17x30x5 Oil Seal Crankcase for GY6 50CC Parts Categories

This high-performance oil seal, precisely sized at 17x30x5mm, is engineered as the exact replacement part for 50cc 4-stroke QMB139 engines, ensuring effective crankcase sealing.

• 17mm Inner Diameter: Ensures a snug fit on the crankshaft, preventing oil leakage at the core.
• 30mm Outer Diameter: Provides comprehensive coverage for the crankcase opening, maintaining seal integrity.
• 5mm Thickness: Offers robust sealing capabilities and durability under operational stress.
• QMB139 Engine Specific: Tailored for optimal performance and compatibility with 50cc GY6 4-stroke scooter engines.
• Precision Engineered: Manufactured to exacting standards for reliable, long-lasting protection against oil loss.

Unlike generic seals that may offer a temporary fix, this 17x30x5mm oil seal is built to meet or exceed the demanding requirements of modern 50cc engines, providing superior durability and leak prevention compared to standard aftermarket options.

Key Technical Advantages: Technology and Performance

Engineered with advanced sealing technology, this oil seal delivers exceptional performance by creating a reliable barrier against lubricant escape and contaminant ingress. Its robust construction ensures maximum operational lifespan and maintains peak engine efficiency, making it an indispensable component for vehicle longevity and high-performance riding.