The 2021 Kenworth T310 is a robust medium-duty conventional truck, part of Kenworth's esteemed line known for durability and vocational versatility. It typically features a straight truck chassis-cab body style, available for various upfits like dump, refuse, or box applications. While the T310 name specifically refers to the 2021 model, it's part of a broader T-Series legacy. Key configurations include different cab types and engine options. Its popularity stems from Kenworth's reputation for reliability, strong resale value, and the truck's adaptability for diverse commercial needs, making it a workhorse on the road. Pricing for a chassis-cab started broadly from $80,000 to $120,000+ depending on specifications, excluding the final body.
The Good
The 2021 Kenworth T310 boasts exceptional reliability and robust performance, powered by dependable PACCAR engines, crucial for demanding vocational tasks. Its driver-focused design prioritizes comfort with a well-appointed cab and excellent visibility. Practical buyers appreciate its long service life, strong resale value, and efficiency tailored to specific duty cycles, minimizing downtime. Emotionally, owners value the pride of operating a "Big Rig" brand, knowing they have a durable, adaptable, and trusted work partner.
The Bad
While generally reliable, the 2021 Kenworth T310 can be susceptible to common modern diesel truck issues. Owners should watch out for potential complexities with the advanced emissions systems (DEF, DPF), which can lead to downtime if not properly maintained. Maintenance costs for specialized components can also be higher than anticipated. Specific electronic module glitches, though less common, warrant attention during pre-purchase inspections. Availability of parts for certain proprietary systems might also pose a challenge in some regions.
2021 Kenworth 310: Quick Overview
The 2021 Kenworth T310 is a highly configurable medium-duty truck designed for vocational applications. Here is a summary of its key specifications:
- Engine Options: The T310 typically featured PACCAR engines, renowned for their efficiency and power. Primary options included:
- PACCAR PX-7: A 6.7-liter inline 6-cylinder diesel engine, ideal for a wide range of medium-duty applications.
- PACCAR PX-9: An 8.9-liter inline 6-cylinder diesel engine, offering more power and torque for heavier-duty tasks.
- Horsepower: Horsepower ratings varied significantly based on the chosen engine and specific tuning:
- PACCAR PX-7: Ranged from approximately 200 to 325 horsepower.
- PACCAR PX-9: Ranged from approximately 260 to 380 horsepower.
- Fuel Economy: Fuel economy for commercial trucks like the T310 is highly dependent on the duty cycle, load, body type, and driving habits. It is not typically expressed in MPG like passenger vehicles but rather as an operating cost efficiency. Estimates often fall into the 6-10 MPG range for a fully loaded vocational truck, but this can vary greatly.
- 0-60 Times: 0-60 mph acceleration times are not a relevant performance metric for commercial medium-duty trucks. These vehicles are designed for hauling and vocational tasks, prioritizing torque, durability, and sustained power over rapid acceleration.
- Towing Capacity (GVWR/GCWR): The T310 is a straight truck chassis, so "towing capacity" refers more to its Gross Vehicle Weight Rating (GVWR) and Gross Combination Weight Rating (GCWR) for hauling its own load and potentially a trailer. GVWRs typically ranged from 26,000 lbs to 33,000 lbs, depending on the axle configuration and intended application. GCWRs could extend beyond 40,000 lbs for certain configurations with trailers.
- Trim-Level Features & Customization: The T310 is essentially a chassis-cab, meaning "trims" refer more to customization options rather than fixed packages. Key features and options include:
- Cab Configurations: Day Cab (standard) or Extended Cab for increased driver space.
- Interior Packages: Basic functional interiors with vinyl or cloth seats, with optional upgrades for driver comfort, enhanced instrumentation, and storage.
- Driveline Options: Various transmission choices (manual or automatic, e.g., Allison automatics), axle ratios, and suspension types (leaf spring or air ride).
- Vocational Options: Power Take-Off (PTO) provisions, heavy-duty frame rails, specialized wiring harnesses, and body builder interfaces to accommodate specific upfits (e.g., dump, refuse, utility, flatbed, reefer).
- Brake Systems: Standard air brakes with ABS.
- Exterior Options: Various wheel types, fuel tank sizes, and lighting packages.
The T310's strength lies in its ability to be highly customized to meet diverse business requirements.
2021 Kenworth 310 Specifications
Vehicle Information
| Year | 2021 |
| Make | Kenworth |
| Model | 310 |
| Trim | - |
| Style | - |
| Type | Truck |
| Category | Heavy Truck |
Manufacturing Details
| Made In | United States |
| Manufacturing City | CHILLICOTHE |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 33001 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 12.9L L6 DIESEL |
| Engine Size | 12.9L |
| 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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What Problems Does the 2021 Kenworth 310 Have?
