2025 Kenworth T800 problems, complaints & recalls
Safety recalls (1)
Fuel System, Diesel:delivery:fuel Pump 2024-10-23 · campaign 24V789000 · 5,690 vehicles
Defect: 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.
Fix: 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.
Service bulletins (11)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-10-13 · 42-070 · Service Bulletin/Repair Instructions
due to supplier constraints, an authorized aftermarket surge tank has been made available.
Engine 2026-09-11 · P001 · Service Bulletin/Repair Instructions
"kenworth: dealers should check the chassis list and sir weekly for vin changes. 2 chassis added to the chassis list. peterbilt: dealers should check the chassis list and sir weekly for vin changes. 10 chassis added to the chassis list."
Forward Collision Avoidance: Warnings 2026-08-13 · 24KWL/PBL · Service Bulletin/Repair Instructions
the verbiage in the introduction section has been updated.
Unknown Or Other 2026-04-28 · 43-087 · Service Bulletin/Repair Instructions
(kw) certain t680 / t800 / t880 / w900 / w990 have updated ghg labels available for order and installation. (pb) certain model 367 / 389 / 567 / 579 / 589 have updated ghg labels available for order and installation.
Engine 2026-04-17 · 45-070 · Service Bulletin/Repair Instructions
the attached procedures document has been updated with more detail and explanations. this is not a stand-alone procedure. cummins quickserve troubleshooting will specify the use of these procedures while troubleshooting specific fault codes.
Unknown Or Other 2026-04-16 · 14-034 · Service Bulletin/Repair Instructions
bogie crossmember torque value update - procedure has been updated to correct torque values.
Showing the 6 most recent of 11 bulletins. Search all of them free at nhtsa.gov.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.