Oxygen Sensor for 2003-2004 Subaru Outback & More - Bosch 15501

$360.99

Part number: 15501

UPC: 028851155014

Condition: New

Weight: 0.30 LBS

Item Package Quantity: 1

$360.99

Current Stock: 10

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Bosch Oxygen Sensor P/N:15501

$360.99

Description

Bosch 15501 oxygen sensor for the 2003-2004 Subaru Outback H4 2.5L and other vehicles measures the air-fuel ratio and reports it to the ECU. This wideband A/F sensor reads the full lambda range continuously, so the ECU gets more detail than a switching sensor provides.

Wideband A/F design with a planar pump cell for continuous air-fuel ratio readings across the full lambda range
Reaches operating temperature in under 7 seconds for quick closed-loop control
Ceramic construction and optimized heater control for steady readings through rapid load changes and thermal cycling
Metal housing, integrated heater element and TSP coating to resist vibration, corrosion and contamination
Built to withstand exhaust streams up to 1,880°F

Quick facts

Part: Bosch 15501 oxygen sensor
Fits: the 2003-2004 Subaru Outback H4 2.5L and other vehicles
Position: Upstream
Material: Metal (housing)
Condition: New

A rough idle, poor fuel economy or a check engine light can mean this sensor is worn, though a cracked intake hose or a worn spark plug can produce similar readings, so find the actual cause before you replace it.

Fits

This sensor is listed for a wide range of Subaru models, and it is an oxygen sensor for the 2003 Subaru Forester H4 2.5L as well as the 2003-2004 Subaru Impreza H4 2.5L. Each one needs a single upstream sensor, and this listing is one.

Specifications

Fit and size

Position: Upstream
Quantity per vehicle: 1
Thread size: M18 - 1.5
Hex size: 22 mm
Overall length: 23.2 in
Length (sealing surface to end of connector): 22 in
Terminal quantity: 4

Build and materials

Sensor type: Wide-band
Mounting type: Threaded
Housing material: Metal
Wiring harness: 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.

Installation notes

Conductive anti-seize is already applied to the threads.
Direct-fit connectors are made for quick installation.

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

Buyer's Q&A

Frequently Asked Questions

Is the Bosch 15501 an oxygen sensor for the 2003-2004 Subaru Impreza H4 2.5L?

Yes. Bosch 15501 is an upstream sensor listed for the 2003-2004 Subaru Impreza H4 2.5L, one per car. If your Subaru is a different model, look it up in the "Vehicles it fits" section.

Is this a 2003 Subaru Outback oxygen sensor for the H4 2.5L engine?

Yes. Bosch 15501 is listed for the 2003-2004 Subaru Outback H4 2.5L, which includes a 2003 model. It is an upstream sensor.

Does this Bosch O2 sensor come with a wiring harness?

Yes. This listing is one oxygen sensor with its wiring harness.

Is this Bosch premium oxygen sensor a wideband or a switching type?

Wideband. Bosch 15501 is a wide-band A/F sensor with 4 terminals, an M18 - 1.5 thread and a 22 mm hex.

What is already on the threads of this oxygen sensor?

Conductive anti-seize is pre-applied to the threads. The connectors are direct-fit for quick installation.

Manufacturer resources

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