Minarelli 40mm Piston Kit - 10mm or 12mm Wrist Pin

40mm Piston Kit for Minarelli Engines and Yamaha Scooters

This piston kit is designed for Minarelli 1PE40QMB and 40QMB engines, commonly found in various 50cc scooters. It includes all necessary components for a complete replacement, ensuring a straightforward installation. This part is one of the Minarelli 50cc / Yamaha jog scooter parts that is fundamental for maintaining engine performance. Choose between a 10mm or 12mm wrist pin to perfectly match your engine configuration.

Complete Replacement Components

This kit includes everything needed for a successful rebuild: a piston, wrist pin, piston rings, and two circlips. These components work together to ensure reliable engine function and performance. With a bore diameter of 40mm and a height of 50mm, this piston is a direct OEM substitute, making it easy to replace the old part with precision.

Engine Compatibility

The piston is compatible with Yamaha Jog-based 50cc two-stroke engines and various Chinese 40QMB clones. This makes it an excellent choice for scooter enthusiasts looking to restore performance or address wear in their engines. When the piston begins to show signs of wear or damage, replacing it will help maintain the engine's overall health and efficiency.

Specifications

• Piston Diameter: 40mm
• Piston Height: 50mm
• Piston Pin: 10mm or 12mm (select variant)
• Includes: piston, pin, rings, and 2 circlips
• Engine Compatibility: Minarelli 1PE40QMB / 40QMB 50cc 2-stroke

Fitment

This piston kit fits a range of vehicles equipped with the Minarelli engine. It is ideal for:

• Yamaha Jog 50
• Yamaha BWS 50
• Chinese 40QMB-based 50cc scooters

Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.

Shop more: Minarelli 50cc / Yamaha Jog Parts · Scooter Pistons & Piston Rings · Scooter Bolts, Screws & Hardware · Scooter Parts