Description
This A/C filter fits the Honda Acty Truck HA3, HA4 (1990-1999). It cleans the air entering the cabin through the heater and A/C box.
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 A/C filter
- Weak airflow from the vents
- Musty or dusty smell when the fan runs
- Visible debris in the filter
- You have never changed it on a used import
Features & Function
- Cleans incoming cabin air
- Restores vent airflow
- Simple, low-cost cabin maintenance
Installation Specifications
- Difficulty: Easy.
- Estimated time: about 10 to 20 minutes.
- Required tools: Usually no tools, sometimes a screwdriver.
Oiwa Garage Tech Note
"The A/C unit sits underneath the driver-side seat. Lift the seat up and inspect the cabin filter. Sometimes the truck is so old the filter has completely disintegrated."
Frequently Asked Questions
How do I know if my truck has a filter slot?
Check the listing photos and your heater box; if a slot is present, this element drops in. If you are unsure, contact Oiwa Garage before ordering.
How do I know the A/C filter is clogged?
Run the fan on high; weak airflow from clean vents usually means a blocked filter. Pull it and inspect for dust and debris - if it is dirty, replace it.
Does my truck even have a filter slot?
This A/C filter only fits trucks that actually have A/C. The catch is that every Acty climate panel shows red for heat and blue for cold even on trucks without A/C, so people assume they have it when they do not. You only have A/C if there is a separate square button you push in to engage it - that is the truck this filter is for.
Fitment verified by the Kei truck specialists at Oiwa Garage · Listing updated June 2026.