O.S. Engine OS44503200 Piston for FS-200S and FS-200S-P  [OS44503200]

O.S. ENGINES PISTON FS-200S,FS-200S-P
Price:
CAD$41.41
Brand:
O.S. Engine
Model:
OS44503200
GTIN:
4531028140844
Condition:
Brand New
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Replacement piston for the FS-200S family

The OS44503200 piston is a direct-replacement item for O.S. Engine FS-200S and FS-200S-P models. It is intended to restore compression and help maintain steady performance in glow-powered RC engines.

During an engine service, swapping a worn piston can re-establish solid ring-to-cylinder contact and reduce blow-by that harms idle quality and throttle response. Fit the new piston to the correct cylinder and install the proper ring set to ensure intended service results.

Specifications

  • Item: Piston
  • Material: Not specified
  • Model Number: OS44503200
  • Compatibility: FS-200S, FS-200S-P

Install this piston as a direct-fit replacement during maintenance or prior to tuning; confirm ring condition and clearances at installation to secure reliable compression and engine response.

Is the OS44503200 piston a direct fit for FS-200S and FS-200S-P?

Yes. The part OS44503200 is listed for use with FS-200S and FS-200S-P engines as a direct replacement.

What should I inspect on the engine before fitting the new piston?

Check the cylinder bore for scoring or taper, examine the piston ring and groove condition, and clean any debris before installing the replacement piston.

Will replacing the piston improve idle and throttle response?

Replacing a worn piston typically restores compression and reduces blow-by, which helps stabilise idle and smooth throttle transitions.

Are new piston rings required when fitting this piston?

It is recommended to fit rings specified for the FS-200S series at the same time; source the correct rings from authorised O.S. Engine parts suppliers to guarantee fit.

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