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Service bulletin CPI459966

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 id10169723
Published by NHTSA2020-01-07
Manufacturer's numberCPI459966
Manufacturer's date2019-12-05
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

C18 Head To Block Joint External Oil leaks. Interim repair procedure is available to dealers subscribing to this product improvement issue until a validated fix is available and published.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
CATERPILLAR C18

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