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The Good
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The Bad
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2021 Kenworth T680: Quick Overview
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2021 Kenworth T680 Specifications
Vehicle Information
| Year | 2021 |
| Make | Kenworth |
| Model | T680 |
| 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 I6 |
| 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 | - |
Vehicle History Report
Vehicle
Specifications
Specifications
Ownership
History
History
All History
Events
Events
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Past Sale
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Recalls
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Analysis
Analysis
What Problems Does the 2021 Kenworth T680 Have?
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How long will the 2021 Kenworth T680 last?
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What Technology & Safety Features are Included?
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What Colors Options are Available?
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2021 Kenworth T680 Prices and Market Value
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2021 Kenworth T680 Cost of Ownership
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2021 Kenworth T680 Fuel Efficiency
Fuel Type
Diesel
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2021 Kenworth T680 Recalls & Defects
Service Brakes, Air:antilock
Recall date
2020-09-28
Recall no.
20v593000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain 2016-2021 Kenworth T680 Trucks Equipped With A 2.1m Cab and Wabco 6s/6m ABS Brake System With Drum Brakes. THE Brake Systems Were Manufactured With A Standard Rear-Brake ABS Modulator Valve Instead OF A Quick Release Valve, Which MAY Exceed THE Intended Service-brake Release Timing. AS Such, These Vehicles Fail TO Comply With THE Requirements OF Federal Motor Vehicle Safety Standard Number 121, "air Brake Systems."
Consequence
Longer Than Expected Service-Brake Release Timing MAY Lengthen Vehicle Stopping Distance, Increasing THE Risk OF A Crash.
Remedy
Paccar Will Notify Owners, and Dealers Will Replace THE Standard Rear-Brake, ABS Modulator Valve With A Quick Release Valve, Free OF Charge. THE Recall Began November 30, 2020. Owners MAY Contact Paccar Customer Service AT 1-425-828-5888. Paccar's Number FOR This Recall IS 20kwd.
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.
Electrical System:wiring
Recall date
2021-12-29
Recall no.
21v00n000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain 2016-2022 Peterbilt 567, 579, 2021-2022 Peterbilt 536, 2017-2021 Kenworth T880, 2016-2022 Kenworth T680, 2018-2020 Kenworth T440, 2020 Kenworth T270, and 2021 Kenworth T280 Vehicles. THE Methane Detection System Will NOT Function IF THE System Loses Power.
Consequence
THE Operator MAY BE Unaware OF A System Malfunction or THE Presence OF Excessive Methane Levels, Increasing THE Risk OF Injury or Fire.
Remedy
Dealers Will Re-Wire THE Warning Alarm, Free OF Charge. Owner Notification Letters Were Mailed December 1, 2022. Owners MAY Contact Peterbilt Customer Service AT 1-940-591-4220, and Kenworth Customer Service AT 1-425-828-5888. Paccar's Numbers FOR This Recall ARE 21kwh and 21pbn.
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.
Engine
Recall date
2021-02-17
Recall no.
21v080000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain 2021-2022 Kenworth T680, T880, W990, T800, W900 and Peterbilt 579, 567, 389, 367 Vehicles Equipped With A Cummins X15 Engine. THE Capscrews That Attach THE Flywheel TO THE Crankshaft MAY Have Been Improperly Torqued, Allowing THE Flywheel TO Detach.
Consequence
A Detached Flywheel CAN Cause Loss OF Drive Power, Increasing THE Risk OF A Crash. Additionally, Driveline Pieces MAY BE Ejected From THE Engine Compartment, Increasing THE Risk OF Injury.
Remedy
Paccar Will Notify Owners, and Dealers Will Properly Torque THE Capscrews and THE Engine Will Also BE Inspected FOR Damage And, IF Necessary, Repaired, Free OF Charge. THE Recall Began ON March 29, 2021. Owners MAY Contact Paccar Customer Service AT 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). Paccar's Numbers FOR This Recall ARE 21kwa and 21pbb.
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.
Power Train:automatic Transmission:lever and Linkage:column Shift
Recall date
2024-03-20
Recall no.
