A-tnewb Oxygen Sensor Kit for Ford F-150 5.0L & 6.2L (2011-2014) — 4PC Upstream & Downstream Direct-Fit

A-tnewb 4PCS Oxygen Sensor kit replaces left/right upstream and downstream O2 sensors for Ford F-150 5.0L and 6.2L models (2011–2014) to restore accurate exhaust monitoring and engine fuel control.

This complete set contains four engineered oxygen sensors designed to match the fit and function of the original equipment on compatible 2011–2014 Ford F-150 trucks with 5.0L or 6.2L V8 engines. Each sensor monitors exhaust oxygen levels and sends voltage signals to the engine control module so air–fuel mixtures can be trimmed. A direct-fit replacement approach reduces installation time and avoids wiring or harness modifications when used on specified model years and engine options.

How will these sensors affect engine performance?

Replacing faulty O2 sensors helps the engine management system maintain correct air–fuel ratios, supporting smoother operation and consistent power delivery. While not a performance upgrade, fresh sensors restore the vehicle’s ability to adapt fueling under varying loads and temperatures.

• Restores accurate oxygen readings to the ECU for better combustion control
• Helps the engine avoid lean or rich running conditions
• Reduces drivability issues caused by incorrect sensor signals

Which specific sensor numbers are included and where do they go?

The kit includes the upstream left and right sensors plus two downstream sensors for the exhaust system. Part numbers correspond to common OE references so you can match them to the original sensors on your truck.

• Upstream left: replaces 234-5076
• Upstream right: replaces 234-5113
• Downstream left & right: each replaces 234-4494
• Sold as a 4-piece set to cover both banks and both sensor banks downstream

What should I expect during installation?

These are direct-fit replacements for the specified Ford F-150 model years and engines, so standard O2 sensor tools and basic mechanical skills are typically all that’s required. Tightening to manufacturer torque specs and confirming connector fitment prevents leaks and ensures correct signal transmission.

• Direct-fit connectors and thread sizes match factory locations
• Standard oxygen-sensor socket or open-ended wrench needed
• Inspect harness and threads; apply anti-seize only if instructed by service manual

Who this kit is for: This four-sensor set is for owners, independent mechanics, and fleet technicians who need to replace failing or aged O2 sensors on 2011–2014 Ford F-150 trucks with 5.0L or 6.2L V8 engines. It’s ideal when both upstream and downstream sensors show trouble codes, when you’re performing exhaust work, or when you want a matched replacement set to ensure consistent exhaust monitoring across both banks.

Quality and guarantee: Each A-tnewb oxygen sensor is manufactured from durable materials and tested before shipping. The product is backed by a one-year unlimited-mileage limited guarantee to cover manufacturing defects, allowing you to replace all four sensors with confidence.