O.S. Engine OS44802000 Crankshaft FSa-81 Replacement for RC Engine Service  [OS44802000]

O.S. ENGINES CRANKSHAFT FSa-81
Price:
CAD$44.78
Brand:
O.S. Engine
Model:
OS44802000
GTIN:
4531028142244
Condition:
Brand New
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alt="O.S. ENGINES CRANKSHAFT FSa-81" title="O.S. ENGINES CRANKSHAFT FSa-81"

O.S. Engine OS44802000 FSa-81 crankshaft summary

The O.S. Engine OS44802000 listed as Crankshaft FSa-81 serves as a direct replacement for RC engine assemblies carrying the FSa-81 identifier. This description gives hands-on guidance for modelers and mechanics checking fitment, preparing for installation, and considering the crankshaft during routine bench tuning and repairs.

Manufacturer documentation only cites the model number, so specific engine compatibility is not supplied. Before fitting, match journal diameters, verify any keyways or flats, and confirm stroke orientation to protect timing and seal alignment. Accurate dimensional checks will prevent misfit and drivetrain issues.

Installation notes: use this crankshaft in standard rebuild workflows, inspect connecting rods, bearings, and seals for wear, and replace suspect components to avoid premature failure. Keep original orientation marks if present and torque fasteners to the engine maker's published values for safe operation.

Specifications

  • Item: Crankshaft FSa-81
  • Material: Not specified
  • Model Number: OS44802000
  • Compatibility: Not specified

Fit the OS44802000 only when the engine parts list or service code indicates FSa-81, and confirm dimensional match before final assembly and tuning.

How is this crankshaft typically used?

It is supplied as a numbered replacement crankshaft for engines carrying the FSa-81 code, intended for rebuilds and maintenance where the part code matches the engine documentation.

What checks confirm correct fitment?

Measure journal diameters, inspect for keyways or flats, and compare stroke orientation to the original crank to ensure proper timing and seal seating.

Are bearings or seals provided?

The source lists only the crankshaft itself; assume bearings and seals are not included and replace or reuse as advised after inspection.

Any tips for reassembly?

Clean mating surfaces, preserve orientation marks, replace worn bearings or seals, and use the engine manufacturer's torque settings to secure fasteners.

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