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Service bulletin SB531008

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 id621749
Published by NHTSA2001-10-01
Manufacturer's numberSB531008
Manufacturer's date2001-06-22
NHTSA componentSERVICE BRAKES, AIR

NHTSA's summary

SUBJECT REGARDING BACK PRESSURE CONTROL VALVE TAP-IN POINT. *TT

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
MACK CH
MACK CL
MACK CX

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