The Multiquip 1137 Throttle Quadrant is a genuine OEM part designed for a range of Multiquip and Whiteman ride-on power trowels, roller screeds, and trash pumps including the STX55Y6, STX55J6, HTX44Y5, HTX44Y4, HTX44K5, HTX44K4, WRS5200, WRSPUDF, WRS5200DFPU, and MQ62TK. As a direct-from-manufacturer component, it meets the same specifications as the original part it replaces, ensuring consistent throttle control behavior right out of the box. DHS Equipment supplies this part as a genuine Multiquip OEM replacement, so you can order with confidence knowing you are getting the correct component for your machine. Verify your model code before ordering to confirm fitment.
Key Features
- Genuine OEM Throttle Calibration — Manufactured to the same tolerances as the original, ensuring the throttle engages and holds position correctly across its full range of motion.
- Direct-Fit Installation — Mounts to the existing throttle linkage and control assembly without modification, restoring the original control feel and response.
- Broad Multiquip Model Coverage — Fits STX55, HTX44, and WRS5200 series equipment, as well as the MQ62TK, covering multiple Multiquip product families with a single part number.
- Consistent Engine Speed Control — A correctly functioning throttle quadrant holds your selected engine RPM under load, which is critical for maintaining blade speed on ride-on trowels and drum speed on roller screeds.
- Operational Safety on Engine-Governed Machines — A worn or slipping throttle quadrant can cause unintended engine speed changes during operation; replacing it restores predictable throttle behavior and operator control.
The throttle quadrant is the mechanical component that allows the operator to set and hold engine speed at a chosen position. It works by locking the throttle cable in place at a selected point along its travel, maintaining a steady engine RPM without the operator needing to hold continuous pressure on the control. On ride-on trowels, consistent engine speed directly affects blade pitch response and finishing performance, while on roller screeds it governs drum rotation and surface quality. When the quadrant wears, becomes damaged, or loses its ability to hold position, engine speed can drift or drop unexpectedly, leading to uneven work output and reduced operator control.
Part Details
| Part Number | 1137 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Throttle Quadrant |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | STX55Y6 |
| Whiteman Ride-On Power Trowels | STX55J6 |
| Trash Pumps | MQ62TK |
| Ride-On Roller Screeds | WRSPUDF |
| Ride-On Roller Screeds | WRS5200 |
| Ride-On Roller Screeds | WRS5200DFPU |
| Whiteman Ride-On Power Trowels | HTX44Y5 |
| Whiteman Ride-On Power Trowels | HTX44Y4 |
| Whiteman Ride-On Power Trowels | HTX44K5 |
| Whiteman Ride-On Power Trowels | HTX44K4 |
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.
