Radiator Fitting Washers for Aftermarket Allison Transmission Cooler Lines Pair

When building your own transmission cooler lines for your 6.6l Duramax / Allison equipped truck these washers are a necessity.

They slip over the fittings threads and hold the transmission cooler in place inside the end tank on the radiator. Their thin construction allows the o-ring fitting to seal without the washer interfering.

Washers sold as a pair.

For use on 2001-2016 6.6l Duramax & 8.1l Applications