RKX Gas cap seal for GM 20915842 / GT330 / GT261 OEM Gas Cap
Made from high quality nitrile rubber
This is a common failure point that can cause check engine lights for evap leaks and other faults.
Common fault codes are P0440 / 16824, P0456 / 16840, P0442 / 16826, P0455 / 16839.
Don't settle for aftermarket caps that cause more problems than they solve!
Reseal your factory cap!
Please study pictures carefully!
GM / ACDelco 20915842 / GT330 OEM gas cap
Advantages of replacing just the gas cap seal:
- More affordable
- Retain high quality OE cap with theater
- Avoid gas cap warning lights from using aftermarket caps