This is a genuine OEM knuckle joint newly manufactured on the original tools to Austin Rover OEM standards.
These joints are complete with the knuckle, nylon cup (21A423) and rubber boot (21A425)
Suitable for fitment on both front and rear of all Minis except later cars from about 1990 onwards with a built in spacer for extra ride height clearance.
If left unchecked and not greased properly, the knuckle can wear through the nylon cup.
We need to stress that this is genuine OEM Austin Rover quality which is made in Great Britain and not a cheap imitation from the Far East.