The Multiquip GX630RQZB2 Engine 20HP With Electric Start is a genuine OEM engine assembly designed for the AR13HA and AR13HAR asphalt ride-on rollers. As a direct OEM replacement, this engine is sourced and validated by Multiquip to meet the exact specifications of the original unit installed at the factory. The GX630RQZB2 is the correct engine for AR13HA/HAR series machines, so you can install with confidence knowing fitment has been verified against those models.
Key Features
- Genuine OEM Engine Assembly — Sourced directly through Multiquip, this unit meets the same output, torque, and displacement specs as the original engine — no guesswork on compatibility.
- Electric Start Included — Integrated electric start system is pre-configured for direct installation on AR13HA and AR13HAR roller platforms, eliminating the need for additional starter components.
- Confirmed Fitment for AR13HA/HAR — Validated for Multiquip asphalt ride-on roller models AR13HA and AR13HAR, ensuring the engine mounts, output shaft, and ancillary connections align correctly.
- Full Power Restoration — A worn or failing engine on a ride-on roller reduces drum compaction force and ground drive performance; replacing with the correct OEM unit restores full rated compaction output.
- Fuel System Integrity — As a complete engine assembly, the fuel and ignition systems are matched to the roller's operating demands, supporting consistent starts and smooth throttle response under load.
The engine is the core power source for the AR13HA and AR13HAR ride-on asphalt rollers, driving both the vibratory drum system and the ground propulsion. When engine performance degrades — through wear, failure, or damage — compaction quality drops and the machine loses the ability to maintain consistent drum speed and drive force across the asphalt surface. Replacing the engine with a genuine OEM unit like the GX630RQZB2 ensures the roller returns to its rated operating performance, with proper power delivery to all driven systems.
Part Details
| Part Number | GX630RQZB2 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Engine 20HP With Electric Start |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | AR13HA/HAR |
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.
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