Fits 2500/3500 GM/CHEV HD Diesel, even 2024 and 2025 models. This is NOT compatible with the 1500 trucks. If the diesel filler is "capless", this set is NOT compatible with your truck.
The original Spin-Loc design for GM/CHEV was not compatible with the newer GM/CHEV trucks. We have since redesigned the body style of the Spin-Loc and it is now compatible with the Capless Diesel GM/CHEV trucks to the 2024 model year.
Get a deal by buying both an Loc-Sure and a Spin-Loc at the same time! Each combo purchase comes with the Loc-Sure cap, the Spin-Loc cap and one pair of Secure Keys with complimentary stainless steel key ring. Both caps have natural venting.
Additional keys can be purchased using the information from our Secure Keys page.
2020-2024 GM/Chevy HD 2500/3500 Diesel/DEF Combo
Rating is 4.8 out of five stars based on 4 reviews
$170.00Price
Reviews
We lock everything from our homes second story windows to our vehicles wheels with locking lugs, but we don’t lock our fuel doors? These guys fix this, product is really nicely made and looks to be able to last the life of the vehicle. I’m sure there isn’t any change from 2024 to 2025 gm diesels but because the description says to 2024 I’ll say it does fit 2025. Fits on pickup bed style fuel doors without modifications you just can’t use the factory lanyard, don’t forget it on the bed rail.
Both caps (Diesel & DEF) lock properly and should be sufficient to discourage your average ill meaning intentional low life.
I got these caps to prevent tampering or accidental contamination (gas in diesel). They are heavy duty, and look really nice on the truck. I have traveled all over the US with these and never had an issue. The customer service for this product is top notch.
It does the job. Heavy, good or bad? No way to hang it, so don't be in a hurry and leave the caps at the gas station. Because they are crazy expensive.