It would be either a 15 mm wrench or a 7mm Allen key.
Not likely to be Allen key, try 15 mm regular wrench
I believe that is a 7mm Allen.
I believe that's a 5/16 Allen.
What size alien wrench need to take off brake caliper 1996 Buick le sabra
It takes a FA12A Allen wrench.
It's either 14 or 17 mm wrench , not Allen key.
3/8"
A 3/8" Allen wrench will remove that bolt on the front caliper.
2006 lincoln navigator requires a 7mm hex to remove brake caliper
use an Allen wrench not a socket or open or box wrench.
Depending where it was built, a 3/8 Allen key or 15 mm regular wrench.
I believe a 3/8 Allen is the right tool.