O.S. Connecting Rod Complete – 91SX-H / 105HZ

This is a genuine O.S. Engines Connecting Rod, designed for the O.S. MAX 91SX-H C-Spec helicopter engine.

This connecting rod links the crankshaft to the piston and is a critical internal engine component for maintaining proper compression, power transfer, and smooth engine operation.

This part is also commonly used as the replacement connecting rod for the O.S. 105HZ helicopter engine.

• Genuine O.S. Engines replacement part
• Machined aluminum construction
• Pre-installed brass bushings
• Connects the crankshaft to the piston
• Suitable for engine repair, rebuild, or maintenance

• One O.S. connecting rod

• Installation into engine
• Basic engine disassembly/reassembly knowledge

Length: 53.5mm / 2.10"
Width: 12.55mm / 0.49" at widest point

Please verify your engine model and part number before ordering.