24v190000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain 2021-2024 Peterbilt 365, 367, 389, 535, 536, 537, 548, 567, 579, and 2021-2025 Kenworth T180, T280, T380, T480, T680, T880 and W990 Trucks. THE Right-hand Gear Shifter Stalk Connectors MAY Have Been Improperly Crimped, Resulting IN A Loss OF Communication.
Consequence
A Loss OF Communication Between THE Gear Shifter and THE Transmission MAY Result IN THE Vehicle Becoming Disabled After Coming TO A Stop, Increasing THE Risk OF A Crash.
Remedy
Dealers Will Inspect and Replace THE Gear Shifter Assembly AS Necessary, Free OF Charge. Owner Letters Were Mailed December 15, 2025, Then Phased After That. Owners MAY Contact Kenworth Customer Service AT 1-425-828-5888 or Peterbilt Customer Service AT 1-940-591-4220. Paccar's Numbers FOR This Recall ARE 24pbe and 24kwe.
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.
Electrical System:software
Recall date
2024-12-09
Recall no.
24v915000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain 2021-2025 Peterbilt and Kenworth Vehicles, Equipped With Bendix Ec80 Advanced Electronic Control Units (Ecu). Please SEE THE Recall Report FOR A Complete List OF Models. Electrical Noise and Low Signal TO THE Power Line Carrier MAY Cause THE ECU TO Incorrectly Process Commands or Stop Functioning.
Consequence
Safety Systems That Depend ON THE ECU (Automatic Traction Control, Abs, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) MAY NOT Function Properly or AT All, Increasing THE Risk OF A Crash.
Remedy
Dealers Will Reprogram THE ECU Software, Free OF Charge. Owner Notification Letters Were Mailed February 3, 2025. Owners MAY Contact Kenworth's Customer Service AT 1-425-828-5888 and Peterbilt's Customer Service AT 1-940-591-4220. Paccar's Numbers FOR This Recall ARE 24kwl and 24pbl.
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 Nhtsa.gov.
Service Brakes, Hydraulic:antilock/Traction Control/Electronic Limited Slip:control Unit/module
Recall date
2024-12-09
Recall no.
24v915000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain 2021-2025 Peterbilt and Kenworth Vehicles, Equipped With Bendix Ec80 Advanced Electronic Control Units (Ecu). Please SEE THE Recall Report FOR A Complete List OF Models. Electrical Noise and Low Signal TO THE Power Line Carrier MAY Cause THE ECU TO Incorrectly Process Commands or Stop Functioning.
Consequence
Safety Systems That Depend ON THE ECU (Automatic Traction Control, Abs, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) MAY NOT Function Properly or AT All, Increasing THE Risk OF A Crash.
Remedy
Dealers Will Reprogram THE ECU Software, Free OF Charge. Owner Notification Letters Were Mailed February 3, 2025. Owners MAY Contact Kenworth's Customer Service AT 1-425-828-5888 and Peterbilt's Customer Service AT 1-940-591-4220. Paccar's Numbers FOR This Recall ARE 24kwl and 24pbl.
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 Nhtsa.gov.
Electrical System:propulsion System
Recall date
2025-03-24
Recall no.
25v181000
Source
NHTSA
Summary
Paccar Incorporated (Paccar) IS Recalling Certain 2022-2025 Peterbilt 520, 579, and 2021-2025 Kenworth T680 Trucks. THE High Voltage (Hv) Contactors MAY Open, Causing A Sudden Loss OF High Voltage and A Loss OF Drive Power.
Consequence
A Loss OF Drive Power Increases THE Risk OF A Crash.
Remedy
Dealers Will Update THE Software and Replace THE Electrical Harness, Free OF Charge. Owner Notification Letters Were Mailed MAY 13, 2025. Owners MAY Contact Peterbilt's Customer Service AT 1-940-591-4220 and Kenworth's Customer Service AT 1-425-828-5888. Paccar's Numbers FOR This Recall ARE 25pbc and 25kwc.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 888-327-4236 (Tty 888-275-9171) or GO TO Nhtsa.gov.
2021 Kenworth T680 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 T680 Insurance
Insurance for a 2021 Kenworth T680 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 T680 Compare to Other Truck?
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Final Verdict: Is the 2021 Kenworth T680 a Good Truck?
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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.