Leak Defender® for Macks



2-PC. Fuel Tank Neck Repair/Replacement System Consisting of a New and Improved Fuel Neck + Fuel Cap. Designed to Stop Fuel Cap Leaks on Mack Trucks w/ 3″ Fuel Filler Neck. 100% Money Back Guaranteed!

NOTE: Sold Individually, Not as a Pair. Fits on Mack Trucks w/ 3″ Fuel Filler Neck (Approx. 2010 & Newer). If You Have an Older Mack w/ a 3.5″ Fuel Filler Neck (Approx. 2009 & Older), Purchase the Leak Defender® for Internationals.

🎥 Check Out How to Easily & Quickly Install the Leak Defender® Here.

Ordering 10+ Units? Contact Us About Our Bulk Discounts