ONEWAY BEARING FOR RRCOIL (KE21SP) 74031-10 (12x12x6)MM

Oneway Bearing for Recoil (KE21SP) – 74031-10

The Oneway Bearing for Recoil (KE21SP) – 74031-10 is a precision replacement component designed for nitro RC engines equipped with the KE21SP recoil starter system. This essential drivetrain part ensures smooth and reliable engine starting by transmitting rotation in one direction while allowing free movement in the opposite direction.

Built for durability and consistent performance, it is ideal for maintaining high-performance RC cars and hobby-grade nitro models.

About

The 74031-10 one-way bearing is engineered to support the recoil starter mechanism in KE21SP nitro engines. Its purpose is to engage the crankshaft during starting while allowing the starter system to freewheel once the engine fires. This simple yet critical mechanism ensures reliable ignition and protects the starter assembly from unnecessary wear.

Manufactured from hardened steel with precision-machined internals, the bearing offers a durable build capable of handling the high torque generated during pull-start operations. Its compact and lightweight design allows it to fit seamlessly within the recoil assembly without adding unnecessary weight to the engine system.

The bearing is commonly used in hobby-grade nitro RC cars and is designed to restore smooth starting performance when the original component becomes worn or contaminated with fuel residue. Routine replacement of this part helps maintain optimal engine efficiency and prevents slipping during start-up.

Whether you're maintaining a racing RC car, restoring a high-performance nitro model, or keeping your hobby-grade engine in peak condition, this precision component is a must-have for RC enthusiasts and serious hobbyists.

Key Features

• Precision one-way bearing designed for recoil starter systems
• Compatible with KE21SP nitro RC engines
• Allows rotation in one direction while freewheeling in the opposite direction
• Durable hardened steel construction for long-lasting performance
• Approximate dimensions: 6 mm inner diameter, 12 mm outer diameter
• Lightweight and compact design for easy installation
• Restores reliable pull-start engine engagement
• Ideal for maintenance of high-performance nitro RC cars

What’s Inside the Box

• 1 × Oneway Bearing for Recoil (KE21SP) – 74031-10

Why Buy from Havoc Hobby Private Limited

At Havoc Hobby Private Limited, we specialize in authentic RC parts, scale replicas, and hobby-grade components for enthusiasts and collectors. Every product is carefully sourced and quality-checked to ensure reliable performance for RC cars, model vehicles, and advanced hobby setups. When you purchase from us, you receive trusted products backed by expert support and a passion for the RC hobby.