Description
Overview:
This Genuine Husqvarna crankcase gasket is a 6‐hole sealing gasket for the crankcase halves on petrol power cutters. It is made from a high‐temperature, oil‐resistant fibre gasket material designed to maintain a reliable seal under engine heat and vibration. Its job is to prevent oil and crankcase pressure leaks, help maintain compression, and protect against dirt ingress, supporting smooth running and long service life. Purpose‐made for Husqvarna and Partner cutters, it matches the factory profile for accurate alignment of oilways and bolt holes. Supplied to OEM specification as MPN 506377003 (also known as 506 37 70‐03), it fits popular models such as the K750 and K760 used in construction, demolition, and rescue work where dependable sealing is critical.
Key Features:
- Genuine Husqvarna part for assured fit and material quality
- 6‐hole pattern matches the original crankcase layout for precise installation
- High‐temperature, oil‐resistant gasket sheet helps prevent oil and pressure leaks
- Correct thickness and profile maintain crankcase integrity and compression
- Smooth edges and accurate port cut‐outs reduce risk of pinching and rework
- Compatible across the K750/K760/K770 family to simplify parts selection
- Durable under engine vibration and repeated heat cycles
- Ideal for engine rebuilds, crankcase splits, bearing or seal replacement
- Helps reduce downtime by restoring a consistent, leak‐free seal
- Replaces OEM references 506377003 and 506 37 70‐03
Typical Applications:
Used during power cutter engine repairs and overhauls, including crankcase split and reseal, big‐end or main bearing service, crankshaft or seal replacement, and when addressing oil seepage. Suitable for workshop maintenance or on‐site repair to keep Husqvarna/Partner cutters performing reliably in construction, groundwork, utilities, and rescue environments.
Also known as:
Engine case gasket, crankcase housing gasket, case‐half gasket, power cutter crankcase gasket, lower crankcase gasket, engine crankcase joint gasket.
Fits Models:
K750, K760, K760 Cut-n-Break, K760 Cut-n-Break II, K760 II, K760 Rescue, K770, K770 Dry Cut, K770 OilGuard, K770 Rescue, K770 VAC
Alternate Part Numbers:
506377003, 506 37 70-03, 506 37 70 03
Product Specifications
| L&S Part No. | 506 37 70 03 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 506377003 |
| Unit of Sale | 1 |
| Applications | K750, 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 OilGuard, K770 Rescue, K770 VAC, K770DryCut, K770OilGuard, K770Rescue, K770VAC |
| Machine Type | Disc Cutters |
| Fits Brands | Husqvarna |
| Fits Models | K750 | K760 | K770 | K760 Cut-n-Break | K760 RESCUE | K760 Cut-n-Break II | K760 II | K770 Dry Cut | K770 OilGuard | K770 Rescue | K770 SmartGuard | K770 VAC |
