Upstream Air Fuel Ratio Sensor
- Check Engine Light (P0420/P0171)
- Rough Idle & Hesitation
- Poor Fuel Economy (MPG)
- Failed Emissions Inspection
2-Year Warranty
🛡️ Quality Coverage: Protects against any manufacturing defects for 2 full years.
🔄 Free Replacement: Brand-new replacement for free if quality issues occur.
30-Day Return & Refund
📦 Free Returns: Zero costs to you if the product has quality issues.
💰 Full Refunds: 100% money-back guarantee within 30 days for defective items.
5-Step Fitment Guide
- Check OE: Find original part no. & plug.
- Compare Photos: Match plug with our images.
- Verify YMM: Confirm via fitment tool.
- Review Specs: Check pins & dimensions.
- Purchase: Buy confidently once matched!
Review Rewards
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- Under $50 Orders: 3% Off Next Order
- $50+ Orders: 5% Direct Cashback
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-
No hidden fees: What you see is what you pay.
-
Restore performance: Fix issues and drive with confidence.
Check Engine Light? Find Your Symptoms
- P0134No Activity Detected
- P0135Heater Circuit Malfunction
- P0137/38Circuit Low/High Voltage
- P2195Signal Stuck Lean
- P0030/31Heater Control Circuit
- P0171/74System Too Lean
- P0172System Too Rich
- P2096Post-Catalyst Trim Too Lean
- P0087Fuel Rail Pressure Low
- P0201-04Injector Circuit Open
- P0420Efficiency Below Threshold (B1)
- P0430Efficiency Below Threshold (B2)
- P0300Random Misfire
- P0301-06Cylinder-Specific Misfire
Automotive-Leader Sensors
Vehicle Compatible
|
Year
|
Make
|
Model
|
Engine/Displacement
|
|---|---|---|---|
|
2002-2003
|
Lexus
|
ES300
|
3.0L V6
|
|
2006-2007
|
Subaru
|
B9 Tribeca
|
3.0L H6
|
|
2005-2009
|
Subaru
|
Outback
|
3.0L H6
|
|
2008-2009
|
Subaru
|
Tribeca
|
3.6L H6
|
|
2008-2009
|
Subaru
|
Legacy
|
3.6L H6
|
|
2003-2004
|
Toyota
|
4Runner (Limited, Sport, SR5)
|
4.0L V6
|
|
2004-2006
|
Toyota
|
Sienna CE
|
3.3L V6
|
|
2004-2006
|
Toyota
|
Sienna (CE, LE)
|
3.3L V6
|
|
2004-2006
|
Toyota
|
Sienna (CE, LE)
|
3.3L V6
|
|
2006
|
Toyota
|
Sienna Limited
|
3.3L V6
|
|
2004-2006
|
Toyota
|
Sienna XLE
|
3.3L V6
|
|
2004-2005
|
Toyota
|
Sienna XLE Limited
|
3.3L V6
|
Product Specifications
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-9055
Interchange: 2349055, 89467-08020, 8946708020, 8946708040, 89467-08040, 250-54008, ES10935 |
|
Position
|
Exhaust System, Upstream (Pre-Catalytic Converter)
|
|
Key Parameters
|
- Type: Heated Oxygen Sensor
- Wire Quantity: 4-Wire - Connector Gender: Male - Thread Diameter: 0.711 in - Wire Harness Length: 7.87 In |
Package Content :
1Pcs 234-9055 O2 Sensor