
Jonsered 49SP, 51, 52 Piston Kit 44mm Replaces Part # 504141201
Jonsered 49sp, 51, 52 44mm, Includes Everything In The Picture, Replaces Jonsered Part # 504141201, This Kit Will Fit The 49sp Chainsaw, Be Sure To Mic Your Piston Assembly To Ensure Correct Mm Size Before Ordering. Note: This Piston Kit Is Not Made In China Or Taiwan. We sell all our cylinders and pistons with the up-most confidence due to the following reasons: 1.Material- The factories use the highest grade material coming from Japan. This is AC4B. 2.Coating- Before coating, all 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 aft