The Multiquip HS52010019 Throttle Valve is a genuine OEM Throttle Valve designed for the HS81, HS81A, and SHS81A handheld cut-off saws. Sourced directly from Multiquip, this part meets the exact design specifications of the original component installed at the factory. It is a verified direct replacement for the HS81 and HS81A MQ High Speed Cut-Off Saws as well as the SHS81A STOW High Speed Cut-Off Saw, ensuring correct fit without modification. DHS Equipment stocks this part to help you get your saw back in service quickly and correctly.
Key Features
- Genuine OEM Throttle Control Accuracy — Manufactured to the original design spec, ensuring the valve opens and closes at the correct travel range for proper engine response on your cut-off saw.
- Drop-In Replacement — Engineered to install directly into the throttle assembly of the HS81, HS81A, and SHS81A using the original mounting points and linkage connections.
- Broad Sidewinder Series Coverage — Fits the HS81, HS81A, and SHS81A MQ and STOW High Speed Cut-Off Saw models, covering both current and earlier Sidewinder configurations.
- Consistent Engine Speed Control — A correctly functioning throttle valve gives the operator precise RPM control under load, which is critical when cutting masonry, asphalt, or pipe with an abrasive wheel.
- Operator Safety Relevance — Throttle valves that stick, bind, or fail to return to idle create a blade-overspeed hazard. Replacing a worn or damaged valve restores safe, predictable throttle behavior.
The throttle valve controls the flow of the air-fuel mixture into the engine by opening and closing in response to trigger input from the operator. On a handheld cut-off saw like the HS81 or SHS81A, precise throttle response directly affects blade speed and cutting consistency — too little response and the saw bogs under load; too much play or sticking and the operator loses control of engine RPM. When the throttle valve wears, sticks, or cracks, the saw may surge, fail to idle down, or become unresponsive, all of which compromise both cut quality and safe operation. Replacing the valve with a genuine OEM part restores the intended throttle feel and engine behavior.
Part Details
| Part Number | HS52010019 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Throttle Valve |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ High Speed Cut-Off Saws (Sidewinder) | HS81 |
| MQ High Speed Cut-Off Saws (Sidewinder) | HS81A |
| STOW High Speed Cut-Off Saws (Sidewinder) | SHS81A |
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.
