Honda Acty Truck HA3 HA4 air thermal valve top view with dual outlets and brass body for precise temperature regulation and optimal engine performance
Bottom view of air thermal valve for Honda Acty showcasing brass construction and threaded connection for durable and reliable engine thermal management
Air thermal valve with grey plastic lever and red marking, designed for accurate temperature control in Honda Acty Truck HA3, HA4 models, ensuring efficient engine operation.
Honda Acty HA3 HA4 engine air thermal valve system diagram showcasing component layout for effective thermal management in models from 1990 to 1999.
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Honda Acty Truck HA3 HA4 air thermal valve top view with dual outlets and brass body for precise temperature regulation and optimal engine performanceBottom view of air thermal valve for Honda Acty showcasing brass construction and threaded connection for durable and reliable engine thermal managementAir thermal valve with grey plastic lever and red marking, designed for accurate temperature control in Honda Acty Truck HA3, HA4 models, ensuring efficient engine operation.Honda Acty HA3 HA4 engine air thermal valve system diagram showcasing component layout for effective thermal management in models from 1990 to 1999.

Air Thermal Valve - Honda Acty Truck HA3, HA4 Models - 1990-1999

Oiwa Garage
1 review
Price:
$109.78
Stock:
In stock

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

Description

This air thermal valve fits the Honda Acty Truck HA3, HA4 (1990-1999). It manages intake air routing by temperature to help cold-running and warm-up.

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 air thermal 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 air thermal valve

  • Poor cold-start or warm-up behavior
  • A rough idle until the engine warms
  • A cracked or stuck valve

Features & Function

  • Regulates intake air by temperature
  • Correct valve for the Acty intake
  • Smooths cold-running and warm-up

Installation Specifications

  • Difficulty: Moderate.
  • Estimated time: about 30 to 45 minutes.
  • Required tools: A screwdriver and hose pliers.

Oiwa Garage Tech Note

"Check the vacuum hoses to the valve while you are in there - brittle, cracked hoses cause the same warm-up symptoms and are cheap to renew."

Frequently Asked Questions

How do I know this valve failed?

Poor warm-up and a rough cold idle that clears when hot point here. Confirm your vacuum hoses are intact too.

How do I know the air thermal valve is bad?

Poor cold running and a rough idle that clears once the engine warms point here. Check the valve and its vacuum hoses - cracked hoses cause the same symptoms and are cheap to renew.

Should I renew the vacuum hoses with this valve?

Yes - brittle, cracked vacuum hoses cause the same warm-up symptoms and are cheap, so renew them while the valve is out.

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

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