Crankshaft Assembly RedCap Steel 150cc GY6

Description

Product Overview

The RedCap Crankshaft Assembly is a high‑performance replacement designed for 150cc GY6 4‑stroke engines commonly used in scooters, ATVs and go‑karts. Crafted from top‑grade alloy steel, the crankshaft offers superior wear resistance, corrosion protection and thermal stability. It matches OEM specifications with a 15mm inside diameter, 17‑tooth timing sprocket, 19‑tooth spline and M12x1.25 thread, ensuring seamless integration. The package includes pre‑installed 63/22×2 main bearings and measures 285 mm in total length, fitting within the original engine housing.

Usage

Designed for riders seeking enhanced power and reliability, this crankshaft excels in daily commuting, off‑road adventures and competitive go‑kart racing. Its robust construction handles extreme riding conditions, delivering smoother acceleration and consistent torque across a wide RPM range. Whether you are restoring an older model or upgrading a current ride, the assembly provides the performance boost needed for demanding environments.

Why Choose Us

RedCap combines precision engineering with rigorous quality control to produce components that exceed standard OEM parts. Each crankshaft undergoes CNC machining and heat treatment to guarantee exact tolerances and long‑term durability. Our commitment to customer satisfaction is reflected in a 4.5‑star rating from 22 verified reviews and a top‑ranking position in the automotive replacement crankshaft category.

Key Features

• High‑grade alloy steel construction for maximum strength and wear resistance
• Optimized design reduces friction, increasing torque and acceleration
• Precise OEM dimensions ensure a perfect fit for 150cc GY6 engines
• Pre‑installed main bearings simplify installation and reduce downtime
• Lightweight yet durable, weighing only 6.27 lb for easy handling

FAQ

Is this crankshaft compatible with all 150cc GY6 engines?

It is compatible with the majority of Chinese‑made scooters, ATVs and go‑karts that use a 150cc GY6 4‑stroke engine, matching OEM specifications for a direct replacement.

Do I need special tools to install the assembly?

Standard hand tools and a basic socket set are sufficient. The crankshaft comes with pre‑installed bearings, so no additional machining is required.

How does the alloy steel improve performance?

The alloy steel provides higher tensile strength and better heat dissipation, which reduces wear and allows the engine to maintain higher torque output under load.

What is the warranty period?

RedCap offers a one‑year limited warranty covering manufacturing defects for peace of mind.

Can I use this part for racing applications?

Yes, the crankshaft’s reinforced design and reduced friction make it suitable for both street use and competitive racing environments.