Description
This timing belt tensioner pulley fits the Honda Acty Truck HA3, HA4 (1990-1999). It holds the correct tension on the timing belt.
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 timing belt tensioner pulley
- A rumble or whir from the timing area
- A pulley that feels rough or notchy
- You are doing the timing belt
- A weak or seized tensioner
Features & Function
- Maintains correct belt tension
- Smooth bearing for quiet running
- Correct fit for the Acty timing system
Installation Specifications
- Difficulty: Advanced.
- Estimated time: about 2 to 4 hours with the belt.
- Required tools: A socket set and belt-timing tools.
Oiwa Garage Tech Note
"Set the tensioner to spec as you fit the belt - too loose lets the belt jump a tooth, too tight wears the bearings. Do it with a fresh belt."
Frequently Asked Questions
Do I replace this with the belt?
Yes. Fit the tensioner with the timing belt and set it to the correct tension so the belt tracks and lasts.
How do I test the timing belt tensioner pulley?
Spin it by hand with the belt off and feel for roughness or notchiness. A rumble or whir from the timing cover while running, or a pulley that does not spin smooth, means it is due.
Should I replace the water pump at the same time?
The timing belt job already exposes the water pump on this engine, so doing it with the tensioner and belt saves a second teardown later.
Fitment verified by the Kei truck specialists at Oiwa Garage · Listing updated June 2026.