Maxfavor Upstream Oxygen O2 Sensor for 2009-2015 Ford — Direct-Fit Replacement, OEM Match

Maxfavor upstream oxygen sensor replacement for select 2009–2015 Ford models is a direct-fit O2 sensor built to match factory specifications and restore accurate air-fuel sensing.

If your Ford F-150, Explorer, Mustang, Escape or other compatible model from 2009–2015 is showing oxygen-sensor related codes or reduced engine efficiency, this Maxfavor upstream O2 sensor is offered as a like-for-like replacement. It matches common OEM part numbers and connectors so you can swap the component without major wiring or programming changes. Below you’ll find how it fits, how to install it, and what to check before buying.

Which Ford models and engines does this Maxfavor upstream O2 sensor fit?

This sensor is designed for a broad range of Ford vehicles and engine sizes produced from 2009 through 2015. Always verify fitment by comparing your existing sensor and plug to the product photos and OEM numbers listed. If the numbers and connector match, the part is intended as a direct replacement.

• Commonly compatible: 2011–2015 F-150 3.5L V6, 2009–2010 F-150 4.6L V8, 2011–2014 F-150 5.0L V8
• Also fits: 2009–2010 F-150 5.4L, 2010–2014 F-150 6.2L, 2009–2014 E-150/E-250 4.6L/5.4L
• Other fits include 2009–2012 Escape 2.5L, 2011–2014 Expedition 5.4L, 2013–2015 Explorer 3.5L
• See listing for additional models like Flex, Focus, Mustang, Taurus and more

How do I confirm this sensor matches my original part?

Before purchasing, compare the replacement’s physical plug, thread size, and OEM reference numbers to your vehicle’s existing upstream oxygen sensor. The listing provides multiple OE-equivalent part numbers to cross-check against the sensor you remove from the exhaust pipe.

• Compare part numbers such as 234-5113, DY1183, and SG1996
• Verify connector shape and pin count match your factory harness
• Check thread pitch and hex size against the old sensor for proper fit
• Refer to product photos to confirm overall sensor length and wire routing

What are the basic installation steps for the upstream O2 sensor?

Installation is straightforward for anyone comfortable working on a vehicle’s exhaust system. Use an oxygen-sensor socket and basic hand tools; ensure the engine and exhaust are cool to avoid burns and prevent damage to the replacement wiring during tightening.

• Locate and remove the old upstream sensor with the correct socket
• Compare the new sensor to the removed unit for identical connector and thread
• Clean the sensor port threads and hand-start the new sensor before tightening
• Route wiring away from hot components, reconnect harness, and clear codes if necessary

What cautions and support does Maxfavor provide?

Maxfavor advises careful verification of vehicle year, make and model against the fitment list and photos. If the sensor doesn’t match your vehicle, returns are accepted when the item is clean and well-packaged; customer support typically replies within 24 hours to help with fitment questions.

• Confirm vehicle details and compare photos before ordering
• Follow torque guidance and avoid damaging the sensor wiring during installation
• Contact Maxfavor support for fitment clarification or return instructions
• Return policy applies if part is unused and packaged properly

Who is this for: This Maxfavor upstream oxygen sensor is for DIY mechanics, independent repair shops, and owners of compatible 2009–2015 Ford vehicles who need a factory-style replacement sensor. It’s intended for those who can identify their original sensor by part number and connector, want a direct-fit component, and are prepared to follow basic installation steps or have a technician install it.