The worst 2025 Kenworth T800 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 1
Fuel system, diesel: delivery: fuel pump
- What is wrong
- PACCAR Incorporated (PACCAR) is recalling certain 2025 Kenworth C500, T680, T800, T880, W900, W990, Peterbilt 567, 579, and 589 trucks, equipped with Cummins X15 diesel engines. The fuel pump barrels may fracture and cause a fuel leak, which can result in an engine stall.
- Risk
- An engine stall increases the risk of a crash.
- Remedy
- Dealers will replace the fuel pump barrels, free of charge. Owner notification letters were mailed November 15, 2024. Owners may contact Kenworth's customer service at 1‑425‑828‑5888 and Peterbilt's customer service at 1‑940‑591‑4220. Owners may also contact Cummins Customer Service at 812‑377‑5000. PACCAR's numbers for this recall are 24KWH and 24PBH.
Recall number 24V789000 · Recall details
Technical service bulletins for the 2025 Kenworth T800 11
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Due to supplier constraints, an authorized aftermarket surge tank has been made available.
- Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes
- The verbiage in the Introduction section has been updated.
- (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation
- The attached procedures document has been updated with more detail and explanations
- Bogie Crossmember Torque Value Update
- EMY21-25 ghg
- Procedure pictures updated for clarity
- Safety Recall Parts and procedures are now available
- PACCAR 20k Steer Axle Steer Arm and Tie Rod Arm Bolt Torque Interim Safety Recall Certain Kenworth model...
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Questions about the 2025 Kenworth T800
Is the 2025 Kenworth T800 reliable?
Owners have filed 0 complaints about the 2025 Kenworth T800.
What is the most common problem with the 2025 Kenworth T800?
There are not enough complaints to tell.
How many recalls does the 2025 Kenworth T800 have?
1 recall, covering fuel system, diesel.
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