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Service bulletins for the 1998 Mack CH

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.

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

By type

By component

By trouble code

Bulletins, newest first
04B0151999-02-19. Service bulletin. STRUCTURE:FRAME AND MEMBERS. SUBJECT ON HEAVY -DUTY 44,000-LB TRUNNION BRACKET. *YC

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