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234-5134 234-4473 4PCS Upstream Downstream O2 Oxygen Sensor Compatible with 2003 2004 2005 2006 BMW 325Ci 325i M56 Engine 213-3895 213-3894 250-25004 350-35080 250-25003 350-35008 213-3922
Check if your car is compatible
This helps guarantee fitment of parts.
Delivery Free
Aug 31 - Sep 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.
30-Day Return & Refund
📦 Free Returns & Exchanges: Zero costs to you if the product has any quality issues.
💰 Full Refunds: 100% money-back guarantee within 30 days for defective items.
Review Rewards & Cashback
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💡 How to claim: Email a screenshot of your review to our support team.
$95.95
- No other fees; this is the final payment price
- Get rid of your car's malfunctions and start a pleasant driving journey
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
🚛 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
|
Note
|
|---|---|---|---|---|
|
2003-2006
|
BMW
|
325Ci
|
2.5L L6
|
M56 Engine (M56B25, SULEV)
|
|
2003-2005
|
BMW
|
325i
|
2.5L L6
|
M56 Engine (M56B25, SULEV)
|
Product Specifications
Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-4473 (Upstream, Upper) / 234-5134 (Downstream, Lower)
Interchange: 234-4473, 2344473, 213-3895, 2133895, 17175, 17255, 17243, 17176, ES10922, ES10921, 75-3599, 75-3586, 75-3598, 75-3798, 350-35008, 24317, 24321, SG1180, OS5008, OS5009, 250-25004, 250-25003, 213-3922, 15680, 15681, ES10914, 75-3475, 75-3476, 350-34648, 25658, OS5514, 250-24677 |
|
Position
|
Exhaust System, Upstream (Upper, Sensor 1) & Downstream (Lower, Sensor 2), Pre-cat / Post-cat
|
|
Key Parameters
|
- Sensor Type: Heated Oxygen Sensor
- Wire Quantity: 4 Wires - Package Included: 4 x Oxygen Sensor - Thread Size: M18 × 1.5 (18 mm) - Hex Size: 22 mm - Mounting Style: Screw-In - Wiring Harness Length: Upper 40.67 IN / Lower 38.58 IN - Connector Gender: Male - Terminal Type: Upper Blade / Lower Bullet |