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Service bulletins for the 2008 Mack CHN

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.

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

By type

By component

By trouble code

Bulletins, newest first
SB-26-10182009-05-22. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. MACK TRUCKS: MERITOR WABCO AIR COMPRESSOR, CONVENTIONAL REPAIR FOR CERTAIN AIR COMPRESSOR FAILURES, SUCH AS FAILURE OF COMPRESSOR TO PUMP, SLOW AIR SYSTEM PRESSURE BUILD UP TIME, INTERMITTENT COMPRESSOR PUMPING, ETC, WAS TO REPLACE COMPRESSOR CYLINDER HEAD. MODEL YEARS UNKNOWN. *PE
SB-12-10432009-01-13. Service bulletin. SUSPENSION:REAR; SUSPENSION. MACK TRUCK: SUSPENSION CROSSMEMBERS, PRIMAAX REAR SUSPENSION. MODELS EQUIPPED WITH THE HENDRICKSON PRIMAAX REAR AIR SUSPENSION MAY DEVELOP A CRACK IN THE RADIUS OF THE LOWER END GUSSET. *PE
P-16722008-11-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. EXHAUST ROCKER ARM, COMBUSTION SEALING WASHER AND UNIT INJECTOR YOKE REPLACEMENT. *PE
SB-1210422008-09-13. Service bulletin. STRUCTURE:FRAME AND MEMBERS. MACK TRUCK: CRACKS IN UPPER FRAME FLANGE AT STEERING GEAR CUT-OUT - ALL CHN MODELS. (NOT APPLICABLE TO MACK TRUCKS AUSTRALIA). *PE
SB2340192008-06-11. Service bulletin. STEERING:LINKAGES:TIE ROD ASSEMBLY. MACK TRUCKS - EXHAUST TIE ROD MOUNTING BRACKET--CXN AND CHN MODELS (MODEL YEAR UNKNOWN). *NJ

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