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2009 Kenworth T370 Overview, Reviews, Ratings & Specs

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Cathleen V | December 5, 2025
The 2009 Kenworth T370 is a robust medium-duty truck known for its versatility and durability, serving commercial and vocational needs.
Produced from 2007 onwards, it typically features a conventional cab body style. While specific trims vary with vocational applications (e.g., dump truck, utility, delivery), the core T370 offers a strong foundation.
Pricing for a used 2009 model can range significantly based on configuration and condition, generally from $25,000 to $60,000+.
It stands out for its renowned Kenworth build quality, driver-centric cockpit, and a wide array of customization options, making it a popular choice for businesses demanding reliability and performance.
The Good

The 2009 Kenworth T370 excels in performance with strong powertrains and robust chassis. Its reliability, a hallmark of Kenworth, ensures minimal downtime. The driver-focused cabin offers surprising comfort for long hauls, appealing to both the practical need for productivity and the emotional desire for a well-appointed workspace.

The Bad

Potential weaknesses for the 2009 Kenworth T370 include the complexity and cost of emissions control systems, particularly the diesel particulate filter (DPF) regeneration and potential failures.
Some owners report issues with certain electronic components and sensors over time.
Additionally, the ride can be firm, especially when unladen, which might detract from comfort on less-than-perfect roads.

2009 Kenworth T370: Quick Overview

Key specifications for the 2009 Kenworth T370 are as follows:

  • Engine Options: Primarily featured PACCAR PX-7 (a Cummins ISB derivative) and optional Cummins ISB engines.
  • Horsepower: Ranged typically from 200 hp to 325 hp, depending on the specific engine configuration and application.
  • Torque: Significant torque ratings, often exceeding 500 lb-ft to 700+ lb-ft, ideal for hauling and vocational tasks.
  • Fuel Economy: Highly variable based on engine, load, terrain, and driving habits. For a medium-duty truck of this era, expect figures ranging from 6-10 miles per gallon (MPG). Real-world efficiency is heavily influenced by how the vehicle is operated and maintained.
  • 0-60 Times: Not a relevant metric for this class of vehicle, as acceleration is focused on load-carrying capability rather than speed.
  • Towing Capacity: Varies greatly depending on chassis configuration, axle ratings, and chosen transmissions. The T370 is designed for medium-duty applications, capable of towing trailers and carrying substantial payloads, often in the 15,000 to 30,000+ lbs range for Gross Combined Weight Rating (GCWR).
  • Transmission Options: Typically offered with robust manual transmissions (e.g., Eaton Fuller) and automatic transmissions (e.g., Allison).
  • Trim-Level Features: The T370 is more of a chassis model than having distinct consumer-facing trims. Features are largely dictated by the vocational body installed and optional equipment chosen by the fleet or owner. Common features include:
    • Driver-focused cab with good visibility
    • Ergonomic controls
    • Various suspension options (leaf spring, air ride)
    • Wheelbase configurations to suit different body types
    • Pre-wiring and mounting points for vocational equipment
    • Available PTO (Power Take-Off) options for auxiliary equipment

2009 Kenworth T370 Specifications

Vehicle Information
Year 2009
Make Kenworth
Model T370
Trim -
Style -
Type Truck
Category Heavy Truck
Manufacturing Details
Made In Canada
Manufacturing City MONTREAL
Dimensions
Doors -
Curb Weight -
Gross Vehicle Weight Rating 57000 pounds
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine 8.3L I6
Engine Size 8.3L
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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What Problems Does the 2009 Kenworth T370 Have?

The 2009 Kenworth T370, like many vehicles from this era, has some commonly reported issues and considerations for long-term reliability. One of the most significant areas to watch involves the emissions control systems. Diesel Particulate Filters (DPF) and Diesel Exhaust Fluid (DEF) systems, if equipped or implemented shortly after 2009, can require significant maintenance and are prone to regeneration issues or clogging if not properly maintained or driven. This can lead to reduced performance, increased fuel consumption, and costly repairs.

Another area of concern can be electrical components and sensors. Over time, particularly with high mileage and exposure to various environmental conditions, sensors related to engine performance, ABS, and other systems can fail. These can be intermittent at first and then lead to a check engine light or other diagnostic trouble codes.

Turbocharger issues, while not exclusive to the T370, can arise on higher-mileage vehicles with insufficient maintenance. Leaks in the turbo plumbing or failure of the turbocharger itself can lead to a significant loss of power.

While the PACCAR PX-7 and Cummins ISB engines are generally robust, it's crucial to ensure regular oil changes, coolant flushes, and air filter replacements to prevent premature wear. The transmission, whether manual or automatic (like Allison), is typically durable, but clutch wear on manuals or torque converter issues on automatics can occur with heavy use.

Specific model year recalls are best checked with the NHTSA database using the VIN. However, general concerns for this age group often relate to potential issues with braking systems, steering components, or exhaust gas recirculation (EGR) valve malfunctions. For a 2009 model, it is also important to consider the general wear and tear on the chassis, suspension, and drivetrain components due to its vocational nature and potential for heavy use.

