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Service bulletins for the 2006 Kenworth T300

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

16 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
P0012026-09-29. Service bulletin. ENGINE. "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."
01-0752019-12-04. Service bulletin. ENGINE AND ENGINE COOLING. Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
TIB-45-362009-09-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THIS IS A FIELD CAMPAIGN TO MODIFY THE TURBOCHARGER OIL DRAIN PLUMBING. MODEL T300, MY 12/13/06-07/09/08. CSC LETTER REC'D. *PE
TIB-45-352009-03-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. KENWORTH TRUCKS: PX-8 AND CUMMINS ISL ENGINE CALIBRATION CAMPAIGN C0844. UPGRADE ENGINE CONTROL SOFTWARE FOR PACCAR PX 8 AND CUMMINS ISL ENGINES TO ENHANCE PERFORMANCE AND RELIABILITY. *PE
TIB-44-172009-01-28. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. KENWORTH TRUCKS: REDUCED ENGINE POWER FROM FUEL STARVATION. ANY MODEL KENWORTH EQUIPPED WITH THE 2007 EMISSIONS COMPLIANT ISX ENGINE AND OPTIONAL DAVCO 382 FUEL FILTER, BUILT PRIOR TO 8/11/08, *PE
41-92008-11-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. KENWORTH: THE ORIGINAL PUBLICATION IDENTIFIED CHASSIS WITH PX-8 ENGINES ONLY. PX-8 AND ISC ENGINES-ENGINE WARNING LIGHT ON. *PE
41-102008-07-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. RACOR HEAVY DUTY AIR INTAKE FILTER CAMPAIGN. 201 T300S ORDERED WITH SALES CODE 1081300 AND BUILT BETWEEN 01/02/06-12/03/07. *PE
45302007-09-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. COLLECTION OF DPF AND ENGINE PART/SERIAL NUMBERS COMAPAIGN. *KB

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.