SPEC:
17/ 49x23.3x3.5  6 Grooves  NCB1120A  H7P150A

OE ALTERNATOR:
BMW 
12 31 4 487 081；  12 31 7 521 384
12 31 7 521 490；  12 31 7 521 491
12 31 7 532 965；  12 31 7 542 529

Applications:

BMW：
116i,118i,120i,130i
316i,-Touring /ti,-Compact/ Ci Coupè
318i,-Touring /ti,-Compact /Ci Cabrio
320i,-Touring /si  323i,-Touring
325i/330i,-Touring /xi,-Touring
523i/525i/530i /xi,-Touring
523/525/530Li
630i,-Cabrio  X3 2.0i
7 (E65, E66) 730 i,Li
X1 (E84) sDrive18i　
X1 (E84) xDrive25i
X1 (E84) xDrive28i
X3  2.0i,2.5i,3.0i,-xDrive
X5 3.0 si,-xDrive 3.0i
Z4 2.0i /2.5i,-si
3.0i,-si,-Coupè