O2 Sensor for BMW 3 (E21) 1975–1984 320 i (2.0 L /

O2 Sensor for BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20 — what you need to know

Finding the right o2 sensor for your BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20 is essential for safe and reliable driving. We stock 1+ options from 24+ trusted brands, all with TecDoc-verified fitment for your specific vehicle.

When choosing o2 sensor for your BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20, 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 o2 sensor listed on this page are confirmed compatible with BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20. 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.

Other Engine spare parts for BMW 3 (E21) 1975–1984

Charging (supercharged/turbocharged) charger Engine mounting Piston Ring Kit Crankshaft Bearing Set Piston Charge Air Hose Connecting Rod Bearing Cylinder head seal Cylinder head gasket kit Engine full gasket kit Chip Tuning Crankshaft pulse sensor Charger oil line Mass Air Flow Sensor Cylinder head cover gasket

Frequently Asked Questions

Which o2 sensor fits BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20?

All o2 sensor listed on this page are confirmed compatible with BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20 via TecDoc fitment data. 1 options available from BOSCH, NTK, DELPHI.

How often should I replace o2 sensor on a BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20?

Replacement intervals depend on driving conditions, mileage, and the specific o2 sensor brand. Refer to your BMW service schedule for recommended intervals. Regular inspection during servicing helps identify wear before failure.

What's the price range for o2 sensor for BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20?

O2 Sensor prices for BMW 3 (E21) 1975–1984 320 i (2.0 L / 92 kW / 125 hp) M10 B20 range from £35.04 to £35.04. All parts include our 14-day money-back guarantee and free UK delivery on orders over £50.