HA245 Copper Gasket - Hatroi, compatible with #831 OS FS-200S-P  [HA245]

Copper head gasket compatible with OS FS-200S-P

The Hatroi HA245 copper gasket is an RC replacement head seal specified for the #831 OS FS-200S-P engine. It forms the sealing interface between the cylinder head and crankcase on glow engines, helping to sustain compression and proper combustion chamber sealing during regular service.

To fit the HA245: remove the cylinder head, inspect and clean both mating surfaces, set the copper gasket flat on a clean face, and reassemble using the engine manufacturer's recommended fastener sequence with careful, even tightening to prevent distortion. Avoid modifying the gasket thickness or shape and do not overtighten the fasteners.

Functionally the copper gasket maintains compression and prevents fuel or oil seepage at the head joint; replacing a worn or flattened Hatroi HA245 can resolve symptoms such as weak throttle response or higher fuel consumption. Keep replacement gaskets available when performing rebuilds or periodic maintenance.