but their vocational models can compete.

Features: The T800's strength lies in its customizable nature. While its built-in tech in 2012 was functional rather than flashy, the T800 allowed for extensive vocational upfitting. Competitors like Peterbilt offer similar levels of customization. Freightliner, with models like the M2 or Cascadia vocational variants, provides modern cabins and potentially more integrated technology for their respective classes. Mack trucks are renowned for their ruggedness, particularly in construction applications, often featuring durable suspensions and powertrains. Volvo trucks are known for their driver comfort and advanced safety features, which might surpass the T800 in some areas depending on the specific model and options.

Reliability: Kenworth, and by extension the T800, enjoys a legendary reputation for reliability and durability. This is often cited as a key advantage over some competitors, especially when considering long-term ownership. Peterbilt shares this reputation due to shared PACCAR engineering and manufacturing. Freightliner and Mack also have strong reliability records, though perceptions can vary slightly by model and specific powertrain combinations. Volvo has invested heavily in improving its reliability and has a solid standing.

Price: The initial purchase price of a 2012 Kenworth T800 was competitive within its class, often aligning closely with similarly equipped Peterbilt trucks. Freightliner and Mack could sometimes offer slightly lower price points depending on the configuration. Volvo trucks might be positioned at a slightly higher premium, particularly for their more advanced models.

Alternatives:
  • Similar: The Peterbilt 389 or 367 are very similar, sharing much of their core engineering and offering comparable vocational capabilities and renowned durability.
  • Alternative: For a more construction-focused truck with extreme durability, a Mack Granite is an excellent alternative. If a more modern, potentially more technologically integrated vocational truck is desired, a Freightliner M2 112 or Cascadia vocational variant could be considered.
Ultimately, the T800 stands out for its blend of proven engineering, extensive customization options, and enduring reliability, making it a benchmark in its segment. The choice often comes down to brand loyalty, specific vocational needs, and dealer support in a given region.

Final Verdict: Is the 2012 Kenworth T800 a Good Truck?

The 2012 Kenworth T800 is ideally suited for owner-operators and fleet managers who prioritize long-term durability, versatility, and robust performance over cutting-edge technology or flashy interiors. It's a proven workhorse designed for demanding vocational applications such as heavy haul, construction, refuse, and logging.

Whether it's worth buying depends heavily on the specific truck's condition, mileage, and maintenance history. A well-maintained 2012 T800 with reasonable mileage can be an excellent value on the used market, offering many more years of reliable service. It is generally not worth purchasing if it has been neglected, as repair costs can quickly offset initial savings. New T800s are still available and represent a significant investment for those needing the latest configurations and warranties. For most buyers today, focusing on the used market for a meticulously maintained unit, potentially with specific vocational equipment already installed, is the most sensible approach. It represents a reliable, capable, and enduring investment for the right user.

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Simon A

Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.