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Service bulletin SC-335

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10032344
Published by NHTSA2010-03-10
Manufacturer's numberSC-335
Manufacturer's date2008-01-11
NHTSA componentSERVICE BRAKES, AIR:SUPPLY:CHECK VALVE

NHTSA's summary

MACK TRUCKS: INTERNAL CHECK VALVE AND SUPPLY PORT CHECK VALVE REPLACEMENT - BENDIX SR-7 SPRING BRAKE MODULATING RELAY VALVE. MODELS CXU, CXP, CXN, CHU, CHN, GU, CTP, CT, CV, MRU AND LEU BETWEEN 11/4/05-5/1/07. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Brakes

Vehicles listed
BENDIX SR-7

Listing a model year does not mean every vehicle of it is concerned: the document says which.