The Multiquip 502321570 Rubber Coupling is a genuine OEM component designed for MDR-9DYE, MDR-9D, and MDR-9GH power trowels. This direct-fit coupling restores the drivetrain connection between the engine and trowel blade assembly, ensuring smooth, balanced power transfer on every pass. Sourced directly through Multiquip's OEM supply chain, part number 502321570 is built to the same tolerances as the original production part.
Key Features
- OEM-Grade Rubber Compound — Formulated to absorb drivetrain shock and torsional vibration at the coupling interface, maintaining consistent torque transfer without premature cracking or deformation.
- Direct-Fit Replacement — Engineered to the original coupling dimensions, allowing the 502321570 to seat and secure the same way as the factory part with no trimming or adaptation.
- Confirmed Fitment — Verified for MDR-9DYE, MDR-9D, and MDR-9GH series power trowels, so you can order with confidence for these machines.
- Protects Engine and Gearbox — A correctly functioning rubber coupling cushions shock loads between the power source and blade drive, reducing stress on both the engine output shaft and the gearbox input.
- Fuel System Safety — Genuine OEM designation means the part meets Multiquip's original material and dimensional specifications, keeping your drivetrain operating within designed tolerances.
A rubber coupling connects the engine output to the trowel's blade drive system, acting as a flexible buffer that absorbs shock, dampens vibration, and compensates for minor misalignment between rotating shafts. This flexibility is critical on power trowels, where engine pulses and blade load changes constantly stress the drivetrain. When the rubber element cracks, hardens, or deteriorates, vibration increases noticeably, power transfer becomes erratic, and the risk of damage to the engine shaft or gearbox rises — making timely replacement essential to keeping the machine finishing concrete smoothly and accurately.
Part Details
| Part Number | 502321570 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Rubber Coupling |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Trowels | MDR-9DYE |
| Power Trowels | MDR-9D |
| Power Trowels | MDR-9GH |
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.
