The Multiquip 2040401 Relay Fuel Pump Kohler CH745 is a genuine OEM component designed for the HTN28K mechanical ride-on power trowel. Sourced directly from Multiquip, this relay matches the original electrical specification of the Kohler CH745 engine used in the HTN28K, ensuring proper circuit control and fuel pump activation. If your HTN28K is showing signs of hard starting, intermittent fuel delivery, or a fuel pump that fails to prime, the relay is a common diagnostic point and a straightforward service replacement.
Key Features
- OEM-Matched Electrical Spec — Meets the exact coil resistance and contact rating of the original relay on the Kohler CH745 engine, so switching behavior stays within the manufacturer's designed parameters.
- Direct Swap for HTN28K — Installs into the same relay socket as the original with no wiring changes needed; connector and terminal layout are carried over from the factory configuration.
- HTN28K Trowel Compatibility — Confirmed fitment for the Multiquip HTN28K mechanical ride-on power trowel equipped with the Kohler CH745 engine.
- Restored Fuel Pump Circuit Integrity — A faulty relay can interrupt the fuel pump trigger signal entirely, stalling the engine or preventing startup; replacing it with a correctly rated OEM relay restores consistent pump activation every cycle.
- Genuine Multiquip OEM Part — Supplied under part number 2040401 through authorized Multiquip channels, so you receive the same component that left the factory with the machine.
The fuel pump relay acts as an electrically controlled switch that completes the circuit between the ignition system and the fuel pump on the Kohler CH745 engine. When the ignition is turned on, the relay coil energizes and closes the contact, allowing current to flow to the fuel pump so it can build pressure before and during engine operation. A worn or failed relay may stick open — cutting power to the pump and starving the engine of fuel — or stick closed, which can cause the pump to run continuously and put unnecessary wear on the fuel system.
For fitment questions or help confirming this part is correct for your machine, contact the DHS Equipment team directly.
Part Details
| Part Number | 2040401 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Relay Fuel Pump Kohler CH745 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mechanical Ride-On Power Trowels | HTN28K |
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.
