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Oil Filler Cap Differences - Coyote 5.0 Gen 2 and Gen 3

Snakebyte

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I am looking for a dress-up aftermarket oil filler cap (not a cap cover, but a full cap) for my 2019 Mustang GT. Ones meeting my desired aesthetics are seemingly only available for Gen 2 Coyotes (in 2015-2017 Mustangs).

I realize the Gen 2 and Gen 3 caps have different upper, outside shapes, but I'm interested about functional and dimensional differences underneath.

Can anyone tell me if a Gen 2 oil cap can be functionally installed on a Gen 3? Both Generations incorporate a 1/4 turn locking feature. Are the diameter, depth of threads, etc. of those generation caps the same? Is there a difference in the seal material, or another feature that is critical to crankcase pressure or emissions? Is there some other design need prohibiting such a swap?

If someone in this forum has successfully made a cross-swap, I'd be interested in hearing that as well.

BTW...I noticed that latter V6 engines seem to have a 1/4 turn locking feature. Has anyone successfully cross-swapped one of those?

Thank you for any insight you have.
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Snakebyte

Well-Known Member
Joined
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West Central Florida
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Nathan
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2019 Mustang GT Convertible
Actually, I have an alternative proposal for my dilemma....Does anyone know if the 2019 EcoBoost oil cap will physically fit the 2019 GT engine?
 
 




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