O.S. Piston Pin for 91HZ / 105HZ Helicopter Engines

This genuine O.S. Engines piston pin is a direct replacement part for select O.S. helicopter and aircraft engines. Manufactured to original factory specifications, it ensures proper piston-to-connecting rod alignment and reliable engine performance.

Compatible with O.S. 91HZ F3C, 91HZ-PS 3D, O.S. 105HZ series helicopter engines, and O.S. 61FX ABL aircraft engines.

Ideal for engine rebuilds, repairs, or routine maintenance using genuine O.S. replacement parts.