Isuzu
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Keep your 4JJ3 injectors sealing correctly with these Genuine Isuzu injector seat washers. These copper seat washers locate between the injector tip and the cylinder head, providing a critical combustion seal — a worn or incorrect washer leads to injector rattle, combustion blow-by, and poor sealing that no amount of retorquing will fix.
This is a full engine set of 4 washers, sourced genuine Isuzu, not aftermarket substitutes.
Isuzu 4JJ3 engine
Express shipping included Australia-wide.
