Precision Replacement Kyosho 74031-06 Piston Pin for KE21SP  [KY-74031-06]

Kyosho 74031-06 - Piston Pin (KE21SP)
Price:
NZD$17.23
Brand:
Kyosho
Model:
KY-74031-06
GTIN:
4548565349265
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 $14.49 each $5.49 or 16%
3+ $13.77 each $10.38 or 20%
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Precision piston pin Kyosho 74031-06 for KE21SP servicing

Designed for the KE21SP engine, the Kyosho 74031-06 piston pin ensures the piston is securely linked to the connecting rod, helping preserve smooth operation and reduce premature wear. It is a straightforward part to replace during an engine service.

Why this pin matters and where to use it

Accurate fitment of the piston pin keeps piston travel true and minimises side loads that accelerate wear. The Kyosho 74031-06 offers consistent alignment for KE21SP rebuilds and tune-ups. Use it when refreshing the top end for improved consistency on the track or during casual running.

Is the Kyosho 74031-06 compatible with other Kyosho engines?

This pin is specified for KE21SP applications. Other engines may use different pin lengths or diameters, so compatibility is not guaranteed without a dimension check.

What signs indicate the pin needs replacing?

Look for wear marks, fretting, ovalisation or noise from the small end. If the pin no longer sits tight in the piston or rod, fit a replacement to avoid further engine damage.

Any tips for installing the pin?

Clean mating surfaces, check fitment alignment, and install carefully to avoid scoring. Use correct circlips or retainers and verify free piston movement before final assembly.

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