GY6 Crankcase Oil Seal (20*30*5)

GY6 Crankcase Oil Seal for 125-150cc Engines

This GY6 crankcase oil seal is designed for use in various 125-150cc engines that utilize a 4-stroke air-cooling system. It plays an important role in maintaining engine integrity by ensuring that oil remains sealed inside the crankcase. It is one of the GY6 scooter parts that helps prevent leaks and keeps your engine operating smoothly.

Construction and Design

Manufactured from Nitrile Butadiene Rubber (NBR), this oil seal offers excellent durability against engine oil, high temperatures, and wear. The double-lip design includes an additional dust lip that blocks road debris from entering the seal, protecting the crankshaft from damage. This precision-engineered component features exact dimensions of 20mm inner diameter, 30mm outer diameter, and 5mm width for a perfect fit.

Functionality and Maintenance

Featuring an internal tension spring, this oil seal maintains steady pressure on the shaft, even under fluctuating temperatures. Regular inspection and replacement of this part are recommended to ensure proper sealing and prevent oil leaks, which can lead to significant engine damage.

Specifications

• Material: Nitrile Butadiene Rubber (NBR)
• Size: 20mm ID x 30mm OD x 5mm Width
• Position: Crankcase
• Fits: 125-150cc 4-Stroke Air-Cooled Engines

Fitment

This oil seal is compatible with a range of vehicles and engines, including:

• GY6 125cc (152QMI): Wolf Lucky II, TaoTao VIP, Bintelli Flash
• GY6 150cc (157QMJ): TaoTao Lancer, Icebear Blaze II, Wolf EX-150
• Znen / Jonway: YY150T-8, YY150T-12, Falcon 150, Roar 4
• BMS / Puma: Heritage 150, Romeo, Juliet, La Vie 150

Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.

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