Oxygen Sensor for 1999-2004 Subaru Forester & More - DENSO 234-4706

$97.99

Part number: 234-4706

UPC: 042511147065

Condition: New

Weight: 0.25 LBS

Item Package Code: EA

Part Has Core (Y/N): N

Item Package Quantity: 1

$97.99

Current Stock: 110

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DENSO Auto Parts Oxygen Sensor P/N:234-4706

$97.99

Description

Give your engine computer a clear read on the exhaust leaving the catalytic converter with the DENSO Auto Parts Oxygen Sensor 234-4706, a heated, 4-wire oxygen sensor for the 1999-2004 Subaru Forester 2.5L and 1999-2004 Subaru Impreza 2.2L / 2.5L. The H4-2.2L application covers the 1999 model year only, while the H4-2.5L applications cover 1999-2004. It is a direct-fit replacement for the listed applications, and each one uses a single sensor.

This sensor mounts in the downstream position, after the catalytic converter. It measures the oxygen content of the exhaust coming out of the converter and sends that signal to the engine computer, which uses it to monitor converter efficiency.

Protected construction: A laser-welded stainless housing resists corrosion, and a PTFE filter blocks contaminants under harsh engine conditions. Dual-layer protection shields the ceramic element and is designed to support fast, reliable response times.
Aluminum oxide trap layer: DENSO's exclusive trap layer is designed to protect the ceramic element from silicone and lead poisoning.
Built to OE standards: DENSO manufactures and tests these sensors to the strictest OE standards. Each component is precision built for an exact replacement and a first-time fit.
Specifications: Narrow-band, heated, 4 wires, female connector, 17.72 in wiring harness, and a threaded mount with a 0.708 in thread diameter.

Country of origin: United States.

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

This part cross-references / interchanges with the following part numbers:

213-3118, OS1950, 13469, ES20101, 24578, SG1199, 22690AA540, 22690AA640, 250-24295, 350-34337

Buyer's Q&A

Frequently Asked Questions

What does a downstream oxygen sensor do?

It sits after the catalytic converter and measures the oxygen in the exhaust leaving it. The engine computer uses that signal to monitor how well the converter is working.

Does the DENSO 234-4706 fit my 1999-2004 Subaru Forester 2.5L?

It is listed for the 1999-2004 Subaru Forester 2.5L (H4-2.5L engine). Check the "Vehicles it fits" section to confirm your exact vehicle.

What are the key specifications of this sensor?

It is a heated, narrow-band sensor with 4 wires, a female connector, a 17.72 in wiring harness and a threaded mount with a 0.708 in thread diameter.

What are signs this oxygen sensor may need replacing?

Common signs include a check engine light with stored oxygen sensor or heater circuit codes. Diagnose the cause first, because other faults can set similar codes.

How does the 234-4706 install?

It threads into the downstream sensor port in the exhaust and connects through its female connector. Each listed application uses one sensor.