UNITHUB Engine Water Pump for Toyota/Scion 1.5L (AW9406 1702101) — Gasket Included, OEM-Style Durability

UNITHUB Engine Water Pump with gasket AW9406 (1702101) is a direct-replacement cooling pump designed to restore reliable coolant flow for compatible 1.5L Toyota/Scion engines from 2000–2018.

This aftermarket water pump is built to meet or exceed OEM durability and performance for Toyota Yaris, Prius, Echo and Scion xA/xB applications that use 1NZ-FE/1NZ-FXE engines. Constructed with a robust die-cast housing, heat-treated shaft, precision bearings and a coated mechanical seal, the pump is supplied with a gasket and accessories to simplify installation. It’s intended as a straightforward service part for cooling system maintenance or engine repair.

Which vehicles and engines does this pump fit?

This UNITHUB pump is engineered for a range of Toyota and Scion models equipped with 1NZ series engines between model years 2000–2018. Always verify OEM part numbers and compatibility tools before ordering to ensure a correct match for your VIN and engine code.

• Scion xA 2004–2006 (1NZ-FE)
• Scion xB 2004–2006 (1NZ-FE)
• Toyota Echo 2000–2005 (1NZ-FE)
• Toyota Prius 2001–2009 (1NZ-FXE)
• Toyota Yaris 2006–2018 variants (1NZ-FE and related)
• Check interchange numbers: AW9406, 1702101, 252875 and others listed

How is this water pump built for durability and performance?

The pump uses a die-cast iron or aluminum housing combined with coated sealing components and heat-treated internal parts to tolerate high temperatures and repeated cycles. Precision-ground bearings and upgraded impellers reduce wear and help maintain consistent coolant flow under typical driving stresses.

• Die-cast housing for structural strength and heat resistance
• Heat-treated shaft and precision bearings for extended life
• Coated seals and improved mechanical seal kits to minimize leaks
• Uniform coolant channels to restore efficient flow

What comes in the package and how easy is installation?

The unit ships with the pump, a matching gasket, and the accessories pictured to allow direct replacement of the OEM item. The included parts reduce the need for extra purchases, but you should confirm compatibility with your vehicle’s OEM numbers or consult a fitment guide prior to installation.

• Complete pump assembly plus gasket and installation hardware
• Designed for direct replacement with OEM-style mounting points
• Installation requires basic mechanic tools and coolant system bleeding
• Follow torque specs and cooling system refill procedures for best results

How long can I expect this pump to last and what affects its lifespan?

Under normal conditions UNITHUB rates the water pump life at a minimum of around 50,000 km, though real-world lifespan depends on driving habits, coolant condition and maintenance frequency. Using correct coolant type, flushing the cooling system at recommended intervals and addressing thermostat or radiator issues promptly helps prolong pump life.

• Estimated minimum life: roughly 50,000 km (variable by use)
• Longer life with regular coolant changes and proper system maintenance
• Avoid overheating and contaminated coolant to prevent premature failure

Who is this for: Automotive DIYers, independent repair shops and fleet managers needing a reliable, OEM-compatible water pump replacement for Toyota/Scion 1.5L engines. Choose this UNITHUB unit when you want a tested aftermarket pump with upgraded internals, included gasket and straightforward fitment for common Yaris, Prius, Echo and Scion models. Verify vehicle compatibility using OEM numbers or a fitment tool before purchasing.