Complete GY6 50cc 139QMB engine oil seal kit featuring four precision seals for critical engine components.

Includes dual crankshaft seals (left and right), plus input and output shaft seals. Each seal is engineered to prevent oil leakage and maintain engine integrity.

• 1x : 27x42x7mm
• 1x : 16,4x30x5mm
• 1x : 19,8x30x5mm
• 1x : 17x30x6mm