PISTON PIN (KE21SP) 74031-06

Piston Pin (KE21SP) 74031-06

The Piston Pin (KE21SP) 74031-06 is a precision engine component designed for .21 size nitro RC engines. It securely connects the piston to the connecting rod, ensuring smooth movement and reliable power transfer inside the engine.

Ideal for maintenance and rebuilds, this high-quality spare part helps restore engine performance and extend the life of your RC car engine.

About

The Piston Pin (KE21SP) 74031-06 is an essential internal engine component used in .21 size nitro engines. Manufactured from durable hardened steel, this pin provides the strength and precision needed to withstand high RPM operation and combustion pressure in high-performance RC engines.

Designed specifically for the KE21SP nitro engine, the piston pin forms the pivot connection between the piston and the connecting rod. This connection allows the piston to move smoothly within the cylinder while maintaining proper alignment during engine cycles, helping the engine deliver consistent power and efficiency.

The precision-machined design ensures a tight and secure fit, reducing vibration and minimizing wear on internal engine parts. Replacing worn piston pins during engine servicing helps maintain compression, smooth throttle response, and long-term reliability.

This spare part is ideal for RC enthusiasts performing engine rebuilds, routine maintenance, or upgrading worn components in nitro-powered RC cars and off-road racing models. It is recommended for hobbyists and racers who want dependable engine performance and durability.

Key Features

·         Precision piston pin designed for KE21SP nitro RC engines

·         Connects piston and connecting rod for smooth engine operation

·         Hardened steel construction for durability and long service life

·         High-precision machining ensures proper alignment and reduced friction

·         Suitable for .21 class nitro engines used in RC cars and trucks

·         Ideal replacement part during engine rebuild or maintenance

·         Helps maintain stable engine compression and performance

·         Compatible with hobby-grade RC engine assemblies

What’s Inside the Box

·         1 × Piston Pin (KE21SP) 74031-06

Why Buy from Havoc Hobby Private Limited

At Havoc Hobby Private Limited, we provide genuine hobby-grade RC parts and accessories trusted by enthusiasts and professional racers. Every component is carefully selected to ensure reliability, performance, and compatibility with high-performance RC models. When you shop with us, you get authentic products, expert support, and quality you can trust for your RC builds and repairs.