The Multiquip HS50102012E Cylinder Assembly With Piston HS-81/81A is a genuine OEM component designed for the HS-81 handheld saw. Sourced directly from Multiquip, this assembly ensures the correct bore dimensions, piston fitment, and port alignment for the HS-81 engine. As a genuine OEM part, it meets the same manufacturing standards as the original component installed at the factory. Confirm your model code is HS-81 before ordering to ensure a direct, compatible fit.
Key Features
- Matched Bore and Piston Tolerances — Genuine OEM construction ensures the cylinder bore and piston are precision-matched for correct compression and engine sealing.
- Direct OEM Replacement — Replaces the original cylinder and piston assembly on HS-81 and HS-81A handheld saws, installing into the existing engine cradle without modification.
- HS-81 and HS-81A Fitment — Confirmed compatibility with Multiquip HS-81 series handheld saws; always verify your model designation before ordering.
- Restores Full Engine Compression — A worn cylinder or damaged piston causes power loss, hard starting, and excessive fuel consumption; this assembly brings compression back to operating spec.
- Fuel System Safety — A correctly sealed cylinder assembly prevents uncontrolled combustion blowby, maintaining safe fuel-air containment within the engine during cutting operations.
The cylinder and piston assembly forms the core of the two-stroke engine in the HS-81 handheld saw. The cylinder provides the combustion chamber where the fuel-air mixture ignites, and the piston converts that combustion energy into the crankshaft rotation that drives the blade. When the cylinder bore becomes scored or the piston rings wear, compression drops sharply — resulting in difficult starting, reduced cutting power, and increased exhaust emissions. Replacing the assembly as a matched unit ensures proper ring seal and restores the engine to full working output.
Part Details
| Part Number | HS50102012E |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Cylinder Assembly With Piston HS-81/81A |
Compatibility & Fitment
| Name | Model |
|---|---|
| HS-81 | HS-81 |
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.
