Gledewen O2 Oxygen Sensor Pair for Ford F150 F250 Ranger — Upstream & Downstream, Direct Fit High-Temp Stainless

Gledewen O2 sensor pair (upstream and downstream) replaces worn oxygen sensors to restore accurate air–fuel monitoring and help stabilize engine performance.

This two-piece oxygen sensor kit is designed as a direct replacement for many Ford, Lincoln, Mazda and Mercury vehicles. Each sensor is manufactured with high-temperature resistant materials and a welded stainless steel housing to withstand exhaust conditions. Before ordering, compare connector style and pin configuration with your original sensor to confirm fit — incompatible plugs will not work.

Which vehicles and part numbers does this sensor set replace?

These sensors are compatible with a wide range of late-1990s to 2014 Ford platforms and related models from Lincoln, Mazda and Mercury. The listing replaces several OEM and aftermarket references for easier cross-checking.

• Common replacement references: 15716, 15717, 15718, 15719, ZZC318861, XR3Z9G444CA, 15664, 234-4401, 234-4046.
• Fits models including Ford F150/F250/F350, Ranger, Expedition, Explorer, E-Series, Bronco, Crown Victoria, Focus, Taurus, Lincoln Navigator, Mazda Tribute, Mercury Mariner.
• Always match the electrical plug and sensing location (upstream vs downstream) to the original sensor before installation.

How does installing these oxygen sensors affect vehicle performance?

Oxygen sensors monitor exhaust oxygen content so the engine control unit can adjust fuel delivery and ignition timing. Replacing a slow or failing sensor helps the ECU regain accurate readings, which can reduce rough idling, poor throttle response and uneven fuel economy.

• Restores precise air–fuel ratio feedback to the engine computer.
• Helps correct drivability issues linked to faulty O2 readings.
• Supports emissions system performance by providing reliable downstream monitoring.

What are the construction and durability features of these sensors?

Gledewen sensors are built for harsh exhaust environments using high-temperature materials and a double laser-welded stainless steel body. Sealing and submersible construction reduce the chance of contamination and extend service life under heat cycling and vibration.

• High-temperature resistant materials for faster response times.
• Double laser-welded stainless steel housing for long-term sealing.
• Designed to withstand exhaust heat, moisture, and corrosive gases.

What warranty and support come with the purchase?

Each sensor pair is backed by a 12-month warranty for replacement or refund should you encounter defects or fitment issues. Contact the seller through the marketplace messaging system to initiate service within the warranty period.

• 12-month limited warranty covering manufacturing defects.
• Easy return or replacement service via the seller’s contact channel.
• Customer support recommended if plug shape differs from your original part.

Who is this for: This Gledewen O2 sensor pair is intended for DIY mechanics, independent repair shops and fleet technicians who need a direct-fit replacement for Ford, Lincoln, Mazda or Mercury vehicles listed in the compatibility references. It's a practical choice if your vehicle shows signs of oxygen sensor failure or if diagnostics point to upstream or downstream sensor faults — just verify connector type and sensor location against your original part before purchasing.