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Important: Verify connector shape and pins match your original part.
2-Piece Air Fuel Ratio Sensor
Fits Mazda CX-7 2.3L Turbo (07-09)
Replaces OE: 234-5012, 234-4044
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
- 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!
Review Rewards
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- Under $50 Orders: 3% Off Next Order
- $50+ Orders: 5% Direct Cashback
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$45.95
-
No hidden fees: What you see is what you pay.
-
Restore performance: Fix issues and drive with confidence.
Check Engine Light? Find Your Symptoms
🌬️ 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
|
|---|---|---|---|
|
2008-2009, 2011-2012
|
Mazda
|
CX-7 GS Sport
|
2.3L
|
|
2008-2012
|
Mazda
|
CX-7 GT Sport
|
2.3L
|
|
2007-2012
|
Mazda
|
CX-7 Grand Touring Sport
|
2.3L
|
|
2007-2012
|
Mazda
|
CX-7 Touring Sport
|
2.3L
|
|
2007-2009
|
Mazda
|
CX-7 Sport Sport
|
2.3L
|
Product Specifications
Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-5012
Interchange: L33L-18-8G1E9U, L3BT-18-8G1, L33L-18-8G1, L33L-18-8G1B |
|
Position
|
Exhaust System, Upstream (Pre-Catalytic Converter)
|
|
Key Parameters
|
- Type: Heated Oxygen Sensor (Air Fuel Ratio Sensor)
- Wire Configuration: 5-Wire - Harness Length: 31.50 IN (approx. 800 mm) |
|
Core Part Number
|
234-4044
Interchange: 2344542, FS1H-18-861A, KLS6-18-861, KLS6-18-861A, KLS6-18-861B, L33M-18-861B, L33M-18-861B9U, L33M-18-861D, L33M-18-861D9U, L33M-18-861E9U |
|
Position
|
Exhaust System, Downstream (Post-Catalytic Converter)
|
|
Key Parameters
|
- Type: Heated Oxygen Sensor
- Wire Configuration: 4-Wire - Harness Length: 25.98 IN (approx. 660 mm) |