Rear Oxygen Sensor for 1997-2000 BMW Z3 & More - Walker 350-34095

Walker Products 350-34095 rear oxygen sensor for the 1997-1998 BMW Z3 6-cylinder 2.8L, the 1998-2000 Z3 6-cylinder 3.2L and other vehicles measures the oxygen in the exhaust gas. That reading tells the ECU how efficiently the engine is burning its fuel.

• Four-wire titania narrow-band oxygen sensor
• Monitors exhaust gases and helps reduce pollutants
• Electrodes with a gas-permeable platinum layer
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Measures oxygen levels so the air-fuel mixture can be fine-tuned, which helps fuel economy

Quick facts

• Part: Walker Products 350-34095 oxygen sensor
• Fits: the 1997-1998 BMW Z3 6-cylinder 2.8L, the 1998-2000 Z3 6-cylinder 3.2L and other vehicles
• Position: Upstream, downstream, downstream rear
• Condition: New

A failing sensor can make the engine run poorly, raise fuel use or exhaust emissions, or turn on the malfunction indicator light. Before you replace this sensor, rule out physical damage to its wiring harness and connector, which you can look over with the engine off and cool.

Fits

The vehicles it fits include the 1997-1998 BMW Z3 6-cylinder 2.8L, the 1998-2000 Z3 6-cylinder 3.2L, the 1996-1999 BMW 328i 6-cylinder 2.8L and the 1996-1999 328is 6-cylinder 2.8L. It is an OE replacement made for its specific application and fitment position. This listing is one sensor, and the number a car takes varies by vehicle.

Specifications