Engine oil seals for 125–150 cc 4-stroke scooters. The oil seals close off the points where the shafts exit the crankcase: they keep oil inside and keep air and dirt out of the engine.
The oil seals need replacing when oil leaks appear on the shafts, or the engine holds idle poorly or draws in air. They are usually replaced during any engine rebuild. A new oil seal is pressed in evenly, without misalignment, and the lip is lubricated with oil before installation.
What to consider when choosing:
- oil seal type and dimensions
- engine model
- condition of the seats
