Front brake part numbers info

[greymrj]

As a result of the thread on brake caliper seal rings, and the note that caliper info is not on the Alternative Parts List, I went through the components on my S1 and the Lucas parts list with my factor. I believe all the following is correct for the S1 in ex-works condition but would prefer to post here first for others to check/comment before offering for the parts list. I do not know if and when this changed for the S series. The parts are current for the Ford Sierra up to the end of production in 1993.
Caliper 54mm* diameter piston Lucas BCW187E
(note this is a slightly 'stepped' piston, the O/D on the portion visible outside the dust seal is 52mm)
Seal kit from www.biggred.co.uk part number 5414A
Disc is slotted, none ABS, Lucas DF 1649
Pads Lucas GDB 255

[kenpage]

richard i can confirm that the seal kit you state is the same as the s2