The Multiquip 1-903813 Sunk Key is a genuine OEM component designed for the RX1575 walk-behind roller. As a direct OEM replacement, this part is produced to the same specifications as the original, ensuring proper fit and function within the drivetrain assembly. Confirm your model number against the RX1575 before ordering to ensure accurate fitment.
Key Features
- Genuine OEM Construction — Manufactured to original equipment tolerances, ensuring the key seats precisely within the keyway slot for full torque transfer without slippage.
- Direct OEM Replacement — Installs in the same position as the original, requiring no modification to the shaft or mating component during reassembly.
- Compatible with RX1575 — Verified fitment for the Multiquip RX1575 walk-behind roller series.
- Drivetrain Integrity — A correctly fitted sunk key locks rotating components to the shaft, maintaining consistent power delivery to the drum or drive assembly during compaction passes.
- Corrosion-Resistant Profile — Machined from hardened stock suited for the mechanical stresses and moisture exposure common in roller applications.
A sunk key is a small but critical drivetrain component that fits into a machined slot — called a keyway — cut into both a shaft and a mating hub or gear. Its role is to prevent rotational slippage between the two components, ensuring that torque is transferred cleanly from the drive shaft to the attached assembly. When a sunk key wears, shears, or goes missing, the connected component will spin freely on the shaft, causing a loss of drive and potential damage to the keyway itself. Replacing a worn or failed sunk key promptly protects the surrounding shaft and hub from the progressive damage that results from metal-on-metal slipping.
For questions about fitment or part compatibility, contact the DHS Equipment team for assistance.
Part Details
| Part Number | 1-903813 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Sunk Key |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | RX1575 |
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.
