40mm Cylinder Rebuild Kit for 2-Stroke 47cc 49cc Pocket Bike Mini Quad & Chainsaw

Product Overview

Restore the compression and power of your 2-stroke engine with the GOOFIT 40mm Cylinder Rebuild Kit. This versatile top-end kit is designed for 47cc and 49cc engines found in pocket bikes, mini quads, and even high-performance chainsaws. Precision-engineered for a perfect seal, it includes everything you need—from the cylinder body to the gaskets—to get your equipment back in peak running condition.

Product Compatibility

This 40mm bore kit is a universal fit for many 2-stroke small engines. Please verify your bolt hole spacing (50mm) before purchasing.

Vehicle/Equipment Type	Common Applications	Engine Match
Pocket Bikes	Mini Gas Scooters, Super Bikes	2-Stroke 47cc / 49cc
Off-Road Mini	Mini Quads, ATVs, Dirt Bikes	40mm Piston / 10mm Pin
Power Tools	High-performance Chain Saws	Compatible 2-Stroke Motors

Specifications

Attribute	Details
Cylinder Bore	40mm
Piston Pin Diameter	10mm
Exhaust Bolt Spacing	40mm
Cylinder Bolt Spacing	50mm
Engine Type	2-Stroke (47cc / 49cc)
Package Includes	Cylinder, Piston, Rings, Gaskets, Clips, Stud

Key Features

• Universal 2-Stroke Fitment: Optimized for 47cc and 49cc engines, making it the ideal replacement for pocket bikes, mini ATVs, and compatible outdoor power equipment like chainsaws.
• Precision 40mm Bore: High-quality cylinder lining ensures a consistent seal and smooth piston movement, restoring lost compression and engine response.
• Complete Top-End Solution: This all-in-one package includes the cylinder body, piston, rings, 10mm pin, clips, and essential gaskets for a leak-proof installation.
• Durable Construction: Built with heat-resistant alloys to handle the high temperatures of air-cooled 2-stroke engines, extending the lifespan of your machine.
• Direct Bolt-On Design: Features standard 50mm bolt spacing and 40mm exhaust spacing for a straightforward replacement process without modifications.