Exhaust Manifold Gasket Set - Honda Acty Truck HA3, HA4 Models - 1990-1999

This exhaust manifold gasket set fits the Honda Acty Truck HA3, HA4 (1990-1999). It seals the exhaust manifold to the head so hot gas does not leak.

Vehicle Fitment & Compatibility

Confirm your chassis code against the table below before ordering.

Reasons to choose this exhaust manifold gasket set

• A ticking exhaust leak at the manifold
• Blown or crushed old gaskets
• You are removing the manifold or exhaust
• Soot tracks at the manifold joint

Features & Function

• Seals the exhaust manifold to the head
• Correct fit for the E07A
• Stops an exhaust leak at the joint

Installation Specifications

• Difficulty: Moderate.
• Estimated time: about 1.5 to 2.5 hours.
• Required tools: A socket set, penetrating oil, and a gasket scraper.

Frequently Asked Questions

How do I know the exhaust manifold gasket is leaking?

Listen for a ticking that grows with revs at the manifold joint and look for soot tracks at the gasket. A cold-start tick that quiets as it warms is the classic manifold leak.

Any tips for the exhaust studs?

Soak the studs in penetrating oil first and be ready for a broken one - seized exhaust studs are common. Clean the faces before fitting the gasket.

Should I replace the whole set at once?

Yes - do every manifold joint while it is apart; one old gasket left in place will leak and tick until you go back in.

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