ACDelco 12F20L Professional Locking Fuel Tank Cap

The ACDelco Professional, premium aftermarket Locking Fuel Cap is a threaded cap that seals your vehicle’s fuel tank filler, and is the high quality replacement ideal for many vehicles on the road today. This premium aftermarket replacement locking fuel cap is manufactured to meet your expectations for fit, form, and function.

Product Features

  • Engineered to provide a tight seal for your vehicle’s fuel tank with the added benefit of a lock to deter fuel theft
  • Professional, premium aftermarket replacement fuel cap
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function

3 thoughts on “ACDelco 12F20L Professional Locking Fuel Tank Cap”

  1. Do not buy after market gas cap!!! Although the item description said it was compatible with my car, it caused the engine light to come on in less than 5 miles. Put the old cap on and it did not cause the engine light to go off. Auto shop ran computer diagnostics, which indicated the Delco cap was the issue and reset the engine light. $80 for the diagnostics, so I’m not happy with this product or the seller!!!!

  2. Made-to-Fail This unit, like all locking gas caps seem to be, is clumsy to use. Worse, I dropped this once and the tumbler popped out of it. This does not inspire the confidence that this unit can function as described.This means a thief or vandal could pop that tumbler out easy as can be with a small screwdriver or most any pointed implement. .Most plastic toys are far more durable than this made-to-fail gas cap.This must be yet another substandard Chinese knockoff.

  3. Check engine light came on for new 4Runner This review doesn’t add anything that other reviewers haven’t already pointed out but – since I didn’t see them before I bought this I thought it would be useful to add one more. Bought a new 4Runner and immediately looked for a compatible locking gas cap. I had no trouble with that with my old 1999 4Runner but these newer models are really picky about emission leaks. It worked fine at first. It seemed to fit snugly but then I filled up the tank and the next morning the check engine light came…

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