2004 Kenworth T300, 2004 Peterbilt 330 Recall: ON CERTAIN TRUCKS BUILT WITH CUMMINS ISC AND ISL ENGINES, PLUGS WERE…
NHTSA campaign 04V406000 · Engine and Engine Cooling · filed Aug 17, 2004 · verified Jul 30, 2026
The defect
ON CERTAIN TRUCKS BUILT WITH CUMMINS ISC AND ISL ENGINES, PLUGS WERE ASSEMBLED INCORRECTLY CREATING STRESS AND CRACKS WHICH COULD CAUSE AN OIL LEAK.
The risk
THIS OIL LEAKAGE HAS THE POTENTIAL TO IGNITE AND CAUSE A FIRE IN THE ENGINE COMPARTMENT OF THE VEHICLE.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
CUMMINS WILL NOTIFY OWNERS AND ARRANGE FOR INSTALLATION OF A STEEL CUP PLUG BOSS CAP. OWNERS SHOULD CONTACT CUMMINS AT 1-800-343-7357.
KENWORTH RECALL NO. 04KW4 & PETERBILT RECALL NO. 804-D.CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
Affected vehicles
Related recalls
More Kenworth T300 recalls
- 2008–2010 Kenworth T270 and 6 other models — Engine and Engine Cooling
- 2007–2008 Kenworth T270 and 2 other models — Fuel System, Other
- 2008 Kenworth C500 and 14 other models — Latches/locks/linkages
- 2008 Kenworth 953 and 20 other models — CERTAIN TRUCKS EQUIPPED WITH EATON SYNFLEX ECLIPSE BRAND…
- 2006–2008 Kenworth T300 — ON CERTAIN TRUCKS EQUIPPED WITH CUMMINS ISC OR PACCAR PX8…
Other campaigns involving Kenworth vehicles
Source: NHTSA recall database, campaign 04V406000 (manufacturer number 04KW4 & 804-D). Data last verified Jul 30, 2026.