Performance Water Pump Kit for Ford Explorer (1997-2010) 4.0L

Heavy-Duty Replacement Water Pump and Belt Kit for 1997-2010 Ford Explorer (UN105 / U152 / U251)

What it Does: The Performance Water Pump Kit replaces degraded cooling system components on the 1997-2010 Ford Explorer to restore optimal coolant circulation, prevent engine overheating, and eliminate accessory drive belt slippage.

The Stock Ford Explorer Cooling System Weakness

The factory cooling system on the 4.0L Cologne SOHC V6 is prone to premature mechanical seal failure and shaft bearing degradation caused by continuous thermal cycling and heavy towing loads. Over time, coolant seeps past the factory carbon seals, contaminating the internal bearing grease and resulting in impeller shaft play, severe fluid leaks, and sudden water pump seizure. Furthermore, aged factory serpentine belts stretch and glaze over, causing rotational slippage that starves the engine block of proper coolant flow under high-demand operating conditions.

The Engineering Solution

Engineered for sustained thermal reliability, this kit pairs a direct-replacement water pump housing with a heavy-duty EPDM drive belt. The pump features a precision-cast aluminum housing, an optimized mechanical face seal, and an anti-cavitation impeller engineered to maintain high-velocity coolant delivery without fluid turbulence. Paired with a heat-resistant, high-tensile accessory drive belt that eliminates deflection, this system secures stable operating temperatures and protects the UN105, U152, and U251 platforms from catastrophic thermal spikes.

What's Included

• 1 Water Pump Assembly
• 1 Serpentine Accessory Drive Belt

Technical Specifications

Compatibility

• 1997-2010 Ford Explorer 4.0L SOHC V6 (VIN Code E, K)

Frequently Asked Questions & Fitment Warnings

Does this fit the UN105, U152, and U251 Explorer?

Yes, this is a direct fit for the 1997-2010 Ford Explorer equipped with the 4.0L Cologne SOHC V6 engine. Does not fit 4.6L Modular V8 models or early 4.0L OHV pushrod engines.

Should the cooling system be flushed during installation?

Yes, thoroughly flush the coolant circuit to eliminate debris and contaminants that can abrade the new water pump mechanical face seal.

The Ford Truck Durability Standard

Built to handle heavy payload capacities and sustained highway towing, this heavy-duty cooling assembly provides dependable thermal dissipation to keep your drivetrain operating reliably under extreme loads.