The Multiquip 31110ZDJ003 Flywheel Complete is a genuine OEM component designed for MTX70HDR and MTX80HDR rammers. As a direct Multiquip OEM part, the 31110ZDJ003 is manufactured to the same specification as the original, ensuring a correct installation with no guesswork on fit or compatibility. This flywheel is confirmed for the MTX70HDR and MTX80HDR models, both of which run the GX120 Honda engine with a diaphragm carburetor. If your rammer is showing signs of engine hesitation, hard starting, or erratic operation, inspecting and replacing the flywheel assembly is a logical first step.
Key Features
- Genuine OEM Flywheel Assembly — Manufactured by Multiquip to original specification for the GXR120RTKRB6 engine, ensuring correct magnetic pole alignment and rotor balance.
- Direct-Fit Replacement — Engineered to bolt directly onto the GX120 Honda engine used in MTX70HDR and MTX80HDR rammers, matching original mounting dimensions and keyway alignment.
- Confirmed Fitment — Verified for MTX70HDR and MTX80HDR rammers; verify your model and engine code before ordering to ensure an exact match.
- Consistent Ignition Timing — A correctly balanced flywheel maintains steady engine RPM and stable ignition timing, allowing the rammer to deliver its full compaction force stroke after stroke.
- Ignition System Integrity — The flywheel's magnets generate the electrical charge that drives the ignition coil; a worn or cracked flywheel can cause intermittent spark loss, hard starting, or complete no-start conditions, making prompt replacement critical to safe and consistent machine operation.
The flywheel on a rammer engine serves two critical roles: it stores rotational energy to smooth out the power pulses from each combustion cycle, and it carries the permanent magnets that generate the electrical charge for the ignition system. As the flywheel spins past the ignition coil, those magnets induce the voltage needed to fire the spark plug at precisely the right moment. When a flywheel becomes cracked, loses a magnet, or develops a damaged keyway, ignition timing can shift or fail entirely, resulting in hard starting, misfires, or a rammer that simply will not run. Replacing it with a genuine OEM assembly restores correct timing and consistent engine output.
Part Details
| Part Number | 31110ZDJ003 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Flywheel Complete |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rammers | MTX70HDR |
| Rammers | MTX80HDR |
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.
