The Meteor Piston company has been making pistons for small two cycle engines since 1952. These pistons are a high quality replacement option for your professional chainsaw. Each piston assembly include a piston, rings, wrist pin and circlips. This piston comes with high performance Caber F-cast rings. We recommend replacing your cylinder gaskets and using a piston ring clamp set to help when changing a piston.

Fits the following models:

• Stihl 039, MS 390
• Replaces Part Number 1127 030 2005
• Bore 49mm
• Height 37mm
• Head Type Flat
• Rings 49mm x 1.5mm Ductile Split Groove
• Piston Pin 10mm x 6mm x 31mm
• Circlips 10mm
• Compression/Pin Top to top of Piston 15.5mm
• Compression/Pin Center to top of Piston 20.5mm