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2-Piece Upstream O2 Sensor Set
Fits BMW 325Ci 330Ci & X5 (M54 Engine)
Replaces OE: 234-4672
Resolves Symptoms
- Check Engine Light (P0420/P0171)
- Rough Idle & Hesitation
- Poor Fuel Economy (MPG)
- Failed Emissions Inspection
Estimated Delivery
Free
Ordered
Sep 24
Prepared
Sep 24-Sep 25
Delivered
Sep 26-Sep 29
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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$39.95
-
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 Brand Products
Vehicle Compatible
|
Year
|
Make
|
Model
|
Engine/Displacement
|
|---|---|---|---|
|
2000
|
BMW
|
323Ci
|
2.5L
|
|
1999-2000
|
BMW
|
323i
|
2.5L
|
|
2001-2003
|
BMW
|
325Ci
|
2.5L
|
|
2001-2003
|
BMW
|
325i
|
2.5L
|
|
2001-2005
|
BMW
|
325xi
|
2.5L
|
|
2000
|
BMW
|
328Ci
|
2.8L
|
|
1999-2000
|
BMW
|
328i
|
2.8L
|
|
2001-2003
|
BMW
|
330Ci
|
3.0L
|
|
2001-2003
|
BMW
|
330i
|
3.0L
|
|
2001-2005
|
BMW
|
330xi
|
3.0L
|
|
2001-2003
|
BMW
|
525i
|
2.5L
|
|
1999-2000
|
BMW
|
528i
|
2.8L
|
|
2001-2002
|
BMW
|
530i
|
3.0L
|
|
2005
|
BMW
|
X3
|
2.5L
|
|
2001-2006
|
BMW
|
X5
|
3.0L
|
|
1999-2002
|
BMW
|
Z3
|
2.5L
|
|
1998-2000
|
BMW
|
Z3
|
2.8L
|
|
2001-2002
|
BMW
|
Z3
|
3.0L
|
|
2003-2005
|
BMW
|
Z4
|
2.5L
|
|
2003-2005
|
BMW
|
Z4
|
3.0L
|
|
2003-2005
|
Land Rover
|
Range Rover
|
4.4L
|
Product Specifications
Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-4672
Interchange: 2344672, 234 4672, 13477, 11781433075, 11781742050, 11787513962 |
|
Position
|
Exhaust System, Upstream, Front, Pre-Catalytic Converter
|
|
Key Parameters
|
- Sensor Type: Heated
- Connector Gender: Female - Mounting Type: Threaded - Thread Diameter: 0.708 in - Wire Harness Length: 13.39 in - Wire Quantity: 4 Wires - Package Content: 1Pcs 234-4672 Upstream Oxygen Sensor |
Package Content :
2Pcs 234-4672 Upstream Oxygen Sensor