Crankcase Set (KE21SP) 74031-07 WITH PISTON & CYLINDER SET (KE21SP) 74031-04

Crankcase Set (KE21SP) 74031-07 with Piston & Cylinder Set (KE21SP) 74031-04

Short Introduction

The Crankcase Set (KE21SP) 74031-07 with Piston & Cylinder Set (KE21SP) 74031-04 is a precision-engineered replacement engine component designed for KE21SP nitro RC engines. This essential rebuild kit restores compression, engine alignment, and overall performance for hobby-grade RC vehicles.

Ideal for maintaining high-performance RC cars and racing models, this set ensures smooth operation and long-lasting durability.

About

The crankcase is the structural core of a nitro RC engine, housing the crankshaft and supporting internal engine components. The KE21SP Crankcase Set is manufactured with precise machining and durable alloy construction to maintain perfect alignment and reliable sealing during high-speed operation.

Included in this package is the matched piston and cylinder set, designed to restore compression and improve throttle response in worn engines. This matched assembly ensures proper sealing and efficient combustion, allowing your RC engine to deliver consistent power and stable tuning.

Together, these components form a complete rebuild solution for KE21SP nitro engines commonly used in high-performance RC cars and racing buggies. Whether your engine has suffered wear from extended racing or requires routine maintenance, this set helps bring it back to peak condition.

Installation is straightforward for hobbyists familiar with RC engine maintenance. Once installed and properly tuned, the engine regains smooth acceleration, improved reliability, and longer service life, making it perfect for both competitive racing and regular hobby use.

Key Features

·         Designed specifically for KE21SP nitro RC engines

·         Includes crankcase set and matched piston & cylinder assembly

·         Precision-machined alloy crankcase for accurate engine alignment

·         High-quality piston and cylinder for restored compression and power

·         Direct-fit replacement for worn or damaged engine components

·         Durable construction suitable for high-performance RC car racing

·         Ideal for engine rebuilds, maintenance, and performance restoration

·         Compatible with hobby-grade nitro RC cars using KE21SP engines

What’s Inside the Box

·         1 × Crankcase Set (KE21SP) – 74031-07

·         1 × Piston & Cylinder Set (KE21SP) – 74031-04

Why Buy from Havoc Hobby Private Limited

At Havoc Hobby Private Limited, we supply authentic hobby-grade RC parts and accessories trusted by enthusiasts and racers. Every product is carefully selected to ensure compatibility, durability, and performance. Whether you are repairing, upgrading, or maintaining your RC car, you can count on reliable parts and professional service from a trusted hobby retailer.