The Kyosho 74031-07 Crankcase Set is intended as a direct replacement for the KE21SP engine, preserving the original mounting and internal clearances. It suits racers and weekend users who want a dependable service part for ongoing use.
Machined to maintain correct crank and bearing positions, this crankcase supports steady running and helps reduce vibration when assembled correctly. Regular inspection and correct installation will extend engine service intervals.
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