The Multiquip 4RD93141008 Fuel Relay is a genuine OEM component designed for C30HDNI series concrete pumps. As a direct OEM replacement, this relay is manufactured to the exact electrical specifications required by the fuel system on C30HDNI and C30HDNI Precision Mayco concrete pump models. Sourcing the correct OEM part ensures the fuel control circuit operates as intended, protecting the engine and pump system from erratic fuel delivery. Verify your model against the fitment data before ordering to confirm compatibility.
Key Features
- Exact Electrical Specification: — Matched to the correct coil resistance and contact rating for the C30HDNI fuel circuit, ensuring the relay switches cleanly under load without arcing or voltage drop.
- Genuine OEM Component: — Sourced directly from Multiquip, this relay carries the same part number and construction as the unit installed at the factory on C30HDNI Mayco concrete pumps.
- Direct Fitment for C30HDNI Models: — Confirmed compatibility with C30HDNI and C30HDNI Precision Mayco concrete pump configurations — drops into the existing relay socket with no wiring adaptation needed.
- Fuel System Integrity: — A functioning fuel relay is critical for consistent engine start and run cycles on the concrete pump; a failed relay can prevent fuel delivery entirely, taking the machine out of service.
- Electrical Safety Assurance: — OEM-rated contact capacity prevents overheating and relay failure in the high-cycle fuel control environment typical of continuous pump operation.
The fuel relay is an electromechanical switching component that controls the flow of current to the fuel system — typically the fuel pump or fuel solenoid — based on a signal from the ignition or control circuit. When the relay receives that signal, it closes an internal contact to allow current to reach the fuel delivery components, enabling the engine to start and run. When the relay fails, it can prevent the engine from receiving fuel altogether, causing hard starts, stalling, or a complete no-start condition, making it one of the first components to inspect during fuel system diagnostics on C30HDNI concrete pumps.
For fitment questions or to confirm this part is correct for your specific unit, contact the DHS Equipment team directly.
Part Details
| Part Number | 4RD93141008 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Fuel Relay |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mayco Pumps | C30HDNI |
| Mayco Pumps | C30HDNI Precision |
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.
