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2-Piece O2 Sensor Upstream & Downstream
Fits BMW 328i 528i X3 Z4
Replaces OE: 234-5139, 234-4892
Resolves Symptoms
- Check Engine Light (P0420/P0171)
- Rough Idle & Hesitation
- Poor Fuel Economy (MPG)
- Failed Emissions Inspection
Estimated Delivery
Free
Ordered
Sep 29
Prepared
Sep 29-Sep 30
Delivered
Oct 1-Oct 4
Dispatched quickly from local US warehouses.
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
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$53.95
-
No hidden fees: What you see is what you pay.
-
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
|
Model
|
Engine/Displacement
|
|---|---|---|---|
|
2011
|
BMW
|
1 SERIES M
|
3.0L L6 (Turbo)
|
|
2008-2013
|
BMW
|
128I
|
3.0L L6
|
|
2008-2010
|
BMW
|
135I
|
3.0L L6 (Turbo)
|
|
2010-2011
|
BMW
|
323I
|
2.5L L6
|
|
2006
|
BMW
|
325I
|
3.0L L6
|
|
2006
|
BMW
|
325XI
|
3.0L L6
|
|
2007-2013
|
BMW
|
328I
|
3.0L L6
|
|
2007-2008
|
BMW
|
328XI
|
3.0L L6
|
|
2006
|
BMW
|
330I
|
3.0L L6
|
|
2006
|
BMW
|
330XI
|
3.0L L6
|
|
2007-2010
|
BMW
|
335I
|
3.0L L6 (Turbo)
|
|
2011-2013
|
BMW
|
335IS
|
3.0L L6 (Turbo)
|
|
2007-2008
|
BMW
|
335XI
|
3.0L L6 (Turbo)
|
|
2008-2010
|
BMW
|
528I
|
3.0L L6
|
|
2008
|
BMW
|
528XI
|
3.0L L6
|
|
2007-2009
|
BMW
|
X3
|
3.0L L6
|
|
2010
|
BMW
|
X3 xDrive30i
|
3.0L L6
|
|
2007-2010
|
BMW
|
X5
|
3.0L L6
|
|
2006-2016
|
BMW
|
Z4
|
3.0L L6
|
|
2011-2016
|
BMW
|
Z4
|
3.0L L6 (Turbo)
|
Product Specifications
Warranty & Support: 2 Years + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-5139
Interchange: 11787558055, 234-5139, 0035427218, 11787557756, 24322, V20760050, 25025018, 108482, V20760059, 17098 |
|
Position
|
Exhaust System, Upstream (Pre-Catalytic Converter)
|
|
Key Parameters
|
- Sensor Type: Heated Oxygen Sensor
- Wire Configuration: 5-Wire - Thread Diameter: 0.711 in - Wiring Harness Length: 60.43 in (Sealing Surface to End of Connector: 54.72 in) - Connector Gender: Male |
|
Core Part Number
|
234-4892
Interchange: 11787545075, 234-4892, 11787539137, 11787544655, 11787545243, 25613, 25024465, V20760191, 16414
|
|
Position
|
Exhaust System, Downstream (Post-Catalytic Converter)
|
|
Key Parameters
|
- Sensor Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire - Thread Diameter: 0.708 in - Wiring Harness Length: 15.08 in (Sealing Surface to End of Connector: 18.58 in) - Connector Gender: Male - Mounting Type: Threaded |
Package Content :
2Pcs (1*234-5139 Upstream+1*234-4892 Downstream) Oxygen Sensor