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Service bulletin T431006

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 id39535
Published by NHTSA1995-11-01
Manufacturer's numberT431006
Manufacturer's date1993-06-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:MANUAL TRANSMISSION

NHTSA's summary

NEW DESIGN INHIBITOR VALVE. *TW

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

Engine, Transmission and driveline, Manual transmission

Vehicles listed
DETROIT DIESEL DETROIT1995
WHITE GMC WHITE GMC1993

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