Multiquip 1388 Engine Honda GX340 11HP

The Multiquip 1388 Engine Honda GX340 11HP is a genuine OEM replacement power unit designed for HDA-Series walk-behind power trowels and MC12PH concrete mixers. As a direct OEM component, this Honda GX340 11HP engine is sourced and supplied to the same specification as the unit originally installed at the factory, ensuring a correct, hassle-free installation on compatible equipment. Confirm your model against the HDA-Series or MC12PH to verify fitment before ordering.

Key Features

• Honda GX340 OEM Power Source — Sourced as a genuine Multiquip OEM engine assembly, delivering the same output rating and displacement as the original unit your machine was built around.
• Direct-Mount Replacement — Engineered to match the mounting configuration and output shaft spec of HDA-Series trowels and the MC12PH mixer, allowing straightforward removal and reinstallation.
• Confirmed Fitment — Compatible with Multiquip HDA-Series walk-behind power trowels and the MC12PH concrete mixer; always cross-reference your part number 1388 to confirm application.
• Sustained Output at Full Load — The GX340 platform is rated at 11HP and built for continuous-duty operation, supporting the sustained rotational demands of trowel blade drives and mixer drum loads.
• Fuel System Integrity — A correctly functioning engine maintains stable throttle response and consistent RPM under load, preventing blade speed variation on trowels and inadequate drum rotation on mixers that a worn or seized engine causes.

The Honda GX340 is an air-cooled, four-stroke single-cylinder gasoline engine rated at approximately 11 horsepower. On a walk-behind power trowel it drives the gearbox and blade spider assembly, maintaining the rotational speed necessary for a consistent, flat finish across a concrete slab. On a concrete mixer such as the MC12PH, it provides the torque needed to continuously rotate the drum under load. When this engine loses power, misfires, or fails entirely, the connected equipment cannot perform its core function — making a full engine replacement the appropriate corrective action when internal wear or damage is beyond practical repair.

For fitment questions or to confirm this part is correct for your machine, contact the DHS Equipment team before placing your order.

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.