The Multiquip 51656 Fitting 5/16" is a genuine OEM component designed for C30HDZ, RW1403HF, RW1404, and RW1404MR series equipment. As a direct OEM replacement, this fitting is produced to the same specification as the original hardware — ensuring a proper, leak-free connection within the fluid or fuel circuit it serves. Verified fitment covers the RW1404MR from S/N 326075 and up, so confirm your machine's serial number before ordering.
Key Features
- Genuine OEM Construction — Produced to Multiquip's original specification, ensuring the correct thread pitch, seat angle, and material grade for a secure, pressure-holding connection.
- Direct-Mount Replacement — Installs directly into the existing port without rework or adaptation, maintaining the integrity of the original fluid or fuel line routing.
- Broad Model Coverage — Confirmed fitment for C30HDZ concrete pump, RW1403HF, RW1404, and RW1404MR RAMMAX rollers, including RW1404MR units from S/N 326075 and up.
- Leak-Free System Integrity — A correctly seated fitting keeps fluid circuits sealed under operating pressure; a worn or cross-threaded fitting risks line leaks, pressure loss, and component damage.
- Fluid System Safety — On fuel and hydraulic circuits, a properly rated fitting is critical to preventing uncontrolled fluid release that could create fire or hydraulic hazard conditions.
A 5/16" fitting serves as a threaded connection point within a machine's fluid circuit — whether fuel, hydraulic, or coolant — sealing the junction between a hose, line, or component port to prevent leakage and maintain system pressure. When a fitting becomes corroded, stripped, or damaged, the resulting leak can starve downstream components of the fluid they need or create a hazard on the worksite. Replacing a worn fitting promptly with a correctly sized OEM part restores the sealing integrity of the line and keeps the system operating as designed.
For fitment questions or help confirming compatibility with your specific machine serial number, contact the DHS Equipment team directly.
Part Details
| Part Number | 51656 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Fitting 5/16" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDZ |
| Rollers | RW1403HF |
| Rollers | RW1404 |
| Rollers | RW1404MR |
| Rollers | RW1404MR S/N 326075 and up |
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.
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