DEF FILL CAP - BLUE ALUMINUM ('13-'22, 2500/3500)

Item #: LT-DEF-CAP
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Due to a supplier change, this item is temporarily not available to purchase. Please check back with us. We will update the website as soon as parts become available. Thank you.

This blue anodized billet aluminum dust cap for '13-'22 Ram Turbo Diesel 2500/3500 pickup trucks has DEF engraved into the cap and has two external O-rings that slide into the Diesel Exhaust Fluid neck. The cap can be attached to the original DEF cap tether for 2013 to 2022 model trucks.

Complements the green aluminum fuel fill cap. Get both for your truck!


Write a review
Feb 7, 2016  |  By AJ Bimrose
DEF cap looks great! Easy to install using the factory tether.

Jan 31, 2017  |  By Sheldon
Excellent fit and looks stylish! Real Quality piece fits great!

Blue Aluminum DEF cap
Jun 24, 2017  |  By Corbin Sterle
The longevity of my Ram 2500 will now be a little more ensured with the new aluminum DEF cap installed. I won't have to worry about contaminants entering the system, as well as the plastic cap disintegrating soon. Plus it looks very sharp and clean.

Jul 19, 2017  |  By Denise Moitoza
After being utterly shocked that buying a brand new Dodge truck does not get you a fuel tank or DEF tank cap I found that Genos Garage sold them. These are really nice and high quality. Don't be fooled by other cheaper versions THEY DON'T FIT PROPERLY! These fit properly and look nice.

Nice Upgrade
Nov 3, 2017  |  By Mike
Nice upgrade and good fitment.

aluminum DEF cap
Dec 7, 2017  |  By sam greenberg
Fits perfectly and being color coded is helpful.

Blue DEF Cap
Mar 5, 2020  |  By Tim H.
Great product , fits snug

Install and Tech Information