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2009 Kenworth T300 Overview, Reviews, Ratings & Specs

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Eugene S | October 23, 2025
The 2009 Kenworth T300 is a popular Class 5-7 conventional truck, known for its versatility and robust construction, primarily produced from 1996 to 2015. Its primary body style is a straight truck, often configured for vocational applications like utility, construction, and delivery services. While specific trims varied by vocational use, the T300 was built for durability. New pricing in its era typically ranged from $70,000 to $120,000 depending on configuration. Its popularity stems from its legendary Kenworth build quality, offering a reliable workhorse for demanding jobs.
The Good

The 2009 Kenworth T300 excels in rugged performance and unwavering reliability, essential for demanding work. Its comfortable, driver-focused cabin appeals to those spending long hours on the road, while its durable design promises long-term value. This truck offers peace of mind and a dependable investment for any vocational need.

The Bad

When considering a 2009 Kenworth T300, potential buyers should watch out for common issues related to older emission systems and potential wear on powertrain components, especially if maintenance records are incomplete. Electrical gremlins and rust on the chassis, particularly in harsher climates, are also areas to inspect carefully.

2009 Kenworth T300: Quick Overview

The 2009 Kenworth T300 offered a range of robust specifications tailored for vocational applications:

  • Engine Options: Typically featured PACCAR PX-6 or Cummins ISB engines.
  • Horsepower: Ranged from approximately 200 hp to 325 hp, depending on the specific engine and configuration.
  • Torque: Available torque outputs generally fell between 520 lb-ft and 750 lb-ft, providing ample pulling power.
  • Fuel Economy: Fuel economy for a truck of this class and year is highly variable, depending on load, terrain, driving style, and engine. A reasonable expectation for highway driving might be in the 8-12 MPG range, though city driving or heavy loads would significantly reduce this.
  • 0-60 Times: 0-60 mph times are not a standard metric for commercial trucks like the T300, as their purpose is not rapid acceleration but sustained work. When loaded, acceleration would be very gradual.
  • Towing Capacity: The towing capacity varies greatly based on the chassis configuration, wheelbase, rear axle ratio, and specific vocational body. However, a properly equipped T300 could be configured for Gross Combination Weight Ratings (GCWR) well over 50,000 lbs, making it suitable for towing substantial trailers.
  • Trim-Level Features: The T300 was less about traditional trim levels (like LX, EX) and more about vocational configurations. Key features included:
    • Durable, heavy-duty chassis designed for upfitting with various bodies (e.g., service bodies, dump beds, box trucks, tow trucks).
    • Standard air brakes for reliable stopping power.
    • Robust suspension systems (leaf spring or air suspension options).
    • Ergonomic cab designed for driver visibility and comfort during long workdays.
    • Optional features could include power windows and locks, air conditioning, upgraded seating, and various PTO (Power Take-Off) options for auxiliary equipment.
    • Dash-mounted controls for integrated vocational equipment.

2009 Kenworth T300 Specifications

Vehicle Information
Year 2009
Make Kenworth
Model T300
Trim -
Style -
Type Truck
Category Heavy Truck
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 8.3-L L-6 Diesel
Engine Size 8.3L
Engine Cylinders 6
Transmission -
Transmission Type -
Transmission Speeds -
Drivetrain 6x2
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 T300 Have?

The 2009 Kenworth T300, being a workhorse vehicle, can encounter certain issues typical of trucks of its age and intended use. While generally considered reliable, some frequently reported problems and long-term concerns include:

