Mopar 52030377AB CAP FUEL FILLER

Replaced the gas cap after the gap had issues sealing and triggering a P0456 code and check engine light.Swapping in this factory gas cap immediately resolved the issue—no leaks, no codes, and the light is off.If you’re dealing with an EVAP leak or a P0456 code, it could be as simple as replacing the gas cap.Good quality and reliable fit.

We were replacing the gas cap because of a warning light. This was exactly the same as the one it came with, fit perfectly and the warning light went off. Works for me. Was cheaper for same part, same manufacturer, from local auto parts stores.

Great fit

Got this for my wife’s ‘13 Jeep Grand Cherokee 5.7. Gas cap had been feeling a little loose when tightening so figured after over a decade of use, it was probably time. Ordered this up, identical replacement to the original I removed. Nice snug fit compared to the original. Paid a little more for a Mopar part, just the way I am.

Fixed P0456 Small leak EVAP code on 2011 Jeep Grand Cherokee 3.6L V-6 Laredo.

My 9 year old jeep kept throwing 'check gas cap' codes and coming loose on its own. So the work on the assorted Wrangler forums was the gas cap should be replaced (preferably with a factory/Mopar unit). So I gave this a try. Easy to swap, arrived quickly -- and most importantly -- solved my problems.

Cleared engine code after two days of driving with new fuel cap

I went through 4 gas caps, and still kept throwing a code for small leak. I replaced the charcoal canister, and the stupid valve under the hood, and honestly thought I was looking at a crack in the vacuum line from the tank to the engine. Nope. All 4 cheap $8 or $9 gas caps were crap. Put this on, and haven't had a single code in a month. I couldn't get seven starts out of the engine before throwing the code after I cleared it with the other caps. And what's super irritating is that all five of these look exactly the same. I cannot visually see a single difference from any of the five of them. The difference is, this one works, the other four didn't. Hey, at least your paying $25 or so on Amazon instead of ridiculous $55 at Jeep. I don't know what's dumber. The fact that Jeep thinks it's acceptable to replace a gas cap every 40,000 miles, or that no one can come close to the super high quality of their subpar gas cap. I dealt with this problem for a year. I can't even tell you how much time I spent dealing with it replacing other parts, research comment all the other stuff. I actually feel like Jeep stole some of my life away. Because their engineering can't figure out how a gas cap works and the best they can do is go, "I guess they'll just have to replace it every 40,000 miles like their tires." Clearly this thing was designed by the same guy who thought putting the alternator in the most impossible area of the vehicle was a good idea.