440cc 89mm Big Bore Jug Cylinder for Honda TRX400EX TRX400X Top End Rebuild

440cc 89mm Big Bore Jug Cylinder for Honda

This 440cc 89mm big bore jug cylinder increases engine displacement and restores top-end power during an engine rebuild.

Overview

This 440cc 89mm big bore jug cylinder is engineered to replace worn engine cylinders and increase total displacement. The 440cc 89mm big bore jug cylinder features a precision bore to deliver optimal compression and power output. Designed for riders seeking to restore performance, this 440cc 89mm big bore jug cylinder provides excellent thermal dissipation under heavy loads.

Built For Performance

• