Stihl Ms391 Replacement Piston 49mm, Replaces Part # 1140 030 2003
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Stihl Ms391 Replacement Piston 49mm, Replaces Part # 1140 030 2003

$30.95
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Suitable, high quality replacement STIHL MS391 REPLACEMENT PISTON 49MM, REPLACES PART # 1140 030 2003 We sell all 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 after the manufacturing of 50,000 pieces. All tooling is checked on a monthly basis. 6.Quality Control- Special inspection is done on every cylinder inlet and exhaust port whi

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