GM Service Manual Online
For 1990-2009 cars only

Info - Use of Dielectric Lubricant to Prevent Water/Moisture Intrusion Into Wiring Connectors

Subject:Use of Dielectric Lubricant to Prevent Water/Moisture Intrusion into Wiring Connectors

Models:2007 and Prior Chevrolet W-Series Medium Duty Tilt Cab Models
2007 and Prior GMC W-Series Medium Duty Tilt Cab Models
2007 and Prior Isuzu N-Series Commercial Models



This bulletin is being revised to add the 2007 model year. Please discard Corporate Bulletin Number 05-00-90-007 (Section 00 -- General Information).


In order to minimize water/moisture intrusion, Isuzu recommends applying Dielectric lubricant into exterior harness connectors.

After any inspection or repair to a harness connector, you should apply this lubricant to aid in preventing possible future corrosion to the connector pins and terminals.

This step is only recommended for engine and chassis harness connectors that are directly exposed to the outside environment. Connectors located inside the passenger compartment do not require this added protection.

Parts Information

For Chevrolet and GMC Models

 

Part Number

Description

12345579

(in Canada, 10953481)

Lubricant, Dielectric Silicone

For Isuzu Models

 

Part Number

Description

8-12345-579-0

Lubricant, Dielectric Silicone

Parts are to be obtained from AIPDN.