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Important: Verify connector shape and pins match your original part.
Suitable for 2Pcs O2 Sensor Up/Down for Mazda 6 2.3L (2006-2008 Non-Calif) | 234-5011 234-4394
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2-Piece O2 Sensor Up/Down

Fits Mazda 6 2.3L (2006-2008 Non-Calif)
Replaces OE: 234-5011, 234-4394
Resolves Symptoms
  • Check Engine Light (P0420/P0171)
  • Rough Idle & Hesitation
  • Poor Fuel Economy (MPG)
  • Failed Emissions Inspection
Estimated Delivery Free
Ordered
Oct 30
Prepared
Oct 30-Oct 31
Delivered
Nov 13-Nov 21
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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$78.95
  • 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
Engine/Displacement
2006-2008
Mazda
6 (GS, GT, i)
2.3L L4
2006-2007
Mazda
6 Mazdaspeed
2.3L L4 (Turbo)

Product Specifications

Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
Item
Specification
Core Part Number
234-5011
Interchange: 2345011, 234 5011, 25025069, L393-18-8G1A, L393188G1A, L393-18-8G1B, L393188G1B, L393-18-8G1C, L393188G1C, 15374, 754013, 24360, SU13080, 5S11627, F 00E 263 027
Position
Exhaust System, Upstream (Front, Pre-Catalytic Converter)
Key Parameters
- Type: Heated Oxygen Sensor
- Wire Count: 5-Wire
- Connector: Male
- Thread Diameter: 0.711 in (M18 x 1.5)
- Wire Harness Length: 24.41 in
- Performance: Improves fuel efficiency with stable and durable operation
Item
Specification
Core Part Number
234-4394
Interchange: 2344394, 234 4394, 250-24693, 25024693, 15386, 22018, L39418861, 06365PHMA20, L39418861A
Position
Exhaust System, Downstream (Rear, Post-Catalytic Converter)
Key Parameters
- Type: Heated Oxygen Sensor
- Wire Count: 4-Wire
- Connector: Female
- Mounting: Threaded
- Thread Diameter: 0.708 in (M18 x 1.5)
- Wire Harness Length: 21.65 in

 

Package Content :

2Pcs (1*234-5011 Upstream+1*234-4394 Downstream) Oxygen Sensor