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Service bulletin 508-1

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 id10025323
Published by NHTSA2008-07-29
Manufacturer's number508-1
Manufacturer's date2008-06-27
NHTSA componentPOWER TRAIN:AXLE ASSEMBLY

NHTSA's summary

PETERBILT SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. 508-1 DANA D46-170P AXLE HOUSING THICKNESS. THIS FIELD REPAIR NOTICE IS APPLICABLE TO PETERBILT VEHICLES WITH A DANA D46-170P REAR AXLE. MODEL VEHICLES AND MODEL YEARS UNKNOWN. CSC WAS RECEIVED. *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

Transmission and driveline, Axle

Vehicles listed
PETERBILT PETERBILT

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