Description
Overview:
This genuine Husqvarna Cylinder and Piston Assembly is a complete top-end kit for Husqvarna petrol disc cutters, including the K760 and K770. It restores compression and sealing in a worn engine, helping the cutter start reliably and deliver consistent power. The kit includes a 51 mm bore cylinder, matching piston, piston rings, gudgeon pin, circlips, needle bearing, gaskets, screws, bracket, and the updated inlet plate. Built from durable, high-quality materials for heavy site use, it is engineered to meet OEM tolerances for a precise fit and long service life. Genuine Husqvarna part, MPN 581 47 61‐03 (also known as 581476103), suitable for routine maintenance or full top-end repair where the bore or piston has scored or lost compression.
Key Features:
- Genuine Husqvarna part for assured fit, performance, and reliability
- Nominal 51 mm bore with matched piston and rings for correct compression
- Imperial reference: 2 in (50.8 mm) bore equivalent provided for clarity
- Includes piston, rings, clips, pin, needle bearing, gaskets, screws, bracket, and new-type inlet plate
- OEM-grade materials and finish designed for high heat and load in cutting applications
- Helps cure low compression, hard starting, loss of power, and excessive blow-by
- Manufactured to tight tolerances to protect crankshaft, bearings, and port timing
- Compatible with multiple K760/K770 variants for fleet standardisation
- Suitable for workshop or on-site repair with standard tools
- Supports longer engine life when combined with correct oil mix and air filtration
Typical Applications:
Replacing a scored cylinder or worn piston in Husqvarna K760/K770 cutters used for concrete, masonry, and asphalt cutting. Ideal for trade users, tool hire fleets, grounds teams, and DIY owners needing a dependable top-end rebuild to restore power and starting performance.
Also known as:
Cylinder kit, piston kit, top-end kit, top end rebuild kit, barrel and piston kit, cylinder and piston set, bore kit, jug and piston (US term).
Fits Models:
K760, K760 II, K760 Rescue, K760 Cut-n-Break, K760 Cut-n-Break II, K770, K770 Dry Cut, K770 Oil Guard, K770 Rescue, K770 VAC
Alternate Part Numbers:
520 75 73 04, 520 75 73 02, 506 36 88-01, 506 38 61 71, 520 75 73 03, 574 23 18-02, 581 47 61-03, 737 43 12-00, 506 37 24-02, 503 28 90-47, 581 47 61 02, 503 25 56-01, 581 47 61 01, 506 37 25 01, 581 28 53-01, 503 21 53-16, 503215316, 737431200, 581285301, 581476102, 520757302, 503289047, 581476103, 506372501, 520757303
Product Specifications
| L&S Part No. | 581 47 61 03 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 581476103 |
| Unit of Sale | 1 |
| Applications | K760, K760 Cut-n-Break, K760 Cut-n-Break II, K760 II, K760 Rescue, K760Cut-n-Break, K760Cut-n-BreakII, K760II, K760Rescue, K770, K770 Dry Cut, K770 Oil Guard, K770 OilGuard, K770 Rescue, K770 VAC, K770DryCut, K770OilGuard, K770Rescue, K770VAC |
| Machine Type | Disc Cutters |
| Fits Brands | Husqvarna |
| Fits Models | K770 | K760 | K760 Cut-n-Break | K760 RESCUE | K760 Cut-n-Break II | K760 II | K770 Dry Cut | K770 OilGuard | K770 Rescue | K770 SmartGuard | K770 VAC |
