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Important: Verify connector shape and pins match your original part.
4Pcs O2 Sensor Set for BMW E90 320i E81 120i (2008-2016) | 11787535269 11787545243 11787570481 11787570104
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4-Piece O2 Sensor Set

Fits BMW E90 320i E81 120i (2008-2016)
Replaces OE: 11787535269, 11787545243, 11787570481, 11787570104
Resolves Symptoms
  • Check Engine Light (P0420/P0171)
  • Rough Idle & Hesitation
  • Poor Fuel Economy (MPG)
  • Failed Emissions Inspection
Estimated Delivery Free
Ordered
Nov 12
Prepared
Nov 12-Nov 13
Delivered
Nov 26-Dec 4
Requires overseas shipment. Upgrade to expedited shipping at checkout if urgent.
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
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  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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Check if your car is compatible This helps guarantee fitment of parts.
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$100.95
  • 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/Series
Engine/Displacement/Power
2008-2016
BMW
3 Series (E90) 320i Saloon
N46N / 2.0L (2000cc) / 115hp
2008-2016
BMW
3 Series (E90) 320i Saloon
N46B20BD / 2.0L (1995cc) / 115hp
2006-2011
BMW
1 Series (E81) 120i Hatchback
N46 B20B, N46 B20C / 2.0L (1995cc) / 115hp
2003-2011
BMW
1 Series (E87) 120i Hatchback
N46 B20 A, N46 B20 B, N46 B20 BD, N46 B20 C, N46 B20 CC / 2.0L (1995cc) / 115hp
2008-2013
BMW
1 Series Convertible (E88) 120i
N46 B20 B, N46 B20 C, N46 B20 E / 2.0L (1995cc) / 115hp
2009-2013
BMW
1 Series Coupe (E82) 120i
N46 B20 B, N46 B20 BD, N46 B20 C, N46 B20 E / 2.0L (1995cc) / 115hp

 

Product Specifications

Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
Item
Specification
Core Part Number
Upstream Sensor: 11787535269, 11787570104
Downstream Sensor: 11787545243, 11787570481
Interchange: 11787535269, 11787545243, 11787570481, 11787570104
Position
Upstream Sensor: Exhaust System, Upstream (Pre-Catalytic Converter)
Downstream Sensor: Exhaust System, Downstream (Post-Catalytic Converter)
Key Parameters
- Sensor Type: Heated Oxygen Sensor
- Upstream and Downstream sensors must be used in matched pairs. ----- Select the correct part number based on vehicle position.