M35A3 Non-Vented 4" Locking Fuel Cap
With today's fuel prices it's more important than ever to protect your investment. This 4" locking diesel fuel cap will stop them in their tracks. If you have an M35A3 or have added the A3 aluminum fuel tank to your M35A2 Deuce and a half you need this locking cap. Can easily be used with the existing screen and check rod current in your aluminum A3 tank. This cap is the correct Non-Vented design that works properly with the factory remote vent lines of the M35A2 and M35A3 trucks.
Works on all 4" tank necks with 8-NPSL threads.
Note 1: Not for use on stock M35A2 tanks. The A2 tanks have a completely different neck and cap design.
Note 2: Key must be left in the "unlocked" position while removing the cap. The key can then be removed and the spring loaded locking assembly allows the cap to be reinstalled without the key.
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