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Service bulletin 19W018

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 id46423
Published by NHTSA1996-04-25
Manufacturer's number19W018
Manufacturer's date1995-07-01
Replaces19W018
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

COMPONENT MANUFACTURING VARIABLES MAY ALLOW EXCESSIVE CLEARENCE BETWEEN THE REFRIGERANT COMPRESSOR MOUNTING EARS AND THE BRACKET MATING SURFASES. THIS EXCESSIVE CLEARANCE CAN CAUSE THE EARS ON THE CAST ALUMINUM COMPRESSOR TO CRACK WHEN THE MOUNTING BOLTS ARE TIGHTENED.TOTAL CLEARANCE BETWEEN THE TWO COMPONENT MATING SURFACES DOES NOT EXCEES .016 INCH (ADD GAP AT BOTH ENDS OF BRACKET). IF EXCESSIVE GAP DOES EXIST, OBTAIN SHIMS LOCALLY AND INSTALL AS REQUIRED.

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
MACK MACK

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