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Important: Verify connector shape and pins match your original part.
2-Piece O2 Sensor
Fits Mazda CX-7 2.5L (2010-2012)
Replaces OE: 234-5043, 234-4466
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 1-Nov 4
Dispatched quickly from local CA warehouses.
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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$66.95
-
No hidden fees: What you see is what you pay.
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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
|
|---|---|---|---|
|
2010-2012
|
Mazda
|
CX-7
|
2.5L L4
|
Product Specifications
Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number (Upstream)
|
234-5043
Interchange: 2345043, 234 5043, L555-18-8G1, L555188G1, L555 18 8G1, L555-18-8G1A, L555188G1A, 25025068, 24363 |
|
Position (Upstream)
|
Exhaust System, Upstream (Front, Pre-Catalytic Converter)
|
|
Key Parameters (Upstream)
|
- Sensor Type: Heated Oxygen Sensor
- Wire Count: 5-Wire - Connector: Male/Female (Please verify specific fit) - Thread Diameter: 0.711 in (M18 x 1.5) - Wire Harness Length: 19.61 in |
|
Item
|
Specification
|
|---|---|
|
Core Part Number (Downstream)
|
234-4466
Interchange:2344466, 234 4466, L55618861, L556-18-861, L556 18 861, L55618861A, L556-18-861A |
|
Position (Downstream)
|
Exhaust System, Downstream Right (Rear, Post-Catalytic Converter)
|
|
Key Parameters (Downstream)
|
- Sensor Type: Heated Oxygen Sensor
- Wire Count: 4-Wire - Connector: Male - Mounting Type: Threaded - Thread Diameter: 0.708 in (M18 x 1.5) - Wire Harness Length: 28.35 in |
Package Content :
2Pcs (1*234-5043+1*234-4466) Oxygen Sensor