DENSO Auto Parts 234-9122 air / fuel ratio sensor for the 2005 Subaru Forester H4 2.5L and other vehicles measures the exhaust air-fuel ratio for the engine computer. This DENSO Auto Parts air fuel ratio sensor goes in the upstream position.
- Laser-welded stainless housing that resists corrosion
- PTFE filter that blocks contaminants under harsh engine conditions
- Dual-layer protection around the ceramic element for fast, reliable response times
- Heated wide-band sensor with a 4-wire connection
Quick facts
- Part: DENSO Auto Parts 234-9122 air / fuel ratio sensor
- Fits: 2005 Subaru Forester H4 2.5L and other vehicles
- Position: Upstream
- Condition: New
Before you replace this sensor, rule out wiring damage and exhaust leaks near it. A check engine light, poor fuel economy or a rough idle can come from those as well as from a worn sensor.
Fits
The 2005 Subaru Forester H4 2.5L, the 2004-2005 Subaru Outback H4 2.5L and the 2005 Subaru Impreza H4 2.5L are among the vehicles this direct-fit sensor fits, and it fits more. Open the "Vehicles it fits" section to check your exact model and engine. This listing is one sensor: the Forester and Impreza take one, while the Outback takes two.
Specifications
Fit and size
- Position: Upstream
- Quantity per application: 1 or 2, depending on the vehicle
- Wire quantity: 4
- Wiring harness length: 21.85 in
Build and materials
- Sensor type: Wide-band, heated
- Housing: Laser-welded stainless
- Filter: PTFE
- Grade: Standard replacement
- Condition: New
- Country of origin: Japan
This part cross-references / interchanges with the following part numbers:
213-2850, 213-2951, 213-3941, 15586, 15636, 15930, ES10942, ES10943, 24696, 24825, 32005979, SG1858, 22641AA13B, 22641AA150, 22641AA15A, 22641AA33A, 250-54027, 250-54061, 350-64005, 350-64037
Frequently Asked Questions
Does the DENSO 234-9122 fit the 2005 Subaru Forester H4 2.5L?
Yes. The DENSO Auto Parts 234-9122 is a direct-fit upstream air / fuel ratio sensor for the 2005 Subaru Forester H4 2.5L, and the Forester takes one.
Is this air / fuel ratio sensor right for the 2004-2005 Subaru Outback H4 2.5L?
Yes. This sensor fits the 2004-2005 Subaru Outback H4 2.5L, which takes two. This listing is a single sensor, so order the quantity your car needs.
How many wires does the DENSO 234-9122 have?
The DENSO 234-9122 is a heated wide-band sensor with 4 wires. Its wiring harness is 21.85 inches long.
Is the 234-9122 an upstream or downstream sensor?
This air / fuel ratio sensor is listed for the upstream position.
What protects the ceramic element in this air / fuel ratio sensor?
Dual-layer protection shields the ceramic element, helping keep response times fast and reliable. A PTFE filter blocks contaminants, and a laser-welded stainless housing resists corrosion.
