Skip to product information
Important: Verify connector shape and pins match your original part.
2-Piece Downstream O2 Sensor
Fits Ford F-150 Explorer Mustang Police
Replaces OE: 234-4490
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
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...
$31.95
-
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
|
|---|---|---|---|
|
2013-2015
|
Lincoln
|
MKS
|
3.7L
|
|
2013-2015
|
Lincoln
|
MKT
|
3.7L
|
|
2011-2012
|
Lincoln
|
MKZ
|
2.5L
|
|
2013-2015
|
Lincoln
|
MKZ
|
3.7L
|
|
2011
|
Mercury
|
Mariner
|
2.5L, 3.0L
|
|
2011
|
Mercury
|
Milan
|
2.5L, 3.0L
|
|
2011-2012
|
Ford
|
Escape
|
2.5L, 3.0L
|
|
2013-2015
|
Ford
|
Explorer
|
3.5L
|
|
2011-2014
|
Ford
|
F-150
|
3.5L, 3.7L
|
|
2013-2015
|
Ford
|
Flex
|
3.5L
|
|
2011-2012
|
Ford
|
Fusion
|
3.0L, 2.5L
|
|
2011-2014
|
Ford
|
Mustang
|
3.7L, 5.0L, 5.4L
|
|
2013-2014
|
Ford
|
Police Interceptor Sedan
|
3.5L, 3.7L
|
|
2013-2014
|
Ford
|
Police Interceptor Utility
|
3.7L
|
|
2013-2015
|
Ford
|
Taurus
|
3.5L
|
|
2015
|
Ford
|
Transit-150
|
3.7L
|
|
2015
|
Ford
|
Transit-250
|
3.7L
|
|
2015
|
Ford
|
Transit-350
|
3.7L
|
Product Specifications
Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
|
Item
|
Specification
|
|---|---|
|
Core Part Number
|
234-4490
Interchange: BE5Z9G444A, BE5Z9G444B, BE5Z9G444C, BL8Z9G444A, BR3Z9G444A, CK4Z9G444C |
|
Position
|
Exhaust System, Downstream (Left & Right, Post-Catalytic Converter)
|
|
Key Parameters
|
- Sensor Type: Heated Narrow-Band
- Wire Quantity: 4 Wires - Connector Gender: Female - Mounting Type: Threaded - Thread Diameter: 0.708 IN - Wire Harness Length: 17.52 IN - Fit Type: Specific |
Package Content :
2Pcs 234-4490 Oxygen Sensor