Description
Overview:
Long Block / Short Motor for Husqvarna K770 disc cutters, OEM No. 593 28 25-10, is a Genuine Husqvarna engine lower-end assembly designed to restore performance and reliability in professional cut-off saws. Built around a robust, pressure-cast alloy crankcase with a hardened steel crankshaft, it forms the core of the 73.5 cc 2‑stroke petrol engine used in the K 770 and K 770 Oil Guard. This assembly is intended for machines used with 12 in (300 mm) and 14 in (350 mm) blades, delivering precise crank alignment, sealing and durability under heavy site use. Typically supplied as a factory-assembled crankcase with the internal rotating assembly, it is ready to accept your existing cylinder, piston and external components, providing a straightforward route to a dependable engine rebuild.
Key Features:
- Genuine Husqvarna part for assured fit and performance
- OEM No. 593 28 25-10; replaces earlier numbers for simplified ordering
- Engineered crankcase in pressure-cast alloy with hardened steel crankshaft
- Factory-assembled lower end for fast rebuilds and reduced downtime
- Restores correct crankshaft alignment and crankcase sealing for smoother running
- Suited to the 73.5 cc 2‑stroke engine used across the K 770 family
- Compatible with 300 mm (12 in) and 350 mm (14 in) K770 variants
- Typically includes crankcase with internal rotating assembly; transfer cylinder, piston, ignition, carburettor, clutch and covers from your original engine
- Direct replacement fitting points match original hardware and mounts
- Refer to the Husqvarna workshop manual for torque settings and assembly procedure
Typical Applications:
Used to rebuild seized, worn or noisy lower-end assemblies on Husqvarna K 770 series saws operating in construction, utilities, landscaping and rescue environments. Ideal when addressing crank bearing failure, crankshaft damage or crankcase wear to restore cutting performance on concrete, asphalt, masonry and metal.
Also known as:
Short motor, short block, long block, crankcase assembly, bottom end, engine lower end, crankcase kit for cut-off saw.
Fits Models:
K 770, K 770 Oil Guard, K 770 Rescue, K 770 SmartGuard, K 770 VAC, K770
Alternate Part Numbers:
593 28 25-02, 593 28 25-03, 593 28 25-06, 593 28 25-09, 593 28 25-10, 593 28 25 02, 593 28 25 03, 593 28 25 06, 593 28 25 09, 593 28 25 10, 593282502, 593282503, 593282506, 593282509, 593282510
Product Specifications
| L&S Part No. | 593 28 25 10 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 593282510 |
| Unit of Sale | 1 |
| Machine Type | Disc Cutters |
| Fits Brands | Husqvarna |
| Key Features | - Suits 73.5 cc 2-stroke engines in K770 cutters - Pressure-cast alloy crankcase with hardened steel crankshaft - Compatible with 12 in and 14 in blades - Pre-assembled lower end for quick rebuilds - OEM No. 593 28 25-10 ensures correct fit |
| Fits Models | K770 |