For the 2021 Kenworth T310, like many modern medium-duty trucks, frequently reported problems often revolve around the complex emissions control systems. The Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR) systems, which include Diesel Exhaust Fluid (DEF) components, are common sources of issues. These systems are critical for compliance but can be prone to sensor failures, clogging, and software glitches, especially if maintenance schedules are not rigorously followed or if the truck experiences prolonged idling or short-haul, low-temperature operations. Failures here can lead to "derate" conditions, severely limiting engine power and causing significant downtime and repair costs.
Electrical system issues, while not rampant, can also occur. These might include problems with wiring harnesses, sensor failures, or issues with the truck's various electronic control modules (ECMs) that govern engine, transmission, and body functions. These can manifest as intermittent warning lights, communication errors, or unexpected component malfunctions.
Regarding recalls for the 2021 Kenworth T310 specifically, a review of NHTSA (National Highway Traffic Safety Administration) data for Kenworth trucks around that model year shows general recalls affecting various models, not necessarily unique to the T310. For instance, recalls related to potential brake system defects, steering components, or certain supplier parts (like seat belt assemblies or tire issues) have been issued across Kenworth's lineup. It is crucial for any potential buyer or owner to check the VIN against the NHTSA recall database to ensure all applicable recalls have been addressed.
Long-term reliability concerns for the T310 primarily relate to the longevity and cost of maintaining these sophisticated emissions systems and ensuring the engine and transmission, while robust, receive proper care. Over time, the wear and tear on suspension components, air conditioning systems, and general cab ergonomics can also become more noticeable. However, the core mechanicals of Kenworth trucks, particularly the frame and driveline, are generally designed for hundreds of thousands of miles of heavy service with proper preventative maintenance. Consistent and quality maintenance is the biggest factor in mitigating these potential long-term issues.
Electrical system issues, while not rampant, can also occur. These might include problems with wiring harnesses, sensor failures, or issues with the truck's various electronic control modules (ECMs) that govern engine, transmission, and body functions. These can manifest as intermittent warning lights, communication errors, or unexpected component malfunctions.
Regarding recalls for the 2021 Kenworth T310 specifically, a review of NHTSA (National Highway Traffic Safety Administration) data for Kenworth trucks around that model year shows general recalls affecting various models, not necessarily unique to the T310. For instance, recalls related to potential brake system defects, steering components, or certain supplier parts (like seat belt assemblies or tire issues) have been issued across Kenworth's lineup. It is crucial for any potential buyer or owner to check the VIN against the NHTSA recall database to ensure all applicable recalls have been addressed.
Long-term reliability concerns for the T310 primarily relate to the longevity and cost of maintaining these sophisticated emissions systems and ensuring the engine and transmission, while robust, receive proper care. Over time, the wear and tear on suspension components, air conditioning systems, and general cab ergonomics can also become more noticeable. However, the core mechanicals of Kenworth trucks, particularly the frame and driveline, are generally designed for hundreds of thousands of miles of heavy service with proper preventative maintenance. Consistent and quality maintenance is the biggest factor in mitigating these potential long-term issues.
How long will the 2021 Kenworth 310 last?
The 2021 Kenworth T310, like most well-maintained medium-duty commercial trucks, is built for a long operational life. With diligent preventative maintenance and proper operation, owners can realistically expect an average mileage of 300,000 to 500,000 miles, with many reaching beyond 600,000 miles. In terms of years, a T310 can provide 10 to 15 years of reliable service, often longer in less demanding applications or with comprehensive rebuilds.
Long-term durability is a Kenworth hallmark, with robust chassis, axles, and PACCAR powertrains designed for sustained heavy use. The main frame rails and major driveline components are extremely durable. However, weaknesses over time often manifest in the emissions systems (DPF/SCR), which are prone to age-related issues and sensor failures. Electrical components, air conditioning systems, and interior wear (seats, dash plastics) are also common areas requiring attention as the truck accumulates mileage and years. Proactive fluid changes, filter replacements, and addressing minor issues promptly are critical for achieving maximum service life and mitigating these weaknesses.
Long-term durability is a Kenworth hallmark, with robust chassis, axles, and PACCAR powertrains designed for sustained heavy use. The main frame rails and major driveline components are extremely durable. However, weaknesses over time often manifest in the emissions systems (DPF/SCR), which are prone to age-related issues and sensor failures. Electrical components, air conditioning systems, and interior wear (seats, dash plastics) are also common areas requiring attention as the truck accumulates mileage and years. Proactive fluid changes, filter replacements, and addressing minor issues promptly are critical for achieving maximum service life and mitigating these weaknesses.
What Technology & Safety Features are Included?
The 2021 Kenworth T310, as a medium-duty vocational truck, focuses on functional technology and safety features tailored for its demanding work environment rather than luxury or extensive passenger car amenities. Built-in tech primarily revolves around driver information and fleet management.
