Engine - Improved Head Gasket
89chevy34Number: 89-283-6A
Section: 6A
Date: December 1989
Corporate Bulletin No.: 836537
Subject: REVISED CYLINDER HEAD GASKET
Model and Year: 1987-89 PASSENGER CARS AND LIGHT DUTY TRUCKS
TO: ALL CHEVROLET DEALERS
THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO. 89-06-6A, DATED SEPTEMBER 1988. THE 4.3L ENGINE APPLICATION AND PART NUMBER HAS BEEN ADDED. ALL COPIES OF 89-06-6A SHOULD BE DISCARDED.
A cylinder head gasket with improved sealing characteristics is now available for service use on all 4.3L, 5.0L and 5.7L engine applications. The applicable part numbers are listed below:
Application Cylinder Head Gasket P/N
4.3L Engines 10105110
5.0L Engines 10105115
5.7L Engines 10105117
These parts are currently available from GMSPO.
When replacing head gaskets on vehicles under warranty, use:
Labor Operation Numbers: J0500 - Right Bank J0501 - Left Bank J0507 - Both Banks
Refer to Labor Time Guide for applicable labor times for various models.