CYLINDER KIT STANDARD 40mm POLARIS 50 ATV

This 50cc cylinder body parts rebuild engine top end kit is a direct OEM replacement designed for small-displacement ATV and scooter engines. It includes all necessary components for a complete top-end rebuild, offering reliable performance and precise compatibility with a wide range of Polaris, Arctic Cat, Bombardier, and Yamaha models.

Features

• Unmatched reliability and performance from high-tech materials
• Manufactured to exacting standards for confident engine rebuilding
• Meets or exceeds OEM quality
• Direct OEM replacement
• Best value for money
• Easy to install; professional installation recommended if unsure

Specifications

• Cylinder head
• Cylinder head and base gasket
• Cylinder body / bore / block: 40mm
• Piston & rings set: 40mm
• Wrist pin, circlips, and wrist pin bearing

Cross-Reference OEM Part Numbers

• Big Bore 70cc Cylinder: 0451718, 0455420
• Gasket – Cylinder: 12191-113-000, 0450008, 0455369
• Gasket – Cylinder Head: 12251-113-000, 0450003, 0455370
• Piston (Oversize 70cc): 0450801, 0450024, 0450022, 0450026
• Cylinder Head: A12201116000, 4DY-E1111-01-00, 3KJ-11111-10-00, 3301-534, 0450001
• Cylinder: A12101116000, 4WX-E1311-00-00, 3KJ-11311-10-00, 3301-532, 0450006
• Piston Kit: A13100116000, 4DY-E1631-00-A0, 3CP-11636-09-00, 3CP-11631-00-96, 3301-539, 0450801, 0450733

Vehicle Fitments

• Polaris Predator 50 2001–2006
• Polaris Scrambler 50 2001–2003
• Polaris Sportsman 50
• Arctic Cat 50 2X4 2004–2005
• Bombardier Mini DS 50 2002–2006
• Yamaha Jog 50 CY50 1992–2001
• Yamaha Zuma 50 YW50 2002–2011