Fits Models: Stihl 039 and MS 390 chainsaws
Specifications: Bore Size: 49 mm Bore Size 49 mm Includes Piston, rings, pin and clips Ethanol Not compatible with greater than 10% ethanol fuelBase gasket not available, use 751-708 Gray Silicone RTV gasket maker
Additional Information: Use with 635-221 Intake Manifold 635-221 Intake Manifold, Use with 751-708 Gray Silicone RTV Oxime Gasket Maker 751-708 Gray Silicone RTV Oxime Gasket Maker, Use with 500-350 Piston Rings STD 500-350 Piston Rings STD
