2-Piece O2 Sensor Up/Down
- Check Engine Light (P0420/P0171)
- Rough Idle & Hesitation
- Poor Fuel Economy (MPG)
- Failed Emissions Inspection
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
- Check OE: Find original part no. & plug.
- Compare Photos: Match plug with our images.
- Verify YMM: Confirm via fitment tool.
- Review Specs: Check pins & dimensions.
- Purchase: Buy confidently once matched!
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- Under $50 Orders: 3% Off Next Order
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-
No hidden fees: What you see is what you pay.
-
Restore performance: Fix issues and drive with confidence.
Check Engine Light? Find Your Symptoms
- P0134No Activity Detected
- P0135Heater Circuit Malfunction
- P0137/38Circuit Low/High Voltage
- P2195Signal Stuck Lean
- P0030/31Heater Control Circuit
- P0171/74System Too Lean
- P0172System Too Rich
- P2096Post-Catalyst Trim Too Lean
- P0087Fuel Rail Pressure Low
- P0201-04Injector Circuit Open
- P0420Efficiency Below Threshold (B1)
- P0430Efficiency Below Threshold (B2)
- P0300Random Misfire
- P0301-06Cylinder-Specific Misfire
Automotive-Leader Sensors
Vehicle Compatible
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Year
|
Make
|
Model
|
Engine/Displacement
|
|---|---|---|---|
|
2006-2008
|
Mazda
|
6 (GS, GT, i)
|
2.3L L4
|
|
2006-2007
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Mazda
|
6 Mazdaspeed
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2.3L L4 (Turbo)
|
Product Specifications
|
Item
|
Specification
|
|---|---|
|
Core Part Number
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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 |
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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
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234-4394
Interchange: 2344394, 234 4394, 250-24693, 25024693, 15386, 22018, L39418861, 06365PHMA20, L39418861A |
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Position
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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