Husqvarna 266XP/61 Piston & Carb Kit – OEM 503-5175-02

This **52mm large-bore cylinder piston overhaul kit** from RUURUU is a direct OEM replacement for Husqvarna part number **503-5175-02**, designed specifically for the **266XP, 266, 266SE, XP SE, and 61 chainsaw models**. Engineered to restore performance, the kit includes a **carburetor, piston assembly, bearing, decompression valve, spark plug, intake manifold, adapter, and a 5-piece gasket set**—all essential components for a complete cylinder and carburetor rebuild. The inclusion of an adapter and manifold ensures seamless integration with your Husqvarna’s existing system, while the OEM-spec piston and carburetor components guarantee compatibility and reliability.

Ideal for professional arborists, tradies, or DIYers servicing Husqvarna chainsaws, this kit simplifies maintenance by bundling everything needed for a full rebuild in one package. The **52mm bore size** matches Husqvarna’s original specifications, ensuring proper fitment and performance. Whether addressing wear from heavy-duty use or preparing for seasonal maintenance, this kit provides a cost-effective alternative to sourcing parts individually. Weighing **1.12kg**, it’s easy to handle and store, and the inclusion of critical seals and fasteners minimises the risk of leaks or misalignment during reassembly.

RUURUU’s kit adheres to Husqvarna’s engineering standards, making it a trusted choice for those seeking OEM-quality replacement parts. The decompression valve and bearing are precision-matched to reduce friction and extend engine life, while the carburetor rebuild components help maintain optimal fuel delivery. For chainsaw owners prioritising durability and efficiency, this kit offers a comprehensive solution to keep their equipment running at peak performance.