Gledewen O2 Oxygen Sensor 2-Pack for Ford F150 F250 Ranger — Upstream & Downstream, Double-Welded Stainless

Gledewen O2 Sensor 2-pack replaces upstream and downstream oxygen sensors to restore accurate air–fuel monitoring on compatible Ford, Mazda and Lincoln vehicles.

These two oxygen sensors (upstream and downstream) are engineered to match the fit and function of many original equipment part numbers — including 15716, 15717, 15664, and ZZC318861 — so engines can regain proper fuel-trim feedback and emissions control. Made from high-temperature resistant materials with double laser-welded stainless steel bodies, the pair is designed for durability and reliable performance in harsh under-hood conditions. Verify connector shape and part appearance against your original sensor before ordering to ensure correct fitment.

How do these sensors affect engine performance?

Oxygen sensors measure exhaust oxygen levels to help the engine control module adjust fuel delivery. A responsive sensor helps the engine maintain correct air–fuel ratio, which supports smoother idling and more predictable throttle response.

• Detects lean or rich exhaust conditions for better fuel control
• Improves combustion consistency and drivability
• Helps reduce rough idle and hesitation caused by a failing sensor

Will this Gledewen pair fit my specific vehicle?

The set replaces several factory part numbers and fits a broad list of Ford, Mazda, Lincoln and Mercury models across many years. Because connector types and thread sizes vary, you must compare the sensor plug and appearance to your vehicle’s existing sensor before purchase.

• Replaces 15716, 15717, 15718, 15719, ZZC318861, 15664 and related numbers
• Commonly compatible with F150, F250, Explorer, Expedition, Escape, Mazda Tribute, Lincoln Navigator and others
• Review connector shape and thread placement against your original unit

What are the build and warranty details?

These sensors are constructed from high-temperature materials and feature double laser-welded stainless steel housings to resist corrosion and sealing failures. Gledewen backs the product with a 12-month warranty offering replacement or refund if you’re not satisfied.

• Double laser-welded stainless steel body for improved sealing
• High-temperature resistant internals for faster response
• 12-month warranty with replacement or refund via seller contact

How should I install and check these sensors?

Installation is straightforward for anyone with basic automotive tools: raise the vehicle safely, locate the upstream and downstream sensors on the exhaust, unplug the old sensor and remove it with an oxygen-sensor socket, then install the replacement and reconnect. After installation, clear any stored vehicle codes and monitor for normal engine and emissions behavior.

• Use an O2-sensor socket and anti-seize if recommended by installer
• Clear diagnostic trouble codes after replacing sensors
• Confirm connector compatibility before final installation

Who this is for: Mechanics, DIY enthusiasts and fleet owners who need a reliable upstream and downstream oxygen sensor replacement for Ford, Mazda, Lincoln and compatible models. This Gledewen 2-pack is aimed at anyone who wants an affordable, durable sensor pair that matches common OEM numbers, restores accurate air–fuel monitoring, and comes with a one-year warranty for added peace of mind.