How long will the 2009 Kenworth T370 last?

The 2009 Kenworth T370 is engineered for longevity and can achieve hundreds of thousands of miles, often exceeding 300,000 to 500,000 miles with diligent maintenance.

Well-maintained T370s, particularly those used for less demanding applications like local delivery or utility work, can last 15-20 years or more. Vehicles used in severe vocational applications (e.g., construction, refuse) may see a shorter service life or require more frequent major component overhauls.

The PACCAR PX-7 engine is known for its durability, but like any diesel, it requires consistent adherence to maintenance schedules. Weaknesses over time often manifest in the emissions system (DPF, EGR) and wearable components such as suspension parts, brakes, and clutch (on manual transmissions), especially with consistent heavy loads.

What Technology & Safety Features are Included?

The 2009 Kenworth T370 prioritizes functionality and durability over cutting-edge technology, reflecting its primary role as a work vehicle.

Built-in Tech & Entertainment:
In 2009, infotainment systems in medium-duty trucks were generally basic. The T370 would likely feature an AM/FM radio, possibly with a CD player. Auxiliary inputs for MP3 players were becoming more common as optional add-ons. Navigation systems were rare and would almost certainly be aftermarket installations. The focus was on providing essential communication and information rather than entertainment.

Driver-Assistance Features:
Advanced driver-assistance systems (ADAS) were not standard or widely available in medium-duty trucks in 2009. Features would typically be limited to the essentials for safe operation. This could include:
  • Power Steering: Standard for ease of maneuverability.
  • ABS (Anti-lock Braking System): Usually standard for improved braking control, especially under load.
  • Backup Alarms: Often installed for vocational applications requiring safe maneuvering in confined spaces.
Optional features might include cruise control and heated mirrors, enhancing driver comfort and convenience for longer routes.

Safety Features:
Safety was addressed through robust structural design and standard safety equipment. Key safety features included:
  • Heavy-duty chassis and cab construction: Designed to withstand rigorous use and provide protection.
  • Seatbelts: Standard for driver and passenger.
  • Heated and power-adjustable mirrors: Crucial for maintaining visibility in various weather conditions.
  • Daytime Running Lights: To enhance visibility to other road users.
Crash-Test Ratings:
Dedicated crash-test ratings, such as those provided by the NHTSA for passenger vehicles, are not typically performed or published for medium-duty commercial trucks like the Kenworth T370. The design emphasis is on structural integrity, driver visibility, and load stability rather than occupant protection in the same way a car is tested. However, Kenworth trucks are built to stringent industry safety standards.

What Colors Options are Available?

We’re working on this section!
In the meantime, feel free to explore the other sections for more content.

2009 Kenworth T370 Prices and Market Value

When new, the 2009 Kenworth T370 could range significantly in price depending on its configuration, body type, and chosen options, generally from approximately $70,000 to $130,000+.

Currently, the used market price for a 2009 Kenworth T370 varies widely based on mileage, condition, engine, transmission, and vocational body. Expect prices to typically fall between $25,000 and $60,000, with specialized or low-mileage units commanding higher figures.

Depreciation is generally slower for commercial trucks compared to consumer vehicles, as their utility and durability are highly valued. Factors affecting resale value include:
  • Mileage: Lower mileage equals higher value.
  • Maintenance Records: Comprehensive service history indicates good care.
  • Condition: Overall mechanical and cosmetic condition are critical.
  • Engine and Transmission: Desirable powertrain configurations hold value better.
  • Vocational Body: The type and condition of the installed body (e.g., dump, flatbed, service) significantly impact desirability and price.
  • Emissions Compliance: Older diesel engines may face scrutiny in certain regions.

2009 Kenworth T370 Cost of Ownership

Owning a 2009 Kenworth T370 involves significant operational costs.

Insurance will be higher than for a light-duty vehicle, reflecting its commercial classification and value. Fuel costs depend heavily on usage and diesel prices, with an estimated 6-10 MPG.

Maintenance is crucial; expect regular oil changes, filter replacements, and potentially more significant services on the engine and drivetrain, costing several hundred to a few thousand dollars annually depending on mileage. Repair costs can be substantial, especially for engine components, emissions systems, or specialized vocational equipment.

Overall, the T370 is not an economical vehicle to own in terms of day-to-day running costs, but its long-term durability and work capability can make it a cost-effective investment for businesses when managed properly.

