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Smithsonian Motor Works Transparent 4-Cylinder Engine Kit is a transparent electric teaching model with moving pistons, crankshaft, valves, fan and il..
-51%
$78.39 $160.70
Stock: In Stock
TOYAN FS-S100AT 3.5cc Transparent 4-Stroke RC Engine is a compact single-cylinder four-stroke engine with an observable chamber design and current sup..
-51%
$342.99 $703.13
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