O.S. Engine FSa-110 Intake Manifold OS44969400 for FS Engines  [OS44969400]

Manifold function and intake routing

Sold as O.S. Engine OS44969400 FSa-110, this intake manifold is the connection piece between carburetor and the intake flange on FS-series glow engines and is supplied as a replacement component for engines using the FSa-110 spec.

The component routes the mixed fuel and air to the engine while maintaining correct alignment and a sealed mounting plane. Before installation confirm the flange faces and mating surfaces are clean and intact to prevent unwanted air entry.

Practical tips for fitting: reuse the engine's original mounting hardware where it is in good condition, replace worn gaskets or seals, and draw down fasteners evenly to preserve flange geometry. Changing intake geometry can influence throttle feel and mid-range power, so run engine checks and fine tune the carburetor after fitting.