Shop OEM BMW Part # 12318636420 (12-31-8-636-420). Alternator Pulley. 4.4 LITER. 4.4 LITER TWIN TURBO. 4.4 LITER TWIN TURBO, M50i. 4.4 LITER, W/O M8. 5 Series; w/o GT Models; w/4.4L. 750i

5 Series; W/GT Models; 535I gt. 5 Series; W/GT Models; 550I gt xdrive. 5 Series; W/O gt Models; W/4. 4L. 5 Series; W/O gt Models; W/O 4. 4L; 180 Amp. 5 Series; W/O gt Models; W/O 4. 4L; 250 Amp. 535I gt xdrive.

5 Series; w/o GT Models; w/4.4L.

4. 4 liter twin turbo. New. W/M model. W/O M model.

4.4 LITER TWIN TURBO.

4. 4 liter.

4.4 LITER.

4. 4 liter. W/M8. W/O M8.

4.4 LITER. w/o M8.