  • Emission System Issues: Trucks from this era, especially those equipped with diesel particulate filters (DPFs) and selective catalytic reduction (SCR) systems, can experience clogging or malfunctions. The 2009 model year was in a transition period for emissions regulations, and these systems can be costly to repair or regenerate if not properly maintained. Issues like DPF regeneration failures or sensor malfunctions are not uncommon.
  • Electrical Gremlins: As with many trucks that operate in demanding environments, electrical components can be susceptible to wear and tear. This can manifest as intermittent issues with lights, sensors, or dashboard warning lights. Corroded connections or damaged wiring harnesses are also potential culprits.
  • Rust and Corrosion: In regions with harsh weather conditions, road salt, or coastal environments, the chassis and body panels can be prone to rust. Thorough inspection of the frame rails, cab corners, and wheel wells is crucial.
  • Suspension and Drivetrain Wear: Given the vocational nature of the T300, components like suspension bushings, U-joints, and bearings can experience significant wear over time, especially if the truck has been used for heavy-duty applications.
  • Cooling System Leaks: Radiator hoses, water pumps, and gaskets can develop leaks with age, leading to overheating issues. Regular checks of the coolant level and system pressure are advisable.
  • Recalls: While specific recalls for the 2009 model year can vary, it is essential to check the National Highway Traffic Safety Administration (NHTSA) database for any outstanding safety recalls for a particular VIN. Common recall areas for trucks of this period could involve braking system components, steering linkages, or certain electrical system parts.

Long-term reliability is generally good for Kenworths, but it heavily depends on the initial quality of ownership, consistent maintenance adherence, and the severity of its operational use. A well-maintained T300 can continue to serve effectively for many years, but potential buyers should be prepared for maintenance expenses associated with aging components.

How long will the 2009 Kenworth T300 last?

The 2009 Kenworth T300 is built for longevity, and with proper, consistent maintenance, it's not uncommon for these trucks to achieve 300,000 to 500,000 miles or more. Many owners report continuing to use their T300s well into their second decade of service, with some even surpassing 750,000 miles. Its long-term durability is a hallmark of Kenworth engineering, characterized by robust chassis and drivetrain components. However, weaknesses over time can emerge, primarily related to aging emission control systems (especially DPFs and sensors), electrical connections, and the gradual wear of suspension and brake components. Proactive maintenance is key to mitigating these potential issues and maximizing the truck's service life.

What Technology & Safety Features are Included?

The 2009 Kenworth T300, as a vocational truck, prioritizes functionality and safety over advanced infotainment or driver-assistance technology, which were less common in this class at the time.

Standard Safety Features typically included:
  • Robust Frame and Cab Structure: Designed to withstand heavy use and provide occupant protection.
  • Air Brakes: Standard on most configurations, offering superior stopping power compared to hydraulic brakes, essential for heavy loads.
  • Seat Belts: Standard safety restraint system.
  • Mirrors: Multiple mirrors for enhanced visibility around the large vehicle.
  • Lights: Comprehensive lighting system including headlights, taillights, turn signals, and hazard lights.

Built-in Tech and Entertainment:
The technology in a 2009 T300 is generally basic, focusing on essential operational information. This would likely include:
  • Analog Gauges: Traditional gauges for speed, RPM, fuel level, engine temperature, and air pressure.
  • Basic Audio System: An AM/FM radio, often with a single-CD player, was common. Auxiliary input jacks were less prevalent.
  • Warning Lights: Indicator lights for various system diagnostics and warnings.

Driver-Assistance Features:
Advanced driver-assistance systems (ADAS) like lane departure warning, adaptive cruise control, or automatic emergency braking were virtually non-existent in the 2009 T300. The focus was on the driver's direct control and situational awareness.

Optional Features:
Depending on the specific configuration and the buyer's needs, optional features could include:
  • Power windows and door locks (more common on higher-spec models).
  • Air conditioning.
  • Upgraded seating with air-ride suspension for the driver's seat.
  • Cruise control.
  • Various auxiliary power outlets.
  • Telematics or GPS tracking systems (often aftermarket or fleet-installed).

Crash-Test Ratings:
Commercial trucks like the Kenworth T300 are typically not subjected to the same consumer-focused crash-test ratings (like NHTSA's 5-star system) as passenger vehicles. Their safety is evaluated based on Federal Motor Vehicle Safety Standards (FMVSS) and industry-specific regulations governing the design and operation of heavy-duty vehicles. Kenworth vehicles are engineered to meet stringent safety requirements for their intended commercial use.

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2009 Kenworth T300 Prices and Market Value

When new, a 2009 Kenworth T300 typically commanded a price range of $70,000 to $120,000, heavily dependent on its vocational configuration, engine choice, and added options.

Today, the used market for a 2009 Kenworth T300 shows significant depreciation from its original MSRP, with prices generally falling between $15,000 and $45,000. This range is greatly influenced by mileage, overall condition, maintenance history, the specific vocational body installed, and engine hours.

