Stihl FS85 String Trimmer Piston Kit 34mm Replaces Stihl Part # 4137-034-3000

Stihl Fs85 Piston Kit, Specs: 34mm Piston, 2 Rings Piston, Includes Piston Pin And Clips, This Is A New Piston Replacement Kit Replaces Stihl Part # 4137-034-3000, Note This Kit Is Not Made In China. This Is A Very High Quality Replacement Cylinder Piston Kit. Material- The factories use the highest grade material coming from Japan. This is AC4B. 2. Coating- Before coating, all performance saw cylinders are put through 13 preliminary processes to ensure maximum penetration, thickness and coverage. Coating thickness is .04-.06 mm of chrome which increases the life of the cylinder. 3. Machining- Complete machining on all cylinders is performed by accurate CNC tool machines. 4. Die-Casting- All cylinders are made by slow gravity fed die-casting. This increases the weight of the cylinder which enhances the performance and life of the rebuild. 5. Tooling- Each cylinder tooling has limited life and are replaced after the manufacturing of 50,000 pieces. All tooling is checked on a monthly ba