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Service bulletin 107

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 id600548
Published by NHTSA1998-05-20
Manufacturer's number107
Manufacturer's date1998-03-24
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

IDENTIFYING ALL FIELD SERVICE UNITS USING THE 031-3305 PILOT OPERATED CHECK VALVE THAT HAS AN INCORRECT VALVE SPRING IN THE VALVE ASSEMBLY. *YC

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

Engine

Vehicles listed
HEIL HEIL

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