Fan wheel GY6 50ccm 139QMB/QMA

The fan wheel from NovaParts is an essential spare part for scooters with the standard GY6 engine, also known as 139qmb/qma.

Function and meaning:

The fan wheel is a fundamental component of the cooling system. With a diameter of approximately 110mm and 4 fastening sleeves cast into the wheel, it ensures efficient cooling of the motor. It is screwed onto the flywheel so that the rotation generated draws air through the heat sink and thus improves heat dissipation.

Why and when to replace it:

Replacing the fan is recommended if damage, cracks or deformations are found. These can lead to insufficient cooling of the motor, which can result in overheating and related problems.

Material and functionality:

Made from durable plastic, the fan wheel is resistant to the operating conditions of the engine. It uses the rotational movement of the engine to move air through the heat sink and thus effectively dissipate the heat. The 4 molded sleeves ensure easy and stable attachment.

How it works and how it is installed:

The fan wheel is securely mounted on the flywheel using cast-in sleeves. The mounting holes are spaced approximately 65mm apart, allowing for easy installation and secure mounting. Proper mounting is critical to ensure effective cooling and maintain motor performance.

Replacing the fan in a timely manner ensures that the engine is cooled efficiently, increasing the longevity and performance of the engine and preventing possible damage from overheating.