Chinese 50cc 139QMB Complete Engine Gasket Set

Description

Complete 139QMB Engine Gasket Set

Eliminate leaks and restore engine compression with the Universal Parts Complete 50cc Engine Gasket Set. Whether you are performing a top-end refresh or a full crankcase split, this comprehensive kit provides every seal and gasket required to properly close up a 50cc 4-stroke engine. Designed to meet or exceed OEM specifications, these gaskets are manufactured from high-density materials that resist the heat and chemical breakdown common in air-cooled scooter engines.

Comprehensive Component List

• Engine Case Gaskets: Includes the center crankcase and stator/magneto cover gaskets.
• Top-End Seals: Features the cylinder head gasket, base gasket, and valve cover seal.
• CVT & Transmission: Includes a high-quality CVT cover gasket tailored for your specific case length.
• Exhaust & Intake: Comes with a crush-style exhaust gasket and the intake manifold spacer O-ring.

Sizing Guide & Selection

QMB139 engines come in multiple configurations.

Please use the Drop-Down Menus above to select the correct size for your build:

Installation Tip: Always ensure the engine mating surfaces are scraped perfectly clean and free of old gasket material before installing the new set. 

Vendor: Universal Parts
Engine Type: GY6 50cc 4-Stroke (QMB139 / 1P39QMB)