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Suitable for Downstream O2 Sensor for Mazda 6 2.5L (2009-2013) | 234-4279 250-24859
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Suitable for Downstream O2 Sensor

for Mazda 6 2.5L (2009-2013)
Replaces OE: 234-4279 250-24859
Resolves Symptoms:
Persistent Check Engine Light
Rough Idle
Poor Fuel Economy
Lean Hesitation
Check if your car is compatible This helps guarantee fitment of parts.
Delivery Free
Aug 1 - Aug 4 +
🚚 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.
60-Day Return & Refund
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📦 Free Returns & Exchanges: Zero costs to you if the product has any quality issues.
💰 Full Refunds: 100% money-back guarantee within 60 days for defective items.
Review Rewards & Cashback
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Share an install photo & review to unlock tier rewards:

🥈 Under $50
3% Off Next Order
🥇 $50+ Orders
5% Direct Cashback
🔥 Tip: Buy a Combo Set to easily hit $50 and unlock 5% Cashback!

💡 How to claim: Email a screenshot of your review to our support team.

$35.95
  • No other fees; this is the final payment price
  • Get rid of your car's malfunctions and start a pleasant driving journey
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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
🚛 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
2009-2013
Mazda
6 (GS, i, GT)
2.5L L4

 

 

Product Specifications

Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
Item
Specification
Core Part Number
234-4279
Interchange: 234-4279, 2344279, 250-24859, 25024859, L51918861B, L51918861C, 18120, 22129
Position
Exhaust System, Downstream (Post-Catalytic Converter)
Key Parameters
- Sensor Type: Heated
- Wire Quantity: 4
- Connector Gender: Male
- Thread Diameter: 0.708 in
- Mounting Type: Threaded
- Wiring Harness Length: 34.84 in
- Fit Type: Specific

Package Content :

1PCS 234-4279 O2 Sensor