This might help you out: Found this at Penske parts (
Penske Parts - Parts Catalog for BMW & Mini)
51_3896 - EL.FRONT DOOR WINDOW LIFTING MECHANISM
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#Part Number DescriptionlbQty
Each01 51338254911 WINDOW LIFTER WITHOUT MOTOR,FRONT LEFT3.17 1 $194.16
01 51338254912 WINDOW LIFTER WITHOUT MOTOR,FRONT RIGHT3.17 1 $194.16
02 51327020577 FRONT LEFT WINDOW GUIDE1.30 1 $61.80
02 51327020578 FRONT RIGHT WINDOW GUIDE1.30 1 $61.80
-- 51337046946 SEALING, WINDOW GUIDE 1 $2.70
03 41627051459 HEX NUT - M60.01 10 $0.50
41627051459 was superseded by 41626986935.
04 67628381019 DRIVE FOR WINDOW LIFTER, FRONT LEFT1.42 1 $144.63
04 67628381020 DRIVE FOR WINDOW LIFTER, FRONT RIGHT1.42 1 $144.63
05 07147154229 HEX BOLT - M6X120.01 4 $0.50
06 51338242760 BUSH0.01 6 $0.70
07 51338254781 CLIP0.01 2 $1.11
08 51337046946 SEALING, WINDOW GUIDE 2 $2.70
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