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While these caps might not increase your fuel economy or power output, they keep debris out of your fuel and DEF tanks and look good doing it.
Our premium diesel and DEF fill caps for 2019-Current RAMs are machined from 6061 anodized billet aluminum for durability. Beveled edges and large grip make them easy to use even with the biggest hands.
Both caps feature a strong neodymium magnet to conveniently attach them to your fuel door while at the pump. Never lose your cap again!
Just twist to lock them in place. Their included o-rings will prevent dirt, debris, and anything else from falling into your fuel or DEF system.