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Important: Verify connector shape and pins match your original part.
Downstream Oxygen Sensor
Fits Subaru Outback, Forester & Legacy (2006-2012)
Replaces OE: 234-4445, 22690-AA810
Resolves Symptoms
- Check Engine Light (P0420/P0171)
- Rough Idle & Hesitation
- Poor Fuel Economy (MPG)
- Failed Emissions Inspection
Estimated Delivery
Free
Ordered
Nov 11
Prepared
Nov 11-Nov 12
Delivered
Nov 25-Dec 3
Requires overseas shipment. Upgrade to expedited shipping at checkout if urgent.
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
Share an install photo & review to unlock:
- Under $50 Orders: 3% Off Next Order
- $50+ Orders: 5% Direct Cashback
*Email screenshot of your review to support to claim.
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$29.95
-
No hidden fees: What you see is what you pay.
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Restore performance: Fix issues and drive with confidence.
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
Automotive-Leader Sensors
Vehicle Compatible
|
Year
|
Make
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Model
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Engine/Displacement
|
|---|---|---|---|
|
2006
|
Saab
|
9-2X 2.5i
|
2.5L H4
|
|
2006-2010
|
Subaru
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Forester 2.5i
|
2.5L H4
|
|
2008-2009
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Subaru
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Impreza Sport 2.5i
|
2.5L H4
|
|
2011-2012
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Subaru
|
Outback 2.5i (Includes Limited, etc.)
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2.5L H4
|
|
2011
|
Subaru
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Impreza 2.5i (Includes Premium, Outback Sport, etc.)
|
2.5L H4
|
|
2011-2012
|
Subaru
|
Legacy 2.5i (Includes Limited, Premium, etc.)
|
2.5L H4
|
Product Specifications
Warranty & Support: 2-Year Warranty (Pre-sale Load Test + 24/7 Technical Support)
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Item
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Specification
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|---|---|
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Core Part Number
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234-4445
Interchange: 2344445, 234 4445, 22690-AA810, 22690AA810, 22690-AA81A, 22690AA81A, 15170, 15172, 24642, OS5331, 22690AA93A, 32010413, 213-2951 |
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Position
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Downstream, Post-Catalytic Converter
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Key Parameters
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- Type: Heated Oxygen Sensor (4-Wire)
- Wire Harness Length: 530 mm (20.87 in) - Connector Gender: Male - Thread Size: M18×1.5 (0.708 in / 17.98mm) |
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Key Features
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Improves fuel efficiency, stable performance, resistant to high temperature and corrosion.
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