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Downstream Oxygen Sensor for Subaru Outback, Forester & Legacy (2006-2012) | 234-4445 22690-AA810
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Downstream Oxygen Sensor

for Subaru Outback, Forester & Legacy (2006-2012)
Replaces OE: 234-4445 22690-AA810
Resolves Symptoms:
Persistent Check Engine Light
Rough Idle
Poor Fuel Economy
Lean Hesitation
Check if your car is compatible This helps guarantee fitment of parts.
Delivery Free
Jul 31 - Aug 3 +
🚚 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.
60-Day Return & Refund
+
📦 Free Returns & Exchanges: Zero costs to you if the product has any quality issues.
💰 Full Refunds: 100% money-back guarantee within 60 days for defective items.
Review Rewards & Cashback
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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.

$29.95
  • No other fees; this is the final payment price
  • Get rid of your car's malfunctions and start a pleasant driving journey
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If problem with product: Free Returns & Refunds
Check Engine Light? Find Your Symptoms
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🌬️ 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
2006
Saab
9-2X 2.5i
2.5L H4
2006-2010
Subaru
Forester 2.5i
2.5L H4
2008-2009
Subaru
Impreza Sport 2.5i
2.5L H4
2011-2012
Subaru
Outback 2.5i (Includes Limited, etc.)
2.5L H4
2011
Subaru
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)
Item
Specification
Core Part Number
234-4445
Interchange: 2344445, 234 4445, 22690-AA810, 22690AA810, 22690-AA81A, 22690AA81A, 15170, 15172, 24642, OS5331, 22690AA93A, 32010413, 213-2951
Position
Downstream, Post-Catalytic Converter
Key Parameters
- 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)
Key Features
Improves fuel efficiency, stable performance, resistant to high temperature and corrosion.