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SKU:
NLT1I00265
Ships for free in 2–4 business days.
2013-2015 Ford Taurus Explorer Upstream O2 Sensor 234-5038
$59.99
In Stock
$59.99
Sale price
$59.99
Regular price
This new aftermarket upstream oxygen sensor replaces 234-5038 for compatible 2013-2015 Ford Taurus and Explorer 3.5L and Lincoln MKZ 3.7L applications.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Ford Taurus 3.5L V6 (2013-2015; upstream position)
- Ford Explorer 3.5L V6 (2013-2015; upstream position)
- Lincoln MKZ 3.7L V6 (2013-2015; verify bank and production date)
Product Overview
A failed heater, slow air-fuel response, wiring damage, or mixture code may call for an upstream sensor after intake leaks, exhaust leaks, fuel pressure, misfires, and harness integrity are checked. The front sensor reports mixture information used by the engine computer, so correct bank and connector are critical.
Ford uses multiple upstream and downstream sensors that can look similar. Confirm engine, bank, sensor number, emissions calibration, wire count, plug keying, lead length, and mounting position. Do not replace a sensor solely because a lean or rich code is stored.
Key Features & Performance
- Heated upstream oxygen / air-fuel sensor
- Direct connector for matching Ford and Lincoln applications
- Supports closed-loop fuel feedback
- Replacement for a tested heater or response failure
Replaces Part Numbers
- 234-5038
- 18088
- 24397
Common Uses
- Replacing an upstream heater-circuit failure
- Repairing a sensor with damaged wiring near the exhaust
- Correcting a confirmed slow or biased mixture signal
Technical Specifications
- Product Type: Heated upstream oxygen sensor
- Position: Upstream / before catalytic converter
- Engines: 3.5L and 3.7L V6 compatible applications
- Condition: New aftermarket replacement
Installation & Fitment
- Use scan data to identify the correct bank and position
- Repair intake and exhaust leaks first
- Compare connector keying and lead length
- Route the lead in factory clips away from heat
- Review fuel trims and sensor response after installation
Compatibility Notice
Northline Parts does its best to list all known compatible models. The correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Can a vacuum leak make an O2 sensor code appear? A: Yes. Unmetered air can drive fuel trims lean even when the sensor is reporting correctly.
Q: Is this a downstream sensor? A: No. It is listed for the upstream position on matching applications.
Q: Will one sensor fit every bank? A: Not necessarily. Verify bank, connector, lead length, and part reference.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: 234-5038 upstream O2 sensor, 2013-2015 Ford Taurus oxygen sensor, Ford Explorer 3.5 air fuel sensor, Lincoln MKZ 3.7 upstream sensor, Ford mixture code sensor replacement
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.