Skip to product information
Important: Verify connector shape and pins match your original part.
4-Piece Air Fuel Ratio & O2 Sensor
Fits Ford Edge Explorer & Mazda CX-9 3.5L 3.7L V6 (2011-2015)
Replaces OE: 234-5038, 234-4489
Resolves Symptoms
- Check Engine Light (P0420/P0171)
- Rough Idle & Hesitation
- Poor Fuel Economy (MPG)
- Failed Emissions Inspection
Estimated Delivery
Free
Ordered
Oct 15
Prepared
Oct 15-Oct 16
Delivered
Oct 17-Oct 20
Dispatched quickly from local US 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
Share an install photo & review to unlock:
- Under $50 Orders: 3% Off Next Order
- $50+ Orders: 5% Direct Cashback
*Email screenshot of your review to support to claim.
Check if your car is compatible
This helps guarantee fitment of parts.
⏳ Loading fitment data...
$85.95
-
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
|
|---|---|---|---|
|
2011-2014
|
Ford
|
Edge
|
3.5L/3.7L
|
|
2011-2012
|
Ford
|
Explorer
|
3.5L
|
|
2012-2014
|
Lincoln
|
MKX
|
3.7L
|
|
2011-2013
|
Mazda
|
6
|
3.7L
|
|
2011-2015
|
Mazda
|
CX-9
|
3.7L
|
Product Specifications
Warranty & Support: 2 Years + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-5038
Interchange: 2345038, 234 5038, 9E5Z9F472D, BL3Z9F472A, BL3Z9G472A, CA38188G1, ZZDL18861 |
|
Position
|
Exhaust System, Upstream, Front, Upper, Pre-Catalytic Converter
|
|
Key Parameters
|
- Sensor Type: Heated Oxygen Sensor
- Wire Quantity: 5 Wires - Wire Harness Length: 11.57 IN - Connector Gender: Male - Thread Diameter: 0.711 IN - Fitment Type: Specific Fit |
|
Core Part Number
|
234-4489
Interchange: 2344489, 234 4489, BE5Z9G444D, BH6Z9G444A, CA3918861, CA4118861, CK4Z9G444D |
|
Position
|
Exhaust System, Downstream, Rear, Post-Catalytic Converter
|
|
Key Parameters
|
- Sensor Type: Heated Oxygen Sensor
- Wire Quantity: 4 Wires - Wire Harness Length: 12.44 IN - Connector Gender: Female - Thread Diameter: 0.708 IN - Mounting Type: Threaded - Fitment Type: Specific Fit |
Package Content :
4Pcs (2*234-5038 Upstream+2*234-4489 Downstream) Oxygen Sensor