NEW 26400 Isolation Module 4 Port Western Fisher Truck Side Light Harness

These are no longer available from Fisher and Western. When these are gone you will have to convert to 3 port, so get these while you still can. 

A New 4 Port Isolation Module (part #26400) for Western and Fisher. There is also a different module for certain trucks with DRL lights. These modules rarely go bad, so check your wiring first.

This module will come in a sealed bag and once opened it cannot be returned.

There are three different 4-port modules and several different 3-port modules.

The newer version is a 3-port, but you would need a different light harness to use that.

On the label they say "PH F 26400 W 26385 PN 26134".

Click here to use the Western Power Match to get the correct light harness.

Here is a link to the Western Wiring Schematics Guide.