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2Pcs Air Fuel Ratio & O2 Sensor
for Subaru Forester Impreza Outback 2.5L (03-04)
Replaces OE: 234-9015 234-4706
Resolves Symptoms:
Persistent Check Engine Light
Rough Idle
Poor Fuel Economy
Lean Hesitation
5-Step Fitment Guide:
1
Check OE: Find original part no. & plug.
2
Compare Photos: Match plug with our images.
3
Verify YMM: Confirm via fitment tool.
4
Review Specs: Check pins and dimensions.
5
Purchase: Buy confidently once matched!
Check if your car is compatible
This helps guarantee fitment of parts.
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Delivery Free
Sep 19 - Sep 22
🚚 Fast US Local: Dispatched quickly from our local US warehouses for swift delivery.
2-Year Warranty
🛡️ Quality Coverage: Protects against any manufacturing defects for 2 full years.
🔄 Free Replacement: We will provide a brand-new replacement for free if any quality issues occur.
30-Day Return & Refund
📦 Free Returns & Exchanges: Zero costs to you if the product has any quality issues.
💰 Full Refunds: 100% money-back guarantee within 30 days for defective items.
Review Rewards & Cashback
Share an install photo & review to unlock tier rewards:
🥈 Under $50
3% Off Next Order
🥇 $50+ Orders
5% Direct Cashback
🔥 Tip: Buy a Combo Set to easily hit $50 and unlock 5% Cashback!
💡 How to claim: Email a screenshot of your review to our support team.
$65.95
- No other fees; this is the final payment price
- Get rid of your car's malfunctions and start a pleasant driving journey
Check Engine Light? Find Your Symptoms
🌬️ O2 & A/F Sensors
- P0134No Activity Detected
- P0135Heater Circuit Malfunction
- P0137/38Circuit Low/High Voltage
- P2195Signal Stuck Lean
- P0030/31Heater Control Circuit
⛽ Fuel & Air Mixture
- P0171/74System Too Lean
- P0172System Too Rich
- P2096Post-Catalyst Trim Too Lean
- P0087Fuel Rail Pressure Low
- P0201-04Injector Circuit Open
♻️ Catalytic Converters
- P0420Efficiency Below Threshold (B1)
- P0430Efficiency Below Threshold (B2)
⚡ Ignition / Misfires
- P0300Random Misfire
- P0301-06Cylinder-Specific Misfire
🚛 NOx Sensors & SCR
- P2200/02Sensor Circuit / Signal Low
- P229FCircuit Range/Performance
- P207FReductant Quality Perf.
- 46F2/4D16BMW SCR Efficiency Faults
🛑 ABS & Wheel Speed
- C1021Front Wheel Speed Sensor
- C1025Sensor Signal Erratic
- C1207ABS Pump Overrun
- C0561System Disabled
Automotive-Leader Sensors
Vehicle Compatible
|
Year
|
Make
|
Model
|
Engine/Displacement
|
Note
|
|---|---|---|---|---|
|
2003-2006
|
Subaru
|
Baja Sport Crew Cab Pickup 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003
|
Subaru
|
Baja Base Crew Cab Pickup 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003-2004
|
Subaru
|
Forester X Wagon 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003-2004
|
Subaru
|
Forester XS Wagon 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2004
|
Subaru
|
Forester XT Wagon 4-Door
|
2.5L H4
|
2458CC, GAS, DOHC, Turbocharged
|
|
2003-2004
|
Subaru
|
Impreza TS Wagon 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003-2004
|
Subaru
|
Impreza Outback Wagon 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003-2004
|
Subaru
|
Impreza RS Sedan 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2004
|
Subaru
|
Impreza WRX STI Sedan 4-Door
|
2.5L H4
|
2458CC, GAS, DOHC, Turbocharged
|
|
2003
|
Subaru
|
Legacy L SE Sedan 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003
|
Subaru
|
Legacy L SE Wagon 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003-2004
|
Subaru
|
Legacy GT Sedan 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003-2004
|
Subaru
|
Legacy GT Wagon 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2004
|
Subaru
|
Legacy L 35th Anniversary Sedan 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2004
|
Subaru
|
Legacy L 35th Anniversary Wagon 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003-2004
|
Subaru
|
Legacy L Sedan 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003-2004
|
Subaru
|
Legacy L Wagon 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003-2004
|
Subaru
|
Outback Base Wagon 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003-2004
|
Subaru
|
Outback Limited Sedan 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
|
2003-2004
|
Subaru
|
Outback Limited Wagon 4-Door
|
2.5L H4
|
2458CC, GAS, SOHC, Naturally Aspirated
|
Product Specifications
Warranty & Support: 2 Years + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-9015
Interchange: 2349015, 22641-AA280, 22641-AA230, 22641-AA140, 5S5632, ES10936, 753250, 15501, 213-2850, 2132850 |
|
Position
|
Exhaust System, Upstream (Pre-Catalytic Converter)
|
|
Key Parameters
|
- Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire - Connector Gender: Female - Wiring Harness Length: 20.47 In. - Thread Diameter: 0.711 In. - Mounting Type: Threaded |
|
Core Part Number
|
234-4706
Interchange: 2344706, 22690-AA420, 22690-AA540, 2133118, AP4145, 22690-AA640, 24578, ES20101, ES10626, ES2010111B1, 13469, 15336, 752171, 752582, OS1950, KN4145, SG1199 |
|
Position
|
Exhaust System, Downstream (Post-Catalytic Converter)
|
|
Key Parameters
|
- Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire - Connector Gender: Female - Wiring Harness Length: 17.72 In. - Thread Diameter: 0.708 In. - Mounting Type: Threaded |
Package Content : 2PCS (1*234-9015 Upstream+1*234-4706 Downstream) Oxygen Sensor