Description
Overview:
This Genuine Husqvarna piston stopper is a metal service tool designed for safe engine maintenance on Husqvarna chainsaws, including models 36 and 41. It screws into the spark plug opening to hold the piston firmly in place, preventing engine rotation while you remove or refit components such as the clutch, flywheel nut, or drive sprocket. The robust metal construction offers durability for repeated workshop use, while the precise fit helps protect engine parts during servicing. Supplied to Husqvarna's OEM standard under part number 502 50 33-01 (MPN 502503301), it provides a reliable, straightforward way to stabilise the piston, reduce the risk of damage, and make common repair tasks quicker and more controlled on compatible Husqvarna two-stroke engines.
Key Features:
- Genuine Husqvarna OEM part for assured fit and compatibility with specified models
- Durable metal construction designed for repeated use in workshop conditions
- Threads into the spark plug hole for quick installation and removal
- Locks the piston to aid clutch, flywheel, and sprocket service tasks
- Helps prevent piston and crankshaft damage when used correctly
- Compact, straightforward tool for efficient maintenance and repair
- Suitable for both professional mechanics and DIY users working on compatible chainsaws
Typical Applications:
Used during routine maintenance and repairs to immobilise the piston so you can safely loosen or tighten the clutch, flywheel nut, or drive sprocket. Ideal for top-end inspections, recoil starter diagnosis, and other tasks where preventing engine rotation improves control and reduces the risk of component damage on Husqvarna 36 and 41 chainsaws.
Also known as:
Piston lock, piston stop tool, cylinder stopper, engine stopper, piston holding tool. These terms refer to the same device that secures the piston via the spark plug opening to stabilise the engine during service.
Fits Models:
36, 41
Alternate Part Numbers:
502 50 33-01, 502503301
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