WenmarOpen by Wenmar Pro

Service bulletin M009938504

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 id10169719
Published by NHTSA2020-01-07
Manufacturer's numberM009938504
Manufacturer's date2019-12-17
NHTSA componentENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT

NHTSA's summary

An Improved Oil Filler Cap is Available for Certain Caterpillar Engines. The improved oil filler cap offers an improved rubber plug design.

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 CATERPILLAR

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