FS Series Intake Valve OS44850000 - O.S. Engine  [OS44850000]

O.S. ENGINES INTAKE VALVE FSa-81
Price:
£9.43
Brand:
O.S. Engine
Model:
OS44850000
GTIN:
4531028142343
Condition:
Brand New
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Overview of FS intake component

The O.S. Engine intake valve OS44850000 (FSa-81) serves as the intake-side valve for FS-series engines and is offered as a spare part for maintenance and repairs. It is provided individually to replace worn or damaged intake valves in small model engines.

Carry out installation in line with the engine's service handbook. Remove the head per the instructions, inspect the valve seat and retainer condition, install the replacement valve, and reassemble using the recommended clearances and torque values. If you lack confidence, consult a qualified model engine technician.

In terms of fitment and compatibility, this valve supports sealing integrity and stable induction performance. Regular checks during scheduled servicing reduce the chance of unexpected degradation in running quality.

Does this replace all FS intake valves regardless of year?

It is intended for FS-series engines, but variations can exist between production runs. Always confirm the OS44850000 part code and FSa-81 reference against your engine's parts list before fitting.

How do I verify correct fitment after installation?

After fitting, check for proper seating and absence of intake leaks, then perform a short running test and inspect for stable idle and consistent throttle response.

Can older engines need alternative parts?

Some older FS models may use slightly different valve variants. If your engine manual lists a different code, do not assume interchangeability; match the exact part number before purchasing.

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