AISIN Engine Water Pump WPT-044 for Toyota 4Runner/Tacoma (Gasket Included) — OE Quality, Carbon-Ceramic Seal

AISIN GENUINE WPT-044 is a new, OE-quality engine water pump with gasket designed to restore reliable coolant circulation in compatible Toyota 4Runner, T100, and Tacoma models.

This replacement water pump is built by AISIN, a leading original equipment parts manufacturer, using all-new components and improved materials to resist rust, corrosion, and coolant scaling. The WPT-044 features precision rotors, smooth coolant channels, ball bearing support, and a carbon-ceramic mechanical seal to maintain steady flow and long service life. It ships with a matched gasket and is intended as a direct-fit option for specified Toyota engines — always confirm vehicle and engine compatibility with the fit checker before purchase.

How does this water pump improve engine cooling performance?

The WPT-044 is engineered to maintain consistent coolant flow through optimized channel geometry and efficient rotor design. Ball bearings reduce mechanical drag while the carbon-ceramic seal minimizes leakage and wear under operating temperatures. Together these features promote stable engine temperatures and reduce the chance of premature pump failure.

• Smoothed coolant channels for uninterrupted flow
• Efficient rotor design to improve circulation
• Ball bearings for reduced friction and longer life
• Carbon-ceramic mechanical seal for reliable sealing

What materials and construction make this pump durable?

AISIN selects materials to resist common degradation factors like rust, corrosion, and mineral deposits from coolant. This unit is manufactured from all-new, not remanufactured, components and uses upgraded alloys and seal materials to extend service intervals. The included gasket is matched to the housing to reduce installation leaks.

• All-new components — no remanufactured parts
• Corrosion-resistant housing materials
• Seal compounds chosen for thermal and chemical durability
• Gasket supplied for correct sealing on installation

Which vehicles and engines is the AISIN WPT-044 compatible with?

The WPT-044 is manufactured to fit several Toyota trucks and SUVs across multiple years, but fitment can depend on engine type and model sub-variants. Always verify the part against your VIN or use the fitment checker on the product page to ensure correct application before ordering.

• Compatible models include select Toyota 4Runner, T100, and Tacoma years
• Common model years covered: 1994–2000 and select later years for 4Runner/Tacoma
• Compatibility may vary by engine — confirm with vehicle-specific fit tools
• Gasket included to match the pump housing for listed applications

How straightforward is installation and what should I prepare?

Installation follows standard water pump replacement procedures but may require removing accessories, belts, and hoses depending on the vehicle. Replace coolant and follow manufacturer torque specs; replacing the thermostat and inspecting the belt/drive components at the same time is recommended for a thorough cooling-system service.

• Standard mechanical skills and tools required for removal and installation
• Replace coolant and bleed system after fitting the new pump
• Inspect belt, pulleys, and thermostat during service
• Use correct torque values and gasket sealant if specified

Who is this for: The AISIN GENUINE WPT-044 suits owners and mechanics who need an OE-quality replacement for the cooling system in compatible Toyota 4Runner, T100, and Tacoma vehicles. It’s aimed at anyone seeking a long-lasting, factory-grade water pump built from new components — ideal for routine maintenance, repairs after seal or bearing failure, or when upgrading aging cooling hardware to restore reliable engine temperature control.