GY6 50cc (139QMB) Oil Pump Sprocket - 47 Teeth

GY6 50cc Oil Pump Sprocket for 4-Stroke Engines

This 47-tooth oil pump sprocket is made for 50cc 4-stroke QMB139 engines. It helps move oil through the engine as intended, which supports steady running. Swap it out when the chain starts to stretch or when the teeth look worn or broken. You can find it among the GY6 50cc scooter parts we carry for keeping a scooter in good working order.

Function Overview

Chains and sprockets carry power to the rear wheel on chain-driven scooters, small motorcycles, and pocket bikes. As the oil pump sprocket wears, engine performance can suffer, so replacing it on time helps the engine keep running dependably.

Specifications

• Number of Teeth: 47
• Outer Diameter: 73mm
• Fits: GY6 50cc (QMB139) 4-stroke engines, 47-tooth oil pump sprocket

Compatibility

Fits:

• 50cc 4-stroke QMB139 engines
• Various unlisted makes and models with QMB139 engine

How to choose: Confirm that your engine is a QMB139 50cc 4-stroke, then make sure the sprocket has 47 teeth and a 73mm outer diameter.

Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Chains & Sprockets · Scooter Oil & Maintenance · Scooter Parts