The Multiquip 03171800 is a genuine OEM Collar Nut 2G40 Hatz designed for RAMMAX walk-behind roller models including the RW1404, RW1404MR, and RW1504HF. As an authorized Multiquip OEM part, 03171800 is manufactured to the exact specifications required for correct installation and dependable operation. This part is sourced directly through Multiquip's OEM supply chain, ensuring you receive an authentic component built to match the original hardware in your roller. Verify your model code and serial number range against the fitment data before ordering to confirm compatibility.
Key Features
- OEM-Spec Thread Engagement — Manufactured to the exact thread pitch and torque specification of the original Hatz 2G40 engine collar nut, ensuring proper clamping force and a secure seat.
- Direct Drop-In Replacement — Matches the original fastener geometry for the RW1404, RW1404MR, and RW1504HF, installing without any modification to existing hardware.
- Confirmed RAMMAX Roller Fitment — Validated for RW1404, RW1404MR (S/N 326075 and up), and RW1504HF (up to S/N 1534188) walk-behind roller platforms.
- Engine Integrity Under Load — A correctly torqued collar nut maintains critical engine component retention during the sustained vibration cycles common in compaction work; a worn or missing nut risks component loosening and engine damage.
- Genuine OEM Traceability — Supplied as an authentic Multiquip OEM part, giving you full part number traceability and confidence that the component meets the original design standard.
A collar nut is a threaded fastener with an integrated collar or flange that bears against a mating surface to secure engine or drivetrain components in precise alignment. On the Hatz 2G40 engine fitted to these RAMMAX roller models, the collar nut holds critical rotating or stationary components firmly in position, preventing movement that could lead to misalignment, vibration-induced wear, or mechanical failure. When a collar nut stretches, strips, or loses its seating surface, it should be replaced promptly with the correct OEM specification fastener to restore proper component retention and prevent cascading damage to surrounding parts.
For fitment questions or ordering assistance, contact the DHS Equipment team directly.
Part Details
| Part Number | 03171800 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Collar Nut 2G40 Hatz |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | RW1404 |
| Rollers | RW1404MR |
| Rollers | RW1404MR S/N 326075 and up |
| Rollers | RW1504HF up to S/N 1534188 |
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.