- Built-in Tech & Entertainment: The T310's cab typically features a functional dashboard with clear analog gauges for critical information like speed, RPMs, air pressure, and fluid levels. A digital driver information display provides additional data, diagnostics, and trip information. Entertainment is basic but practical, often including an AM/FM stereo with Bluetooth connectivity for hands-free calling and audio streaming. USB ports for charging are usually present. Many trucks also come equipped with pre-wiring or integrated telematics systems, which are essential for fleet tracking, diagnostics, and driver performance monitoring.
- Driver-Assistance Features: While not as advanced as those in modern passenger vehicles, the T310 offers crucial driver-assistance systems. Standard features typically include Anti-lock Braking System (ABS) and Traction Control. Optional, but increasingly common, are advanced systems like Electronic Stability Control (ESC) to prevent rollovers and skids. Many Kenworth models offer optional collision mitigation systems, often from suppliers like Bendix, which can include:
- Bendix Wingman Fusion: Combines radar and camera technology to provide collision warnings, adaptive cruise control, and even autonomous emergency braking in certain situations.
- Lane Departure Warning (LDW): Alerts the driver if the truck drifts out of its lane without signaling.
- Safety Features: The T310's primary safety features are its robust construction, excellent outward visibility from the cab, and powerful air brake system. The cab structure itself is designed for occupant protection in the event of an accident. Other safety essentials include high-visibility lighting, ergonomic controls, and multiple mirrors to minimize blind spots. Airbags, while common in passenger cars, are less typical in medium-duty vocational trucks but are available in some configurations, particularly for the driver.
- Crash-Test Ratings: It is important to note that commercial trucks like the Kenworth T310 are not subjected to crash-test ratings by organizations such as NHTSA or IIHS, as passenger vehicles are. Their safety compliance is governed by different federal motor vehicle safety standards (FMVSS) that focus on specific components and structural integrity relevant to commercial operation. Therefore, no public crash-test ratings are available for the 2021 Kenworth T310. Safety is instead assessed through design, component testing, and compliance with commercial vehicle regulations.
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.
2021 Kenworth 310 Prices and Market Value
When new, the 2021 Kenworth T310 chassis-cab had a wide pricing range, typically starting from approximately $80,000 to $120,000, and often significantly higher depending on engine, transmission, axle configurations, and additional options. With a specialized body (e.g., dump, refuse, reefer), the total new price could easily reach $150,000 to $250,000 or more.
As of the current used market, prices for a 2021 T310 are highly variable. A well-maintained 2021 T310 chassis-cab might fetch $60,000 to $100,000+, while a complete vocational truck could range from $100,000 to $180,000+, depending heavily on mileage, condition, and the type/condition of the installed body. Commercial trucks generally depreciate slower than passenger cars due to their utility and long service life. Factors affecting resale value include low mileage, extensive maintenance records, a desirable body configuration, a clean vehicle history, and the overall condition of the powertrain, chassis, and emissions system. High mileage, deferred maintenance, and specific vocational bodies with limited demand can significantly reduce resale value.
As of the current used market, prices for a 2021 T310 are highly variable. A well-maintained 2021 T310 chassis-cab might fetch $60,000 to $100,000+, while a complete vocational truck could range from $100,000 to $180,000+, depending heavily on mileage, condition, and the type/condition of the installed body. Commercial trucks generally depreciate slower than passenger cars due to their utility and long service life. Factors affecting resale value include low mileage, extensive maintenance records, a desirable body configuration, a clean vehicle history, and the overall condition of the powertrain, chassis, and emissions system. High mileage, deferred maintenance, and specific vocational bodies with limited demand can significantly reduce resale value.
2021 Kenworth 310 Cost of Ownership
Owning a 2021 Kenworth T310 is a substantial financial commitment. Commercial insurance is significantly more costly than personal vehicle insurance, varying by usage, location, and coverage. Fuel, primarily diesel, represents a major ongoing expense, especially with fluctuating prices and the truck's typical duty cycle. Maintenance is critical and expensive; preventative services (oil changes, filter replacements, brake inspections) must be done rigorously, often costing thousands annually. Repairs, particularly for complex emissions systems or major drivetrain components, can be very costly due to specialized parts and labor.
In summary, the 2021 Kenworth T310 is a costly vehicle to own from an operational standpoint. However, these costs are typically offset by the income-generating potential for businesses, making it an investment rather than an economical personal vehicle. Long-term ownership demands careful budgeting for ongoing expenses and potential major repairs.
In summary, the 2021 Kenworth T310 is a costly vehicle to own from an operational standpoint. However, these costs are typically offset by the income-generating potential for businesses, making it an investment rather than an economical personal vehicle. Long-term ownership demands careful budgeting for ongoing expenses and potential major repairs.
