01SAW ACCESSORIES
Precision restoration for the Husqvarna engine
When a chainsaw’s power wanes, the internal mechanics often need attention. This replacement kit addresses the core of the engine, ensuring the moving parts operate in harmony once again.
Designed for Husqvarna 545 and 550 series saws, this set restores function for owners maintaining their equipment. It suits those who value longevity in their tools and prefer to service rather than replace.


02CONTENTS
A complete set for engine servicing
The package contains all necessary components for a standard piston replacement: one piston, one pin, one ring, and two snap rings. This arrangement allows for a thorough update of the combustion chamber without sourcing individual parts separately.
REFERENCE
Matching the original part numbers
For cross-referencing, this assembly corresponds to part numbers 577 04 70 02 and 577 04 70-06. These codes help identify the correct generation of components, ensuring the new parts align with the existing crankshaft and cylinder head geometry.
AT A GLANCE
The key points
- Fits Husqvarna 545, 545XP, 550, and 550XP models
- Kit includes one piston, pin, ring, and two snap rings
- 43mm bore size for specific engine compatibility
- Replaces part numbers 577 04 70 02 and 577 04 70-06
About this product
“Fits Compatible With Husqvarna 545 545xp 550 550xp. Replacement Part Compatible With 577 04 70 02 577 04 70-06 Package Includes: 1 x Piston, 1 x Pin, 1 x Ring, 2 x Snap Rings. Please Compare Your Original Model Carefully With Our Pictures and Details“ Returns, Refunds and Replacements Products that are received faulty, damaged, or not as described are eligible for a return, refund, or replacement in accordance with the Australian Consumer Law (ACL). We are committed to ensuring all products meet the standards of quality and reliability expected by our customers. However, please note that we do not accept returns or provide refunds for change of mind. We encourage you to carefully consider your purchase to ensure it meets your needs and expectations. Delivery Timeframe Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows: For customers in Victoria, approximately 7-10 working days; For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days; For customers in WA, NT, and TAS, approximately 9-12 working days.















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