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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 id10173600
Published by NHTSA2020-04-08
Manufacturer's numberCPI459966
Manufacturer's date2020-03-18
NHTSA componentENGINE AND ENGINE COOLING; EQUIPMENT

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. Submitted in Jan 2020 as a Dec 2019 TSB however C-18 serial numbers have since been added, thus submitting the updated continuous product improvement issue which is published to Cat dealers.

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, Equipment and accessories

Vehicles listed
CATERPILLAR C18

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