Multiquip 22618 Honda GX630 20HP Engine

The Multiquip 22618 is a genuine OEM Honda GX630 20HP Engine designed for the JTNS20, JTNSW20, JTNSW20HTCSL, and JTNSW24HTCSL international ride-on power trowels. As a direct OEM replacement sourced through Multiquip, part 22618 delivers the exact engine configuration your trowel was built around — no guesswork on compatibility. This engine is engineered to Honda's own specifications, ensuring the power output and operating characteristics match what the trowel's drive system expects. DHS Equipment supplies this part as a verified Multiquip OEM component, so you can be confident you're receiving the correct assembly for your machine.

Key Features

• Honda OEM Engine Assembly — A complete Honda GX630 20HP engine unit built to the same specification as the original, preserving the power delivery and throttle response your trowel's hydraulic or mechanical drive system depends on.
• Verified Fitment for JTNS20 Series — Confirmed for JTNS20, JTNSW20, JTNSW20HTCSL, and JTNSW24HTCSL international ride-on power trowels, matching the original engine mount configuration and output shaft interface.
• Direct OEM Replacement — Supplied as a genuine Multiquip part under number 22618, this engine replaces the original unit without the need for bracket modifications or adapter hardware.
• Sustains Full Finishing Performance — A properly functioning engine at rated HP ensures consistent blade speed and rotor torque across the finishing pass; a worn or underpowered engine causes uneven blade pressure and incomplete surface consolidation.
• Fuel System Integrity — The GX630 is engineered with Honda's ignition and fuel delivery system intact, maintaining correct air-fuel ratios and cold-start reliability critical for day-to-day jobsite operation.

The engine is the primary power source for a ride-on power trowel, converting fuel into rotational force that drives the trowel's rotor blades across freshly placed concrete. On machines like the JTNS20 and JTNSW20 series, the engine must deliver consistent horsepower to maintain blade pitch control and rotor speed throughout the finishing cycle. When an engine loses compression, develops fuel delivery problems, or fails entirely, blade speed drops and the operator loses the ability to achieve a uniform, defect-free surface finish — making timely engine replacement essential to keeping concrete work on schedule.

For questions about part 22618 or to confirm fitment for your specific trowel configuration, contact the DHS Equipment parts team directly.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.