KE21V Piston & Cylinder Replacement Set - Kyosho 74035-03  [KY-74035-03]

Kyosho 74035-03 - Piston & Cylinder Set(KE21V)
Price:
CAD$206.90
Brand:
Kyosho
Model:
KY-74035-03
GTIN:
4548565513871
Condition:
Brand New
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Replacement piston and cylinder for KE21V

This Kyosho 74035-03 Piston & Cylinder Set is a direct-fit replacement for the KE21V engine family. It provides a straightforward swap when a piston or cylinder shows wear, scoring, or loss of compression during routine maintenance of nitro R/C engines.

Fit this set as part of standard engine service: remove the head and crankcase following the engine manual, inspect the crankshaft and bearings, clean mating surfaces, install the piston and cylinder with correct alignment, and confirm compression before running. The component is intended for maintenance and tuning tasks rather than high-performance modification, helping restore factory compression and extend engine life.

The set targets hobbyist workshop use and track-side repairs where a known-fit replacement is preferred to improvised fixes; always use correct gaskets and follow the engine maker's break-in and tuning steps after fitting.
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.

How do I install the Kyosho 74035-03 on a KE21V?

Start by removing the head and crankcase per the KE21V manual, inspect bearings and the crank, then fit the piston and cylinder in correct orientation and torque components to spec before checking compression.

Which engine model is this compatible with?

This set is compatible with the KE21V engine family. Confirm fitment against your engine serial or manual before purchasing.

Do I need special tools for fitting?

Typical engine service tools—hex drivers, piston fitting tools, and a clean workspace—are usually sufficient. Follow standard disassembly and reassembly procedures.

What checks should I run after installation?

Verify correct compression, perform a controlled break-in run, and check needle settings and cooling during initial operation to ensure proper seating and function.

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