The Multiquip 16778 Main Wire Assembly Power Unit is a genuine OEM component designed for the WRS5200 ride-on roller screed. Sourced directly from Multiquip, this assembly carries the exact specifications required to maintain electrical integrity across the power unit circuit. It is a direct replacement for the original harness on WRS5200 machines, ensuring all connectors, wire gauges, and routing points match the factory design without adaptation. Contractors who depend on the WRS5200 for high-productivity concrete finishing operations can trust this assembly to restore full electrical function quickly and correctly.
Key Features
- Genuine OEM Wiring Integrity — Manufactured to Multiquip's exact conductor gauge, insulation rating, and connector specification for the power unit circuit, eliminating the guesswork of sourcing a generic harness.
- Direct-Fit Replacement — All connectors, terminals, and harness routing points align with the WRS5200 power unit layout, allowing a clean swap without splicing or rewiring.
- Built for the WRS5200 Ride-On Roller Screed — Engineered specifically for the WRS5200 platform, so fitment and electrical compatibility are confirmed before the part ships.
- Sustained Power Delivery — A fully functional main wire assembly keeps consistent voltage flowing to the power unit, supporting smooth screed operation and preventing intermittent shutdowns or erratic engine behavior caused by a degraded harness.
- Electrical Safety Compliance — Correct wire gauge and insulation protect against heat buildup and short-circuit risk in the power unit circuit — critical on equipment operating in demanding concrete finishing environments.
The main wire assembly serves as the primary electrical harness connecting the power unit to the machine's control and ignition circuits on the WRS5200 roller screed. It carries operating voltage to key components, ensuring the engine starts reliably and the screed's drive and vibration systems receive consistent power. When this harness degrades — through abrasion, heat cycling, or connector corrosion — operators may experience hard starts, intermittent power loss, or complete electrical failure, making timely replacement essential to keeping the screed productive on the pour.
Part Details
| Part Number | 16778 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Main Wire Assembly Power Unit |
Compatibility & Fitment
| Name | Model |
|---|---|
| Ride-On Roller Screeds | WRS5200 |
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.
