Vacuum Check Valve for Honda Acty Truck Models HA3, HA4 (1990-1999) featuring a compact, cylindrical design with dual hose connections.
Vacuum Check Valve for Honda Acty Truck Models HA3, HA4 (1990-1999) featuring detailed hose connections and component layout.
Vacuum Check Valve - Honda Acty Truck Models HA3, HA4 - 1990-1999
Vacuum Check Valve for Honda Acty Truck Models HA3, HA4 (1990-1999) featuring a compact cylindrical design with dual hose connectors.
Vacuum Check Valve for Honda Acty Truck Models HA3, HA4 (1990-1999) featuring a compact, cylindrical design with dual hose connectors.
Vacuum Check Valve for Honda Acty Truck Models HA3, HA4 (1990-1999) featuring a compact design with colored markings.
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Vacuum Check Valve for Honda Acty Truck Models HA3, HA4 (1990-1999) featuring a compact, cylindrical design with dual hose connections.Vacuum Check Valve for Honda Acty Truck Models HA3, HA4 (1990-1999) featuring detailed hose connections and component layout.Vacuum Check Valve - Honda Acty Truck Models HA3, HA4 - 1990-1999Vacuum Check Valve for Honda Acty Truck Models HA3, HA4 (1990-1999) featuring a compact cylindrical design with dual hose connectors.Vacuum Check Valve for Honda Acty Truck Models HA3, HA4 (1990-1999) featuring a compact, cylindrical design with dual hose connectors.Vacuum Check Valve for Honda Acty Truck Models HA3, HA4 (1990-1999) featuring a compact design with colored markings.

Vacuum Check Valve - Honda Acty Truck Models HA3, HA4 - 1990-1999

Oiwa Garage
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Price:
$43.50
Stock:
In stock

Need help? Call or Text: 562-661-8862

Description

This vacuum check valve fits the Honda Acty Truck HA3, HA4 (1990-1999). Located along the vacuum hose system, it ensures one-way airflow and prevents backflow that can cause erratic engine behavior.

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.

Honda Acty Truck HA3, HA4 (1990-1999) - fitment
Make Honda
Model Acty Truck
Chassis Codes HA3, HA4
Years 1990-1999
Part Type vacuum check valve

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 vacuum check valve

  • A vacuum circuit that will not hold
  • Rough idle or emissions trouble
  • A cracked or stuck check valve

Features & Function

  • One-way vacuum control
  • Correct valve for the Acty system
  • Restores proper vacuum routing

Installation Specifications

  • Difficulty: Easy.
  • Estimated time: about 20 to 30 minutes.
  • Required tools: Hose pliers and a rag.

Oiwa Garage Tech Note

"Blow through it both ways off the truck - it should pass one direction and seal the other. That quick test confirms the valve before you fit it."

Frequently Asked Questions

Which way does it install?

It is directional; match the flow arrow to the original routing. Check the listing photos to confirm the fitting sizes.

How do I test the vacuum check valve?

Blow through it both ways off the truck - it should pass one direction and seal the other. If it flows both ways or is blocked, replace it.

Fitment verified by the Kei truck specialists at Oiwa Garage · Listing updated June 2026.

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