O.S. Engine OS44501110 Cam Cover Gasket O-ring for FS-200S Series  [OS44501110]

Replacement cam cover seal for FS-200S family

This O.S. Engine cam cover gasket is an OEM-style replacement O-ring for the FS-200S lineup of nitro engines. It reestablishes the seal at the cam cover to prevent fuel intrusion and crankcase leakage that can interfere with engine performance.

Fitment is confined to the exact model identifiers listed: FS-200S and FS-200S-FI. Verify these codes before assuming compatibility with other engines.

Installation pointers: check the cam cover groove for grime or sharp edges, ease the O-ring into place without stretching it excessively, and confirm the cover is aligned before final torque. A small dab of compatible lubricant can make fitting easier, and discard any ring that shows cuts or hardening.

Why it matters: a sound cam cover O-ring helps preserve crankcase pressure and stops fuel leaks that may shift needle settings or create erratic idling, so include it in routine engine servicing and rebuilds.