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View All DEF Tank Locking Caps

30001L HD Locking DEF CAP

Product # 74100702

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.

  • Product Details
    Part # 30001L
    Product # 74100702
    Description 30001L HD Locking DEF CAP
    UPC 770075714477
    Type DEF Locking Cap
    Cam Type Quick-On
    Locking false
    Venting Vented
    Shell Diameter 3.54 in
    Neck Diameter 2.36 in
    Cap Depth 1 in
  • Packaging details
    Customer Pack 1
    Weight (lbs.) 0.451
  • Fits models

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.