Piston Kit Set with Rings for HUSQVARNA 545 550XP Chain Saw Replacement 43mm 577 04 70‑02

Feature: 1. Lightweight high‑silicon aluminum alloy bring strong thermal diffusion ability, very useful 2. The thermal conductivity is increased by 42percent compared with the bimetal structure, has a good thermal fit to the piston and reduces the weight of the whole machine 3. One‑piece molding, increase the strength of the machine body and improve the surface hardness 4. Greatly improved wear resistance, corrosion resistance and high temperature impact resistance, firm and stable 5. Strong gas compression ability bring surging power, clear thread and smooth knob, not easy to jam Specification: Item Type: Piston Kit Material: High silicon aluminum alloy Piston Diameter: Approx. 43mm 1.7in. Package List: 1 x Piston1 x Piston Circle2 x Piston Ring1 x Piston Pin