This cylinder kit is a replacement top-end engine component for selected Yamaha 50cc liquid-cooled scooters. It is intended to restore the cylinder assembly to a standard-bore configuration during engine repairs or rebuilds on compatible Aerox, Nitro and related models.

Features

• Direct replacement cylinder kit for compatible Yamaha scooter engines
• Intended for top-end engine repairs and rebuilds
• Suitable for liquid-cooled 50cc applications
• Designed for use on standard-bore engine builds
• Fits the verified Yamaha models listed below

Specifications

• Bore size: 40 mm
• Bore type: standard
• Piston Pin 10mm
• Piston Length 50mm
• Cooling type: water-cooled
• Application: Yamaha 50cc scooter engine

Cross-Reference OEM Part Numbers

• 56-K305.40.CKA
• 120610527 ALUKIT

Vehicle Fitments

• Yamaha YQ L Nitro Jaguar 50, 2004
• Yamaha YQ Nitro 50, 1997-2002, 2004
• Yamaha YQ Nitro (Ita) 50, 1997-2000
• Yamaha YQ Nitro Euro2 50, 2003
• Yamaha YQ Aerox 50, 1997-1998, 2001-2002, 2004-2012
• Yamaha YQ Aerox R 50, 1999-2000
• Yamaha YQ L Aerox Euro2 50, 2003
• Yamaha NS50 Aerox 50, 2013-2016
• Yamaha NS50N Aerox Naked 50, 2013-2016