Description
This rear diffuser fits the Honda Acty Truck HA3, HA4 (1990-1999). It dresses the rear underbody with a diffuser-style panel.
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.
Reasons to choose this rear diffuser
- You want a sportier rear look
- A dress-up or styling build
- A missing or damaged panel
Features & Function
- Dresses the rear underbody
- Styled for the Acty rear
- A bolt-on styling upgrade
Installation Specifications
- Difficulty: Moderate.
- Estimated time: about 1 to 1.5 hours.
- Required tools: A drill and basic hand tools.
Oiwa Garage Tech Note
"This is the rear diffuser. Dry-fit and mark the mounting points before you drill anything. Space the fasteners evenly so the panel sits straight."
Frequently Asked Questions
How do I fit the diffuser straight?
Dry-fit and mark the mounting points before you drill, and space the fasteners evenly so the panel sits square and centered.
Fitment verified by the Kei truck specialists at Oiwa Garage · Listing updated June 2026.