GY6 Crankcase Oil Seal (20*30*5)
ITEM# TT-26829
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Description
GY6 Crankcase Oil Seal for 125-150cc Engines
This oil seal for the crankcase suits a range of 125-150cc engines built around a 4-stroke, air-cooled GY6 design. Its job is to keep engine oil contained within the crankcase. Part of our GY6 scooter parts range, it helps stop leaks so the engine runs cleanly.
Construction and Design
This seal is made from Nitrile Butadiene Rubber (NBR), a material that holds up well against engine oil, heat, and everyday wear. It has two lips, and the extra outer dust lip keeps road grit out of the seal area, which helps protect the crankshaft. Measurements are 20mm inner diameter, 30mm outer diameter, and 5mm width, so it seats accurately.
Functionality and Maintenance
An internal tension spring keeps steady pressure against the shaft, including when temperatures swing. Check this part regularly and replace it when needed to maintain a good seal and avoid oil leaks, since leaks can cause serious engine damage over time.
Specifications
- Material: Nitrile Butadiene Rubber (NBR)
- Size: 20mm ID x 30mm OD x 5mm Width
- Position: Crankcase
- Fits: GY6 150cc (157QMJ) engines; generic fit for most 125-150cc GY6 air-cooled 4-stroke engines
Fitment
Fits:
- GY6 150cc (157QMJ) (crankcase position)
- TaoTao Lancer, Icebear Blaze II, Wolf EX-150 (GY6 150cc 157QMJ engine)
- Znen / Jonway YY150T-8, YY150T-12, Falcon 150, Roar 4 (GY6 150cc engine)
- BMS / Puma Heritage 150, Romeo, Juliet, La Vie 150 (GY6 150cc engine)
How to choose: Select a seal that matches your crankcase dimensions of 20mm ID x 30mm OD x 5mm width.
Where it goes: Refer to part #12 on the crankcase diagram for the GY6 150cc (157QMJ).
Shop more: GY6 Scooter Parts · Chinese Scooter Parts · Scooter Gaskets & Seals · Scooter Engines & Engine Parts · Scooter Parts
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