GF30 Compatible Piston Pin - O.S. Engine OS4A006000  [OS4A006000]

About the piston pin for GF30 engines

This O.S. Engine OS4A006000 piston pin is supplied as an RC-scale spare compatible with GF30 engine assemblies. The pin secures the piston to the connecting assembly inside the cylinder and is provided as a single replacement for servicing or repairing compatible GF30 model engines.

When servicing, remove the piston assembly, check circlips and the piston bore for wear or scoring, insert the pin through the piston and small end, and ensure the retaining clips are correctly seated. Perform a lateral-play check and confirm smooth pivoting to validate proper installation.

Replacing a worn piston pin can help eliminate piston slop that undermines compression and combustion consistency. Take care with circlip installation to avoid damage, do not force the pin into place, and follow any service clearances and lubrication instructions from the engine documentation.