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Service bulletin PI-31768

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 id10034050
Published by NHTSA2010-10-13
Manufacturer's numberPI-31768
Manufacturer's date2010-07-08
NHTSA componentPOWER TRAIN:MANUAL TRANSMISSION

NHTSA's summary

AMERICAN CATERPILLAR/CATERPILLAR SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. PRODUCT IMPROVEMENT PROGRAM FOR REWORKING TRAIN 3 PLANET CARRIER AND SHAFTS ON CERTAIN CX31 RETARDER TRANSMISSIONS. THE TRAIN 3 PLANET CARRIER AND SHAFTS NEED TO BE UPDATED ON CERTAIN CX31 RETARDER TRANSMISSIONS DUE TO PREMATURE FAILURE. THIS REWORK WILL INCREASE THE LUBE TO THE PLANETARY. CSC LETTER WAS REC'D. *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, Manual transmission

Vehicles listed
AMERICAN CATERPILLAR AMERICAN CATERPILLAR
CATERPILLAR CATERPILLAR

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