is intended for use with the O.S. 91HZ F3C, and 91HZ-PS Helicopter Engines. This Part Is Used In The Following O.S. ... DH 91SZ-H 91SZ-H PH NOTE: This part may be compatible ...

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 ...

widely used O.S. glow plug for O.S. engines. Recommended for most current O.S. (and other brands of) 2-stroke R/C engines. Note that O.S. engine plugs are SHORT body plugs and should only ...

91/105 Helicopter Exhaust Muffler from XLPower. Designed for seamless compatibility with YS and OS engines, this versatile muffler eliminates the need for switching adapters. Extensively tested by Kenny himself, it ensures top ...