The Multiquip 3551 is a genuine OEM Engine Honda 20HP GX630RTXF2 designed for SP2S20H flat saw, MT60H2 rammer, and MT85 rammer equipment. As a direct Multiquip OEM part, the 3551 is sourced to match the exact engine specification installed at the factory, ensuring correct mounting, output, and control compatibility across all covered models. This engine is a complete power unit replacement intended for machines where the original GX630RTXF2 powerplant requires full replacement due to failure or end-of-service-life wear. Confirm your model code against the SP2S20H, MT60H2, or MT85 before ordering to ensure proper fitment.
Key Features
- OEM-Matched Power Output — Genuine Honda GX630RTXF2 specification at 20HP ensures the engine delivers the torque and RPM range the host machine was engineered around, with no output compromise.
- Direct Bolt-In Replacement — Engineered to match the original mounting footprint and shaft configuration, allowing installation without custom fabrication or adapter hardware.
- Broad Model Compatibility — Fits SP2S20H flat saw, MT60H2 rammer, and MT85 rammer — verify your model code before purchasing to confirm correct application.
- Sustained Cutting and Compaction Performance — A correctly functioning engine maintains consistent blade speed on the SP2S20H and reliable impact force on the MT60H2 and MT85; a worn or failed engine results in loss of productive output and potential damage to drivetrain components.
- Fuel System Integrity — The GX630RTXF2 configuration includes a matched fuel and ignition system; using the correct engine variant maintains proper fuel delivery and emissions compliance for the installed application.
The engine is the primary power source for the machine, converting fuel combustion into rotational force that drives all working functions — whether that is blade rotation on a flat saw or the reciprocating impact mechanism on a rammer. The Honda GX630RTXF2 is a V-twin four-stroke gasoline engine rated at 20HP, designed for commercial-duty equipment that demands consistent power under sustained load. When an engine reaches the end of its service life or suffers internal failure, replacing it with the correct OEM unit restores full machine function and protects the integrity of connected components such as the clutch, drive system, and controls.
Part Details
| Part Number | 3551 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Engine Honda 20HP GX630RTXF2 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Saws | SP2S20H |
| Rammers | MT60H2 |
| Rammers | MT85 |
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.
