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OS Motors Cylinder & Piston Assembly .25 FX (OS Motors OSMG4861 | OSMG4861)

Model: OS Motors OSMG4861
Dist. #: OSMG4861   SKU: OSMG4861

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Price:  $54.99

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Updated on Sep 28, 2025 01:09:41 PM

Cylinder & Piston Assembly .25 FX...
This is the Stock replacement Piston and Cylinder for the OS Max 25FX.
These parts are located in the body of the crankcase.

FEATURES:
ABN building
Non-ringed

INCLUDES:
One Piston
One Sleeve

NEEDS:
Assembly into engine. Line up notch on sleeve with notch on crankcase

SPECIFICATIONS:
Total cylinder sleeve length: 26mm (1.03")
Bore: 18.0mm (0.71")
Total ports: 4

REMARKS:
The piston and sleeve are just offered as a set. They cannot be
    purchased individually.
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