The Multiquip 50978 Adapter is a genuine OEM replacement built for a broad range of Multiquip and Mayco concrete pumps, Essick stationary mixers, and RAMMAX walk-behind rollers, including the LS300GK, LS300G, LS300P, LS400, LS40D, LS40TD, LS500, LS50TD, LS600, LS600P, LS60TD, PRO12, PRO12E51, PRO12E53, PRO20, RW1403HF, RW1404MR, and RW1504HF. Sourced directly from Multiquip, this part meets the same specifications as the component originally installed on the machine — no guesswork on fit or compatibility. DHS Equipment supplies this adapter as a stocked OEM replacement so you can get your equipment back in service quickly.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's original design tolerances, ensuring the adapter connects and seats correctly within the assembly without rework.
- Broad Cross-Family Fitment — Confirmed compatible with LS-series concrete pumps, PRO-series Essick stationary mixers, and RW-series RAMMAX rollers across multiple model codes.
- Direct Bolt-In Replacement — Thread pattern, bore, and interface dimensions match the original component, so installation follows the same procedure as the factory part.
- Maintains Mechanical Integrity — A worn or damaged adapter can cause misalignment, vibration, or fluid/power transfer loss; replacing with a correct OEM unit restores proper machine function.
- Verified Part Number — Part number 50978 is referenced across multiple Multiquip equipment families, reducing the risk of ordering an incorrect component.
An adapter is a precision interface component that bridges two dissimilar threaded, mechanical, or hydraulic connections within a machine's drivetrain, fluid circuit, or structural assembly. When an adapter wears, corrodes, or becomes damaged, it can introduce leaks, mechanical slop, or misalignment that affect the performance and safety of the entire system it connects. Installing the correct OEM adapter — with matching thread form, seat angle, and material grade — ensures the connection performs as the machine was originally engineered to operate.
Part Details
| Part Number | 50978 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Adapter |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | LS300GK |
| Essick Mixers | PRO12 |
| Essick Mixers | PRO12E51 |
| Essick Mixers | PRO12E53 |
| Essick Mixers | PRO20 |
| Mayco Pumps | LS300G |
| Mayco Pumps | LS300P |
| Mayco Pumps | LS400 |
| Mayco Pumps | LS40D |
| Mayco Pumps | LS40TD |
| Mayco Pumps | LS500 |
| Mayco Pumps | LS50TD |
| Mayco Pumps | LS600 |
| Mayco Pumps | LS600P |
| Mayco Pumps | LS60TD |
| Rollers | P33/24 HHMR-BD w/Blade |
| Rollers | RW1403HF |
| 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.