Factors significantly affecting resale value include:
  • Mileage: Lower mileage vehicles command higher prices.
  • Condition: Excellent mechanical and cosmetic condition is crucial.
  • Maintenance Records: Comprehensive service history adds considerable value.
  • Body Type: Certain vocational bodies (e.g., well-maintained service bodies, dump beds) can be more desirable.
  • Emissions Compliance: Newer emissions systems or well-maintained older ones can impact value.

Kenworths generally hold their value better than many competitors due to their reputation for durability, making them a sound investment even on the used market if purchased wisely.

2009 Kenworth T300 Cost of Ownership

Owning a 2009 Kenworth T300 involves substantial costs, making it more costly than a typical consumer vehicle. Insurance premiums will be higher due to its commercial classification, value, and potential risks. Fuel costs are significant; expect 8-12 MPG highway, heavily impacted by load and terrain. Maintenance is paramount for reliability; regular oil changes, filter replacements, and chassis lubrication are essential, costing several hundred dollars per service. Repairs, especially for diesel engines and complex vocational systems, can be expensive, often running into thousands of dollars. Overall, while built for work, it is a costly vehicle to own and operate, demanding a significant operational budget.

2009 Kenworth T300 Fuel Efficiency

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

2009 Kenworth T300 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 T300 Insurance

Insurance for a 2009 Kenworth T300 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.

How Does the 2009 Kenworth T300 Compare to Other Truck?

The 2009 Kenworth T300 competes in the Class 5-7 vocational truck segment against strong rivals such as the Freightliner M2, International 4000/7000 series, and Hino 2000/3000 series.

Performance: The T300, with its PACCAR or Cummins engines, generally offers competitive power and torque for vocational tasks, often excelling in durability and heavy-duty application suitability. Freightliner M2 trucks can offer a similar range of powertrains, while International trucks also provide robust diesel options. Hino trucks might offer slightly more refined engines in some configurations.

Features: In 2009, feature sets were largely utilitarian across all these brands. Kenworth's focus on driver ergonomics and cab durability is a standout. Competitors like Freightliner often pushed for more modern cab designs and integrated technology, while International focused on ruggedness. Hino might have offered more compact or specialized chassis for certain urban vocational needs.

Reliability: Kenworth consistently leads in perceived and actual long-term reliability and build quality. The T300 is renowned for its robust construction, which often translates to lower long-term repair costs and higher resale value compared to some competitors. While Freightliner and International are also generally reliable, Kenworth often has an edge in overall durability and resistance to harsh conditions. Hino trucks are also known for reliability, especially in their specific applications.

Price: When new, these trucks were similarly priced, though Kenworth often carried a slight premium due to its reputation. In the used market, the 2009 T300 tends to hold its value better than many direct competitors, reflecting its superior long-term durability.

Alternatives:
  • Similar: Freightliner M2 series offers comparable versatility and performance. International 4000/7000 series are also strong contenders in the vocational space.
  • Potentially Better (depending on need): If a more maneuverable or urban-focused truck is needed, a smaller chassis like an Isuzu NPR or a Hino 155/195 might be considered, though they would likely have lower overall capacity and durability for severe vocational use. For sheer bulletproof longevity in the toughest conditions, the Kenworth T300 is often the benchmark.

Final Verdict: Is the 2009 Kenworth T300 a Good Truck?

The 2009 Kenworth T300 is ideally suited for businesses and owner-operators requiring a dependable, durable vocational truck for demanding tasks such as construction, utility work, delivery, or specialized hauling. It's worth buying, especially on the used market, for those prioritizing longevity, robust construction, and a strong reputation for reliability over cutting-edge technology.

Buying a used T300 is the most practical approach today. It's crucial to purchase one with thorough maintenance records and a pre-purchase inspection, paying close attention to engine health, emissions systems, and chassis condition. Specific vocational trims, like those with service bodies or dump beds, should be evaluated for their intended use. It represents a solid investment if acquired with realistic expectations regarding ongoing maintenance costs, which are inherent to any heavy-duty truck of this age.

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Eugene S

Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehicles—starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.