Service bulletins for the 2008 Peterbilt 379
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.
18 on file from NHTSA, as of 2026-10-19.
By type
By component
By topic
Only bulletins with component: Engine are shown. Show all
| P001 | 2026-09-29. 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." |
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| 43-067 | 2020-07-03. Service bulletin. STRUCTURE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Fix as Fail: For all conventional models, except 387/587, equipped with Side-of-Cab (“SOC”) exhaust and built from 03/6/2006 to 1/20/2020, the clamps that secure the SOC exhaust stacks may not be tightened properly. This may allow the exhaust stack to rotate and contact the cab or sleeper. |
| 01-075 | 2019-12-04. 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. |
| 608-1 | 2008-11-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. PETERBILT: TRUCKS BUILT WITH CUMMINS ISL ENGINES BETWEEN 1/16/08-6/10/08. DUE TO A MATERIAL ERROR, CERTAIN VEHICLES ORDERED WITH OPTIONAL C-BRAKE BY CUMMINS (OPTION CODE NUMBER 2812140) DID NOT RECEIVE A C-BRAKE ON THE ENGINE. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.