Please ensure that our part number is consistent with your original part number, or inform us of the vehicle identification code, and we will verify it for you.
For example
2011 Lexus RX350 Base Sport Utility 4-Door 3.5L 3456CC V6 GAS
VIN: ABCDEFGHIJKLMNOPQ
Compatible vehicle models
Saab 9-2X 2006 2.5L H4 Upstream
Subaru Forester 2006-2010 2.5L H4 Upstream
Subaru Impreza 2006-2011 2.5L H4 Upstream
Subaru Impreza Sport 2008-2009 2.5L H4 Upstream
Subaru Legacy 2006-2008 2.5L H4 Upstream
Subaru Legacy 2.5i Limited or 2.5i Model or 2.5i Special Edition or 2.5i Touring 2009 2.5L H4 Upstream
Subaru Outback 2006-2009 2.5L H4 Upstream
Features & Benefits
- One-piece laser welded body for maximum protection and precise operation maintaining sensor integrity
- PTFE allows increased air flow for a faster switch rate to improve fuel economy and save the motorist money at the pump
- Stainless steel shield protects the element from thermal shock and regulates proper air flow to ensure faster sensor response and better performance
- Manufactured with the highest grade materials for prolonged life and superior performance
100% Brand New.
According to original factory specifications, perfect match to original car.
Made of high quality material.
Parts are from certified professional factory
Installation Information
Model : Denso 234-9123
Pin : 4-pin
Quantity : 1pc
Product fit : Direct fit
Position : Oxygen Sensor
Connector Type : Female
Installation Steps
Step 1: Confirm that the OE Number matches the original part
Step 2: Check the integrity of the wiring connection before installation
Step 3: Clear OBD Fault Codes
Step 4: Check if the wiring connection is firm after installation
Step 5: Power on and activate, and conduct function tests
Installation Notes
1）Professional installation is highly recommended.Contact us with photos and fault codes if you need assistance.
2）Required tools: oxygen sensor socket, torque wrench (30–40 N·m), anti-seize compound (threads only).
3）DO NOT:
- Touch the ceramic probe with fingers (may cause sensor failure)
- Use an impact wrench (damages threads and voids warranty)
- Install without cleaning exhaust carbon buildup
Symptoms of a bad osygen sensor:
Check Engine Light is ON
A decrease in fuel economy
Engine Hesitation or misfire
Rough Idling
look the oxygen sensor's leader