Description
This water pump fits the Honda Acty Truck HA3, HA4 (1990-1999). It circulates coolant through the engine and radiator to control temperature.
In Stock - ships from our California (USA) warehouse
Fast, reliable delivery - no overseas backorder wait.
Vehicle Fitment & Compatibility
Confirm your chassis code against the table below before ordering.
100% Fitment Guarantee
Not sure about fit? Add your chassis/VIN number at checkout and we confirm it before we ship. If a part does not fit your Acty, we exchange it or refund you in full.
Signs you need this water pump
- Coolant weeping from the pump weep hole
- Overheating or a temperature that climbs
- A rough or noisy pump bearing
- You are already doing the timing belt
Features & Function
- Circulates coolant through the engine
- Correct pump for the E07A
- Restores reliable cooling
Installation Specifications
- Difficulty: Advanced.
- Estimated time: about 2 to 4 hours.
- Required tools: A socket set, a coolant catch pan, and belt-timing tools.
Oiwa Garage Tech Note
"On this engine the pump lives behind the timing area, so do it with the timing belt - the labor overlaps and a weeping pump can ruin a fresh belt. Bleed the system after."
Frequently Asked Questions
Should I replace this with the timing belt?
Yes. The labor overlaps, so fitting the water pump during a timing belt job saves a repeat teardown.
Do I need to bleed the cooling system?
Yes. Refill and bleed the air out so the pump moves coolant and the engine does not overheat.
How do I test the water pump?
Look for coolant weeping from the pump weep hole and, with the belt off, feel the pulley for bearing play or roughness. A weep stain or a rough, noisy bearing means the pump is due.
Fitment verified by the Kei truck specialists at Oiwa Garage · Listing updated June 2026.