2021 Kenworth 310 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2021 Kenworth 310 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
2021 Kenworth 310 Insurance
Insurance for a 2021 Kenworth 310 is moderately priced, reflecting its status as a Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2021 Kenworth 310 Compare to Other Truck?
The 2021 Kenworth T310 competes in the highly contested medium-duty vocational truck segment, facing strong rivals that include the Peterbilt 337/348, Freightliner M2 106, International MV Series, Hino 300 Series, and Isuzu F-Series.
Similar Alternatives:
The 'better' alternative depends on specific operational needs, budget, and dealer support. For those prioritizing a premium brand, vocational toughness, and strong resale, the T310 is excellent. For a balance of value, customization, and broad support, the Freightliner M2 106 is an equally compelling choice.
- Performance: The T310, with its PACCAR PX-7 and PX-9 engines, offers solid and reliable performance, known for good torque delivery essential for vocational tasks. Peterbilt models (being PACCAR's sister brand) offer very similar powertrain options. Freightliner M2 106 often uses Cummins B6.7 or L9 engines, which are equally robust and offer comparable power and efficiency. International MV also relies on Cummins (B6.7/L9) or its own A26, while Hino and Isuzu utilize their proprietary engines, often excelling in maneuverability and urban efficiency.
- Features: Kenworth trucks, including the T310, are known for their driver-centric cabs with good visibility and durable interiors. Standard features are practical, with optional advanced safety (e.g., Bendix Wingman Fusion) becoming common across the class. Freightliner M2s are highly customizable and often feature advanced telematics and driver comfort options. International and Peterbilt also offer strong customization. Hino and Isuzu often focus on compact design and ease of service for urban operations.
- Reliability: The T310 benefits from Kenworth's strong reputation for durability and longevity. Its PACCAR engines are generally reliable, although emissions systems are a common point of concern across all brands. Peterbilt shares this reliability profile. Freightliner and International are also considered reliable workhorses, with extensive dealer networks. Hino and Isuzu have strong reliability records, particularly for their smaller footprint trucks.
- Price: Kenworth and Peterbilt generally command a premium price due to their brand perception and perceived build quality. Freightliner M2 106 is often considered a value leader, offering competitive pricing with a wide range of options. International offers strong value propositions as well. Hino and Isuzu tend to be competitively priced, especially for lighter-duty applications.
Similar Alternatives:
- Peterbilt 337/348: Very similar to the T310 due to shared PACCAR platforms, offering comparable performance, features, and reliability. The choice often comes down to dealer preference or minor styling differences.
- Freightliner M2 106: A highly popular and versatile alternative, known for its extensive configurability, strong Cummins engine options, and competitive pricing. It has a vast dealer network and strong aftermarket support.
The 'better' alternative depends on specific operational needs, budget, and dealer support. For those prioritizing a premium brand, vocational toughness, and strong resale, the T310 is excellent. For a balance of value, customization, and broad support, the Freightliner M2 106 is an equally compelling choice.
Final Verdict: Is the 2021 Kenworth 310 a Good Truck?
The 2021 Kenworth T310 is ideal for businesses and fleet operators requiring a versatile, robust, and reliable medium-duty vocational truck. It excels in applications like refuse collection, local delivery, construction, utility services, and other demanding tasks where durability and uptime are paramount. Its customizable chassis allows for various specialized body upfits.
It is definitely worth buying for the right operator. Kenworth's reputation for quality construction, driver comfort, and strong resale value makes it a sound investment. For specific fleet needs requiring the latest technology and full warranty coverage, buying new with tailored specifications is optimal. However, a well-maintained used 2021 T310 can offer significant cost savings, provided a thorough pre-purchase inspection is conducted, focusing on the engine, transmission, frame, and particularly the emissions system. Look for models with comprehensive maintenance records and a known service history. Specific trims or configurations (e.g., PACCAR PX-9 for heavier loads, Allison automatic for urban driving) should align with the intended use case for maximum efficiency and longevity.
It is definitely worth buying for the right operator. Kenworth's reputation for quality construction, driver comfort, and strong resale value makes it a sound investment. For specific fleet needs requiring the latest technology and full warranty coverage, buying new with tailored specifications is optimal. However, a well-maintained used 2021 T310 can offer significant cost savings, provided a thorough pre-purchase inspection is conducted, focusing on the engine, transmission, frame, and particularly the emissions system. Look for models with comprehensive maintenance records and a known service history. Specific trims or configurations (e.g., PACCAR PX-9 for heavier loads, Allison automatic for urban driving) should align with the intended use case for maximum efficiency and longevity.
Jovan
Jovan specializes in interpreting vehicle records and making sense of VIN data. With over 10 years of experience in the automotive data industry, his work ensures that every report is clear, accurate, and useful for car buyers.