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RKX Gas Cap replacement Seal FOR Mazda

RKX Gas Cap replacement Seal FOR Mazda


RKX Replacement gas cap seal

Compatible with OEM Mazda gas cap part numbers: GS3L-42-250B, FE02-42-250B, BNYF-42-250 and all superseded part numbers 

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! Please note that we guarantee our parts to work as designed we do not guarantee them to fix your specific problem. Proper diagnosis is always required! 

Advantages of replacing just the gas cap seal:

- More affordable

- Retain high quality OE cap with tether

- Avoid gas cap warning lights from using aftermarket caps


- Gas Cap seal 
(gas cap pictured is for reference only and not included)


Will fit most 2004 and newer Mazda vehicles with gas caps that look visually similar to the ones in the photos.
Please check your gas cap before ordering.  

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