Description
This radiator hose fits the Honda Acty Truck HA3, HA4 (1990-1999). It carries coolant between the engine and radiator on the Acty cooling circuit.
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 radiator hose
- A swollen, cracked, or weeping hose
- Coolant loss or overheating
- Soft, mushy, or hardened rubber
- A hose overdue on an old truck
Features & Function
- Carries coolant on the Acty circuit
- Correct shape and length for this position
- Restores a sealed cooling path
Installation Specifications
- Difficulty: Easy.
- Estimated time: about 30 to 45 minutes.
- Required tools: Hose clamp pliers, a coolant catch pan, and a rag.
Oiwa Garage Tech Note
"This is the radiator water inlet hose. Bleed the cooling system after the hose job so no air pocket sits at the thermostat and cooks the engine."
Frequently Asked Questions
Can a collapsing hose cause overheating?
Yes - a hose that sucks flat under suction chokes coolant flow and overheats the engine, so replace a soft hose promptly.
Do I need to bleed the system after?
Yes. Refill and bleed the air out so the cooling system works and the engine does not overheat.
Fitment verified by the Kei truck specialists at Oiwa Garage · Listing updated June 2026.