Kyosho 74031-04 Piston & Cylinder Set for KE21SP Engine Replacement Kit  [KY-74031-04]

Kyosho 74031-04 - Piston & Cylinder Set (KE21SP)
Price:
CAD$60.74
Brand:
Kyosho
Model:
KY-74031-04
Condition:
Brand New
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Restore KE21SP Engine Performance

The Kyosho 74031-04 Piston & Cylinder Set is made specifically for the KE21SP engine and serves as a direct replacement to help restore compression and consistent running. This set is intended for hobbyists who need a trusted spare when worn components affect engine response.

Benefits for Your KE21SP

This piston and cylinder set features precision manufacturing tuned to KE21SP dimensions, ensuring correct fit and straightforward installation. Replacing worn internals with a proper set helps preserve engine life and keeps power delivery predictable during club runs or practice sessions.

Fitting and Care Tips

Before fitting the new piston and cylinder, clean all mating surfaces and remove debris to avoid scoring. Use light lubrication on moving parts during assembly and follow routine checks after the first few runs to confirm sealing and smooth operation.
Remark :
Due to limited stock availability, please notice that some Kyosho items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Will this piston and cylinder work in other engine models?

This set is engineered for the KE21SP specification and is not a universal fit for other models. Check your engine code before ordering.

How can I tell when the piston or cylinder needs replacing?

Look for reduced compression, increased smoke, scoring on the piston skirt, or loss of top speed. Regular inspection after heavy use will reveal wear.

Any tips for break-in after installation?

Perform a careful break-in with light runs, moderate throttle, and regular cool-downs. Monitor temperature and seal performance before normal use.

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