Proline® Cylinder Piston Kit For Stihl MS291 47mm Nikasil 1141 020 1206 FS310 12-600123-05 EAGER BEAVER 01/86 to

12-600123-05 EAGER BEAVER 01/86 to 05/96

12-600031U PRO MAC 55 08/73 to 03/77 IPL 92384A-R1

2017 NPS50 AC - RUCKUS Carburetor

16-600042-10 PM 310 07/91 to 05/94

015 chainsaws

Proline® Cylinder Piston Kit For Stihl MS291 47mm Nikasil 1141 020 1206 FS310 12-600123-05 EAGER BEAVER 01/86 toProline cylinder piston kit for Stihl MS291 chainsaws. Fits newer style with the round intake clamp. IMPORTANT INSTALLATION NOTE: The exhaust (muffler) mounting holes are not threaded and require self tapping screws, just like the OEM Stihl cylinder. The cylinder mounting holes on this aftermarket cylinder are machine threaded, which differs from the OEM self tapping design. Your original OEM self tapping cylinder screws can still be used and will cut