# Service bulletins for the 1998 Western Star 4800

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.

3 bulletins from NHTSA, as of 2026-10-19.

- [sbw0014](/bulletins/10151512.md), 2018-12-10, Service bulletin: EQUIPMENT. Operating Hours for the Customer Assistance Center
- [SB\-49\-12](/bulletins/10044353.md), 2012-06-14, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL. WESTERN STAR: AROUND THE DIESEL EXHAUST FLUID \(DEF\) AN EXCESSIVE AMOUNT OF CRYSTAL OR POWDER BUILT UP INDICATES A LEAK CAUSED BY EVAPORATION OF DEF EXPOSED TO AIR AND/OR DAMPNESS. \*PE
- [35\-7](/bulletins/10043820.md), 2012-04-27, Service bulletin: SUSPENSION:FRONT:WHEEL BEARING; SUSPENSION:MULTIPLE AXLE; POWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING. WESTERN STAR: LUBRICATE WHEEL BEARINGS, REAR DRIVE AXLES. \*JS

JSON: [/v1/vehicles/1998_western-star_4800/bulletins](/v1/vehicles/1998_western-star_4800/bulletins)

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