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Important: Verify connector shape and pins match your original part.
Upstream 5-Wire Wideband O2 Sensor for BMW X3 X5 120i 320i 545i | 11787530282
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Upstream 5-Wire Wideband O2 Sensor

Fits BMW X3 X5 120i 320i 545i
Replaces OE: 11787530282
Resolves Symptoms
  • Check Engine Light (P0420/P0171)
  • Rough Idle & Hesitation
  • Poor Fuel Economy (MPG)
  • Failed Emissions Inspection
Estimated Delivery Free
Ordered
Oct 15
Prepared
Oct 15-Oct 16
Delivered
Oct 17-Oct 20
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
+
  1. Check OE: Find original part no. & plug.
  2. Compare Photos: Match plug with our images.
  3. Verify YMM: Confirm via fitment tool.
  4. Review Specs: Check pins & dimensions.
  5. 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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$39.95
  • No hidden fees: What you see is what you pay.
  • Restore performance: Fix issues and drive with confidence.
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If problem with product: Free Returns & Refunds
Check Engine Light? Find Your Symptoms
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🌬️ 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
Note
2003-2007
BMW
1 Series 120i
Chassis: E87; Engine: N46; Build: 2004/06; Body: 5 doors
2004-2007
BMW
3 Series 320i
Chassis: E90; Engine: N46; Build: 2004/12; Body: Saloon
2004-2007
BMW
3 Series 320i
Chassis: E90; Engine: N46; Build: 2005/03; Body: Saloon
2004-2007
BMW
3 Series 320i
Chassis: E90; Engine: N46; Build: 2005/04; Body: Saloon
2004-2007
BMW
3 Series 320i
Chassis: E90; Engine: N46; Build: 2006/08; Body: Saloon
2004-2007
BMW
3 Series 320i
Chassis: E91; Engine: N46; Build: 2005/09; Body: Wagon
2005-2006
BMW
3 Series 320si
Chassis: E90; Engine: N45; Build: 2006/03; Body: Saloon

Product Specifications

Warranty & Support: 2 Years + 24/7 Technical Support
Item
Specification
Core Part Number
11787530282
Interchange: 1178 7530 282, 7566021, 7566021-01, 11787530281, 1178 7530 281, 7566020, 7566020-01, 7566023, 7566023-01, 7566022, 7566022-01, 11787530285, 1178 7530 285, 7566024, 7566024-01
Position
Exhaust System, Upstream (Pre-Catalytic Converter)
Key Parameters
- Sensor Type: Heated Wideband Air-Fuel Ratio (AFR/Lambda) Sensor
- Wire Configuration: 5-Wire
- Wire Length: 570 mm
- Mounting Style: Screw-In (Threaded)
- Features: Improves exhaust purification rate and engine performance
- Construction: High-temperature and corrosion-resistant materials