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 radiator hose D. Squeeze each hose cold to judge it - firm and springy is good, mushy or rock-hard is failing - and renew rusty clamps with the hose."
Frequently Asked Questions
What coolant should I refill with?
Use the correct type and mix for your system and top it off after bleeding; do not run plain water long term as it corrodes the alloy.
Why did my old hose fail?
Age hardens or swells the rubber so it cracks or collapses; heat and pressure cycles do it in even without a leak.
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.
Fitment verified by the Kei truck specialists at Oiwa Garage · Listing updated June 2026.