Service bulletins for the 2003 Peterbilt 387
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." |
|---|---|
| 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. |
| 1003 | 2004-03-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. PRODUCT IMPROVEMENT TO REDUCE INSTANCES OF FAILURE OF TURBO EXHAUST PIPE FLANGES. THIS BULLETIN CONTAINS THE PROCEDURE FOR IMPROVING A MODEL 387 ISX ENGINE EXHAUST INSTALLATION. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.