O.S. Engine OS28704161 0.1T Head Gasket 105HZ Replacement for Durability  [OS28704161]

Durable replacement gasket for O.S. powerplants

This replacement gasket fits RC O.S. engine heads and is stamped 0.1T and 105HZ to match original specifications. It seals between the cylinder head and crankcase, helping to retain compression and prevent leakage during extended use. The part is intended for scheduled maintenance and when a stable sealing surface is needed to preserve engine performance.

Installation tips: remove any remnants of the previous gasket and ensure mating surfaces are smooth and clean. Fit the gasket in the correct orientation and follow a stepped tightening routine to avoid uneven compression. Check the gasket after the first few runs for any signs of blow-by or compression loss.

Service note: consistent inspection will show when a gasket has taken a compression set or degraded; replacing with the OS28704161 gasket restores head volume control and helps maintain reliable engine operation.