4-Piece Lambda O2 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
|
Note
|
|---|---|---|---|---|
|
2008
|
BMW
|
535xi
|
3.0L L6
|
Turbocharged, AWD
|
|
2008-2010
|
BMW
|
535i
|
3.0L L6
|
Turbocharged
|
Product Specifications
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-5027
Interchange: 2345027, 11787557758, 11787586693, 11787589139 |
|
Position
|
Exhaust System, Upstream, Front, Pre-Catalytic Converter
|
|
Key Parameters
|
- Sensor Type: Heated Oxygen Sensor
- Wire Quantity: 5 Wires - Wire Harness Length: 43.31 IN - Connector Gender: Male - Thread Diameter: 0.711 IN |
|
Core Part Number
|
234-5025
Interchange: 2345025, 11787570760, 11787586692 |
|
Position
|
Exhaust System, Upstream, Front, Pre-Catalytic Converter
|
|
Key Parameters
|
- Sensor Type: Heated Oxygen Sensor
- Wire Quantity: 5 Wires - Wire Harness Length: 51.10 IN - Connector Gender: Male - Thread Diameter: 0.711 IN |
|
Core Part Number
|
234-4876
Interchange: 2344876, 11787526262, 11787545074, 11787545244, 11787569968, 11787614322 |
|
Position
|
Exhaust System, Downstream, Rear, Post-Catalytic Converter
|
|
Key Parameters
|
- Sensor Type: Heated Oxygen Sensor
- Wire Quantity: 4 Wires - Wire Harness Length: 21.57 IN - Connector Gender: Female - Thread Diameter: 0.708 IN - Mounting Type: Threaded |
|
Core Part Number
|
234-4892
Interchange: 2344892, 11787539137, 11787544655, 11787545075, 11787545243 |
|
Position
|
Exhaust System, Downstream, Rear, Post-Catalytic Converter
|
|
Key Parameters
|
- Sensor Type: Heated Oxygen Sensor
- Wire Quantity: 4 Wires |
Package Included:
4pcs (1pcs 234-5025 + 1pcs 234-5027 +1pcs 234-4876 + 1pcs 234-4892) upstream & downstream oxygen sensor