Description
Overview:
This genuine Husqvarna base gasket is a thin, heat‐resistant sealing layer that fits between the cylinder and crankcase on two‐stroke chainsaws. Made from durable, high‐temperature gasket material, it maintains airtight sealing under vibration and thermal cycling to protect compression and prevent oil and air leaks. It is designed specifically for Husqvarna professional and domestic saws, including the 242 and 246, ensuring a precise fit and reliable engine performance. Using the correct base gasket helps the engine start consistently, idle cleanly, and deliver stable power under load. A direct replacement part, it suits routine servicing or full top‐end rebuilds. OEM No. 503 72 99 01, MPN 503729901. Genuine Husqvarna part for assured compatibility and long service life.
Key Features:
- Genuine Husqvarna part for accurate fit and dependable sealing
- High‐temperature, fuel‐resistant material for longevity in tough conditions
- Maintains crankcase compression and prevents air and oil leaks
- Supports stable idle, smooth acceleration, and consistent cutting performance
- Reduces risk of lean running caused by air leaks at the cylinder base
- Direct replacement for OEM No. 503 72 99 01 (MPN 503729901)
- Straightforward to install with standard workshop tools once mating faces are clean and flat
- Suitable for routine maintenance or engine rebuilds to restore factory sealing
Typical Applications:
Used during cylinder refits, top‐end rebuilds, or leak repairs on Husqvarna chainsaws operating in forestry, arborist work, landscaping, and construction site use. Ideal when diagnosing hard starting, rough idle, or loss of power linked to base gasket leaks, and for preventative maintenance to keep engines reliable in daily professional or DIY workloads.
Also known as:
Cylinder base gasket, crankcase gasket, cylinder gasket, engine base seal, chainsaw engine gasket, crankcase-to-cylinder seal, base plate gasket, top-end gasket, replacement gasket for cylinder base joints.
Fits Models:
242, 246, 42
Product Specifications
| L&S Part No. | 503 72 99 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 503729901 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Key Features | - Fits Husqvarna chainsaw models 242 and 246 - High-temperature, fuel-resistant material for durability - Maintains crankcase compression, preventing air and oil leaks - Direct replacement for OEM No. 503 72 99 01 - Supports stable idle and consistent cutting performance |
| Fits Models | 242 | 246 | 42 |
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