Cold Air Intake for Ford Explorer (1997-2001) & Mercury Mountaineer (1997-2000) 5.0L

High-Flow Cold Air Intake for 1997-2001 Ford Explorer & 1997-2000 Mercury Mountaineer (5.0L Windsor / UN105)

Direct Bolt-On Airflow Optimization: Replaces the restrictive factory air box and convoluted rubber intake tubing to lower intake air temperatures, reduce turbulence, and increase volumetric efficiency on the 5.0L V8 engine.

The Stock Explorer, Mountaineer Airflow Bottleneck

The factory intake system on the UN105 Explorer and Mountaineer prioritizes NVH (Noise, Vibration, and Harshness) reduction over performance. The OEM setup utilizes corrugated rubber hoses and a baffled plastic airbox that severely disrupts laminar airflow before it reaches the throttle body. Over years of heat cycling around the 5.0L Windsor block, the stock plastic resonators and rubber bellows degrade, harden, and become prone to unmetered vacuum leaks. Furthermore, the enclosed factory box traps ambient engine heat, resulting in severe heat soak. This robs the V8 of vital oxygen density, suppressing the crucial low-end torque required for towing and off-road hauling.

The Engineering Solution

This cold air intake system eliminates factory restriction by utilizing mandrel-bent, T-6063 aerospace-grade aluminum piping with a 3-inch outer diameter. The smooth internal bore removes the turbulence caused by OEM corrugated tubing, ensuring a steady, high-velocity stream of dense air reaches the intake manifold. The polished aluminum construction provides superior structural rigidity while actively dissipating residual engine bay heat. Paired with a high-flow dry air filter element, the system drastically increases total filtration surface area without the mass-airflow (MAF) sensor fouling risks common with heavily oiled filters. The kit integrates durable PVC couplers, replacement vacuum hoses, and heavy-duty clamps to ensure a permanent, leak-proof seal that reliably withstands engine torque deflection under heavy loads.

Technical Specifications

Compatibility

• 1997-2001 Ford Explorer 5.0L V8
• 1997-2000 Mercury Mountaineer 5.0L V8

The Ford, Mercury Durability Standard

Engineered to complement the rugged, cast-iron architecture of the 5.0L Windsor, this intake upgrades your SUV’s breathing capacity for improved throttle response, sustained pulling power during heavy towing, and enhanced reliability in demanding off-road environments. Note: Intake kits are sold for off-road use only.

Common Questions

Will this cold air intake fit my 1997-2001 Ford Explorer or 1997-2000 Mercury Mountaineer?
Yes, this cold air intake is a direct bolt-on replacement for the 1997-2001 Ford Explorer and 1997-2000 Mercury Mountaineer equipped with the 5.0L Windsor V8 engine.

Will this intake work on a 4.0L V6 Explorer or Mountaineer?
This system is engineered specifically for the 5.0L Windsor V8 engine and throttle body layout.

What is included in the kit?
The kit includes a 3-inch outer diameter mandrel-bent T-6063 polished aluminum intake pipe, a high-flow dry air filter element, durable PVC couplers, replacement vacuum hoses, and heavy-duty clamps.

Does the air filter require oil?
The included filter is a dry high-flow element, which provides increased filtration surface area without the risk of filter oil fouling the mass-airflow (MAF) sensor.

How does this upgrade improve on the factory UN105 intake?
It replaces the baffled plastic factory airbox and corrugated rubber intake hose with smooth 3-inch mandrel-bent aluminum tubing to reduce airflow turbulence and lower intake air temperatures.