Alternator rectifier for BMW 3 (E21) 1975–1984 318 | CP247

Alternator rectifier for BMW 3 (E21) 1975–1984 318 i (1.8 L / 77 kW / 105 hp) M10 B18 (184VA) — what you need to know

Finding the right alternator rectifier for your BMW 3 (E21) 1975–1984 318 i (1.8 L / 77 kW / 105 hp) M10 B18 (184VA) is essential for safe and reliable driving. We offer a wide selection from 20+ trusted brands, all with TecDoc-verified fitment for your specific vehicle.

When choosing alternator rectifier for your BMW 3 (E21) 1975–1984 318 i (1.8 L / 77 kW / 105 hp) M10 B18 (184VA), consider factors like OEM vs aftermarket quality, material specifications, and your driving conditions. OEM parts match original specifications exactly, while premium aftermarket brands like Bosch, TRW, and Febi Bilstein often offer comparable quality at lower prices.

All alternator rectifier listed on this page are confirmed compatible with BMW 3 (E21) 1975–1984 318 i (1.8 L / 77 kW / 105 hp) M10 B18 (184VA). Our fitment data is sourced from TecDoc, the industry-standard European automotive parts database. If you are unsure about compatibility, check the OE part number on your existing component and use our cross-reference search.