2009 Kenworth T370 Fuel Efficiency

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

2009 Kenworth T370 Recalls & Defects

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.
Service Brakes, Hydraulic
Recall date 2009-04-29
Recall no. 09v140000
Source NHTSA
Summary Paccar IS Recalling 2 MY 2009 Kenworth T270 and T370 4X2 Trucks. THE Anchor Plate TIE BAR Which Reinforces THE Anchor Plate ON 73mm Calipers WAS NOT Installed. Under High Torque Brake Applications THE Slide Pins Could Bind, Resulting IN A Reduction OF THE Braking Effort And/Or Brake Drag Caused BY Incomplete Brake Release; or THE Anchor Plate Could Fatigue, Resulting IN A Cracked And/Or Fracture Anchor Plate.
Consequence This Condition Could Result IN Reduced Braking Capacity and Increased Stopping Distances, or Part OF THE Anchor Plate Could Separate and Fall Onto THE Roadway. Either OF These Could Increase THE Risk OF A Crash.
Remedy Dealers Will Inspect THE Brakes ON THE Affected Chassis FOR THE Presence OF THE Anchor Plate TIE Bar; and Install THE Anchor Plate TIE BAR IF Missing Free OF Charge. All Vehicles Have Been Fixed. Owner MAY Contact Kenworth AT 425-828-5440.
Notes Peterbilt Recall NO. 409b & Kenworth Recall NO. 09kw2.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:engine:diesel
Recall date 2009-09-03
Recall no. 09v348000
Source NHTSA
Summary Paccar IS Recalling Model Year 2008-2010 Kenworth T300, T270, and T370, Model Year 2009-2010 T800 and Peterbilt Model Year 2008-2010 335, 340, and 367 Vehicles Built ON Cummins' Diesel Engine. THE Vehicles MAY BE Designed With A Hard Wired, Dash-mounted Switch That Enables THE Vehicle Operator TO Inhibit Aftertreatment Diesel Particulate Filter Regeneration IN Environments Where THE Operator Believes IT MAY BE Unsafe FOR Elevated Exhaust Temperatures. DUE TO AN Issue With THE Logic IN THE ECM Software IN These Engines, THE Switch MAY NOT Function Correctly, Leading THE Operator TO Believe That THE Switch IS IN "inhibit" Mode When IT IS Not.
Consequence This Condition Will Permit HOT Exhaust Gases TO Exit THE Vehicle Tailpipe, Increasing THE Risk OF Melting or Burning OF Nearby Surfaces, or A Fire.
Remedy Paccar IS Working With Cummins TO Repair THE Engines Free OF Charge Please SEE 09e-046. THE Safety Recall Began ON October 1, 2009. Owners MAY Contact Cummins AT 1-800-diesels (1-800-343-7357).
Notes Kenworth Recall NO. 09kw9 & Peterbilt Recall NO. 909-D.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> .

2009 Kenworth T370 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

2009 Kenworth T370 Insurance

Insurance for a 2009 Kenworth T370 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.

How Does the 2009 Kenworth T370 Compare to Other Truck?

The 2009 Kenworth T370 competes in the medium-duty truck segment against strong contenders. Key rivals include the International 4300/7300 series, Freightliner M2 series, and Hino 195/258 series.

Performance: The T370, with its PACCAR or Cummins engine options, typically offers robust horsepower and torque ratings competitive with most International and Freightliner models in this class. Hino trucks often provide good performance for their size but might trail slightly in sheer grunt for the heaviest vocational tasks compared to a well-spec'd Kenworth.

Features: Kenworth trucks are known for their driver-centric cabs, emphasizing ergonomics and visibility, which often surpasses what is found in comparable International or Freightliner models of the same vintage. Hino may offer more modern interior aesthetics in some trims, but the T370's build quality and operator comfort are strong points.

Reliability: Kenworth has a long-standing reputation for superior build quality and durability, generally outperforming many rivals in terms of long-term reliability and robustness, especially in demanding applications. International and Freightliner also offer reliable platforms, but Kenworth often holds a slight edge in perceived and actual long-term resilience. Hino is known for good reliability but sometimes with a perception of being less heavy-duty than its North American counterparts.

Price: In 2009, Kenworth trucks typically commanded a premium price when new due to their brand reputation and build quality. Used, the T370 often retains its value well. International and Freightliner might have been more competitively priced initially, and Hino often represented a good value proposition.

Recommendations:
  • Similar Alternatives: If seeking comparable robustness and driver comfort, the Freightliner M2 106/114 and the International 4300/7300 series are strong contenders. They offer similar capabilities and a wide range of vocational applications.
  • Value Alternative: The Hino 195/258 series can be a good option if budget is a primary concern and slightly less extreme duty cycles are anticipated. They often offer a balance of performance, reliability, and potentially lower acquisition cost.
  • If Prioritizing Durability: For applications where absolute toughness and longevity are paramount, and budget allows for the premium, the Kenworth T370 remains a top-tier choice.

Final Verdict: Is the 2009 Kenworth T370 a Good Truck?

The 2009 Kenworth T370 is ideal for small to medium-sized businesses, contractors, municipalities, and fleet operators who require a dependable, durable, and versatile medium-duty truck for a wide range of vocational applications.

It is absolutely worth buying for those prioritizing longevity, driver comfort, and robust performance over cutting-edge technology.

This vehicle is best considered in the used market. Buying a used 2009 T370 is a wise choice if it has a well-documented maintenance history and the specific vocational body matches your needs. Thorough pre-purchase inspections, particularly focusing on the engine, emissions system, and structural integrity, are essential. It's less about specific trims and more about ensuring the chassis and powertrain are sound for its intended work. For businesses needing a workhorse that can handle tough jobs reliably for years to come, the T370 remains a strong investment.

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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.