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BCA) 55 kW / 75 HP GOLF IV 1J1 1997-2007 1
Alternator charge current: 90 A
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8VM 2013-2021 S3 quattro (CJXG
1T2 2003-2011 2
Bosch Alternator Voltage Regulator 12V - 1 986 AE0 081 FPST100 BCA) 55 kW / 75Product Details & Application This Bosch alternator voltage regulator (1 986 AE0 081) is a 12 V replacement regulator used across a wide range of BMW and Mercedes Benz alternator applications. It regulates alternator output voltage to protect the battery and vehicle electrical system during charging. Identification for this part is primarily by OEM reference cross reference match at least one supplied OE number to the regulator or alternator being