AIR CLEANER CANISTER GASKET FOR M809 AND M939 SERIES 5 TON TRUCKS. THIS IS THE SEAL THAT IS BETWEEN THE 2 HALVES OF YOUR AIR CLEANER CANISTER.

A LEAK IN THIS AREA CAN ALLOW RAIN WATER IN, OR CAUSE YOU TO TAKE ON WATER AND DO DAMAGE TO YOUR ENGINE DURING DEEP WATER CROSSINGS.

PART # 11604520-5 NSN 5330-00-432-2142, 5330004322142, P10-9979