Voltage 14, Amp 170, Communication BSS, Pulley SP, Pulley Diameter 53.30, Prod. info BN/OE, Bracket Hole Size Rear M10, Pulley Distance 60.50, Servicing BMW, Remarks 3 This Alternator has a COM terminal on the regulator. It is recommended that the OEM number is used to check suitability before ordering., Source Valeo, Mounting Bracket Distance 76.00, Radius 93.00, Belt Adjustment Bracket Hole 1 10.50, Grooves/pulley 6, Regulator type IR, Bracket Hole Size 1 10.70, Terminal type COM, Holder Arm Width 28.00, B+ M8, Radius 2 93.00, Plug no. 1 PL86, Rotation CW, Position 5, B+ Position 52, Belt Adjustment Bracket Hole Position 45, Total Length 185.50