Bearing, and is intended for use with the O.S. 91HZ-PS Helicopter Engine. Dimensions: Inside Diameter: 17mm Outside Diameter: 35mm Thickness: 8mm This Part Is Compatible With The Following O.S. ... 61RX-HGL 61SX-HGL ...

Nipple (pressure fitting). This Fuel inlet nipple is used in a variety of O.S. engines from sizes .12 to 2.40, so please check your instruction manual or www.osengines.com to verify that this ...

91HZ F3C competition helicopter engine and the 91HZ-PS 3D PD-08 pump engine.Features: Aluminum construction Replaces worn or damaged pistons Includes: One piston for the 91HZ F3C and 91HZ-PS EnginesRequires: Installation on the ...