The 4JB1 clutch slave cylinder can be rebuilt using the kit for the 4ZE1 (gasoline) engine - I ordered the kit for a 1988 Trooper.

The piston is the same, but the diesel spring is heavier so I reused it. The aftermarket rubber boot fit, too.

The issue is that the castings are different. Innards are mostly the same.


1988 Isuzu Trooper LS
2.8l Isuzu 4JB1-TC intercooled turbo diesel
www.dieseltrooper.blogspot.com