That nutsA few sites claim to sell it, but list the part number as KR3Z-6344210-AA. This is instead the gloss black GT500 variant, which comes with the GT500 price tag, just as a Mach 1 version will.
I was able to find that Herrod Performance in Australia shows this page for the particular 2021 Mach 1 version:
https://www.herrodperformance.com.au/2021-mustang-mach-1-handling-package-rear-spoiler-gurney-flap/
The part number is HP21-0103-AA, which starts with HP, so that is a Herrod specific number for them. They may be able to help you figure out the original Ford number though.
A cheaper route would likely be to purchase the same part from Ford Performance
(M-16600-FP) at roughly $500 and have it painted. LMR is currently selling it for $499.99 with free shipping (I just bought one myself to do this same thing). The paint color is Ford's own Magnetic Metallic paint (paint code 5FM6), but sprayed over with a matte finish. It requires a dark gray base laid down first. @raidernixon had his painted and stated it was done in the "equivalent to a stage 4 satin clear coat" per his shop. Attached below is the paint code on the underside of his base Mach 1 spoiler.
Thank you!!!A few sites claim to sell it, but list the part number as KR3Z-6344210-AA. This is instead the gloss black GT500 variant, which comes with the GT500 price tag, just as a Mach 1 version will.
I was able to find that Herrod Performance in Australia shows this page for the particular 2021 Mach 1 version:
https://www.herrodperformance.com.au/2021-mustang-mach-1-handling-package-rear-spoiler-gurney-flap/
The part number is HP21-0103-AA, which starts with HP, so that is a Herrod specific number for them. They may be able to help you figure out the original Ford number though.
A cheaper route would likely be to purchase the same part from Ford Performance
(M-16600-FP) at roughly $500 and have it painted. LMR is currently selling it for $499.99 with free shipping (I just bought one myself to do this same thing). The paint color is Ford's own Magnetic Metallic paint (paint code 5FM6), but sprayed over with a matte finish. It requires a dark gray base laid down first. @raidernixon had his painted and stated it was done in the "equivalent to a stage 4 satin clear coat" per his shop. Attached below is the paint code on the underside of his base Mach 1 spoiler.
It does but it's not as easy to FIND the part and sometimes it may give multiple versions of a part the same name. So, it's hard to tell if by "spoiler" it means the one you are looking for or one of the other 4 spoilers. You sometimes have to guess just based on the price.
Parts.ford.com but not easy to use.
