TOP END KIT W/ CYLINDER PISTON For UTV ATV YS 400 HiSUN BENNCHE MASSIMO COLEMAN

Top End Kit with Cylinder and Piston for UTV ATV YS 400

This top end kit includes a cylinder and piston assembly to rebuild the upper end of the YS 400 engine used in UTV and ATV applications.

Overview

This top end kit with cylinder and piston is a rebuild package for the YS 400 engine found in a range of UTV and ATV machines. It provides the cylinder and piston components needed to restore compression and top end performance after wear or damage. It suits owners and shops rebuilding a tired or seized YS 400 powerplant.

Built For Performance

• Complete top end kit pairing a cylinder with a matching piston
• Cylinder bore sized for the YS 400 engine platform
• Piston designed to work with the included cylinder for consistent sealing
• Suited to rebuilds after seizure, scoring, or low compression
• Direct replacement fit for the stock top end layout

Fits These Machines

• for HiSUN YS 400 UTV and ATV models
• for Bennche YS 400 UTV and ATV models
• for Massimo YS 400 UTV and ATV models
• for Coleman YS 400 UTV and ATV models

On-The-Job Use

• Rebuilding a YS 400 engine after top end failure
• Restoring compression on a high-hour UTV or ATV
• Shop repairs on HiSUN, Bennche, Massimo, and Coleman machines
• Seasonal maintenance on utility and recreational side-by-sides

Specs At A Glance

Good To Know

Q: Is this an original equipment top end kit? A: No, this is an aftermarket top end kit with cylinder and piston built to fit the listed YS 400 applications.

Q: What else should I replace during a top end rebuild? A: Gaskets, seals, and piston rings are commonly renewed at the same time, so check your service manual for the full list.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.