Description
This exhaust temperature sensor fits the Honda Acty Truck HA3, HA4 (1990-1999). It monitors exhaust temperature for the emissions or warning system.
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 exhaust temperature sensor
- A temperature warning or emissions fault
- A damaged or corroded sensor
- You are servicing the exhaust or emissions system
Features & Function
- Monitors exhaust temperature
- Correct sensor for the Acty system
- Restores accurate monitoring
Installation Specifications
- Difficulty: Moderate.
- Estimated time: about 30 to 45 minutes.
- Required tools: A wrench, penetrating oil, and a socket.
Oiwa Garage Tech Note
"The sensor threads into the hot side, so soak it and expect it to be tight. Route the lead away from the exhaust so the fresh sensor lead does not melt."
Frequently Asked Questions
How do I know the sensor failed?
A temperature warning or emissions fault with a corroded sensor points here. Confirm against your symptoms and wiring.
How do I know the exhaust temperature sensor is bad?
A temperature warning or emissions fault with a corroded or damaged sensor points here. You can check the sensor resistance against spec with a multimeter.
Any tips for fitting the sensor?
It threads into the hot side, so soak it and expect it tight, then route the lead away from the exhaust so the fresh sensor lead does not melt.
Fitment verified by the Kei truck specialists at Oiwa Garage · Listing updated June 2026.