Motorad Fuel Tank Cap P/N:MGC930T
The Motorad MGC40 fuel tank cap for the 1958-1963 Chevrolet Impala 3.8L / 4.6L and other vehicles is a non-locking, vented cap that closes the fuel tank and helps keep fuel vapor from escaping.
A fuel smell around the filler, a cap that won't twist on snugly, or cracks in the cap can mean it is no longer sealing. A leaking fuel line can also leave a fuel smell, so find the source before you replace the cap.
The 1958-1963 Chevrolet Impala 3.8L / 4.6L and the 1969-1971 Jaguar XKE 4.2L each take one, and this direct-fit cap also fits many Chevrolet, Ford, Mercury and Studebaker models.
Fit and size
Build and materials
Interchange: 703-1033
12F13 · 6040 · 10640 · C6GY9030A · H436887 · 40040 · P6040 · 9MGC40
This part cross-references / interchanges with the following part numbers:
Does the Motorad MGC40 fuel tank cap fit a 1958-1963 Chevrolet Impala 3.8L / 4.6L?
Yes. The Motorad MGC40 fuel tank cap fits the 1958-1963 Chevrolet Impala 3.8L / 4.6L and the 1969-1971 Jaguar XKE 4.2L. If your car isn't named here, look it up in the "Vehicles it fits" section before you order.
Does this Motorad fuel tank cap lock with a key?
No. This fuel tank cap is non-locking and fastens with a twist-lock cam.
What thread diameter does the MGC40 fuel tank cap have?
The Motorad MGC40 fuel tank cap has a 47.24 mm (1.86 in) thread diameter, a 67.56 mm (2.66 in) shell outside diameter and a cap depth of 52.07 mm (2.05 in).
What signs can mean a vented fuel tank cap has stopped sealing?
Cracks in the cap, a cap that no longer tightens snugly, or a smell of gasoline near the filler can mean this fuel tank cap is not sealing.
Is this steel fuel tank cap tested for emissions?
Yes. This fuel tank cap is independently tested for emission control and is built to pass all state and federal emissions tests.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.