Oxygen Sensor for 1987-1995 BMW 325i & More - Bosch 13231

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$102.99

MPN: 13231

Item Package Quantity: 1

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Bosch Oxygen Sensor P/N:13231

$102.99

Description

Bosch 13231 oxygen sensor for the 1987-1995 BMW 325i 6-cylinder 2.5L and other vehicles sends air-fuel-ratio readings to the ECU. This upstream Bosch sensor helps keep combustion stable and emissions down.

Reaches operating temperature in under 10 seconds for quick closed-loop control and cold-start response
Metal housing, integrated heater element and TSP coating resist vibration, corrosion and contamination
Withstands exhaust streams up to 1,880°F
Pre-applied conductive anti-seize on the threads and a direct-fit connector

Quick facts

Part: Bosch 13231 oxygen sensor
Fits: 1987-1995 BMW 325i 6-cylinder 2.5L and other vehicles
Position: Upstream
Material: Metal housing
Condition: New

A check engine light, rough idle or lower fuel economy can mean the sensor is wearing out. Those signs alone do not prove the sensor is at fault, since a vacuum leak is another common source.

Fits

It is listed for a wide range of BMW models, including the 1988-1995 BMW 325is 6-cylinder 2.5L and the 1992-1995 BMW 318i 4-cylinder 1.8L, as a direct-fit replacement.

Specifications

Fit and size

Position: Upstream
Quantity per vehicle: varies by engine
Thread size: M18 - 1.5
Hex size: 22 mm
Length (sealing surface to end of connector): 21.3 in

Build and materials

Type: Narrow-band, heated
Housing material: Metal
Wiring harness: included
Mounting bracket: not included
Condition: New
Warranty: Bosch 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks

In the box

One oxygen sensor with its wiring harness. A mounting bracket is not included. This listing holds one sensor, and how many your car takes depends on the engine.

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

Frequently Asked Questions

Is this the BMW 325i oxygen sensor for the 1987-1995 car with the 6-cylinder 2.5L?

Yes. Bosch 13231 is an upstream sensor listed for the 1987-1995 BMW 325i 6-cylinder 2.5L, which takes one. If your car is not named here, look it up on the Buyer's Guide tab.

Does Bosch 13231 work as a BMW 318i oxygen sensor for the 1992-1995 4-cylinder 1.8L?

Yes. Bosch 13231 is listed for the 1992-1995 BMW 318i 4-cylinder 1.8L, which takes one upstream sensor.

Does this Bosch O2 sensor come with its wiring harness?

Yes. The wiring harness is included with the sensor. A mounting bracket is not included.

What thread size and wrench size does this oxygen sensor have?

Bosch 13231 has an M18 - 1.5 thread and a 22 mm hex. The length from the sealing surface to the end of the connector is 21.3 in.

What warranty comes with this Bosch oxygen sensor?

Bosch backs it with a 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks.