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Service bulletins for the 2004 Western Star 4900

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.

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

By type

By component

Only bulletins with component: Body and frame are shown. Show all

Bulletins, newest first
sbw83292018-10-29. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; STRUCTURE:FRAME AND MEMBERS. In some operating conditions, water may leak into the cab onto the passenger floor through the HVAC fresh air intake on the frontwall on 47,00,4900, and 5700 models.
sbw98012018-06-11. Service bulletin. STRUCTURE. sbw9801 Paint Finish Standards
sbw32152018-03-13. Service bulletin. STRUCTURE. Some vehicles may have been incorrectly shimmed at the factory, and may lean slightly to the right or left. While this does not affect the operation of the vehicle, it may be visually unpleasing to many customers.
Body SRT2018-01-05. Service bulletin. STRUCTURE:BODY. Body SRT Updates -2012.12.12
12-0402018-01-05. Service bulletin. STRUCTURE:BODY. 12-040-DLR Roof Fairing Removal Program
SB-88-112009-10-14. Service bulletin. STRUCTURE:BODY:HOOD. WESTERN STAR TRUCK: SOME TRUCKS (4900FA, 123BBC) WITH HOOD SALES CODE 644-002, MAY DEVELOP CRACKS AT THE INNER FENDER, NEAR THE NUTPLATE FOR THE HOOD GUIDE. THE STEEL PIVOT STRUCTURE CAN ALSO CRACK, OUTBOARD OF THE HOOD PIVOT CLEVIS. NO MODEL YEARS LISTED. *PE

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