DEF Tank Locking Caps

As little as .169 ounces/5ml of diesel or other fluids in a DEF or AdBlue Reservoir can cost thousands of dollars in aggravating service repairs.Stops contamination and costly engine repairs.Prevents sabotage, theft, and/or cross contamination.Free spins when locked.

All Parts

1-2 of 2 Items
Part # Product # Description Type Cam Type Locking Venting Shell Diameter Neck Diameter Cap Depth
30001L 74100702 30001L HD Locking DEF CAP DEF Locking Cap Quick-On false Vented 3.54 in 2.36 in 1 in
30002L 74100704 30002L HD Locking DEF CAP DEF Locking Cap Quick-On false Vented 2.56 in 1.57 in 0.67 in
1-2 of 2 Items

Blue caps easily identify DEF tank filler neck, and are easily distinguished from other vehiclle tanks. Features a locking mechanism to prevent theft, vanadalism, or accidental incorrect fluid fills.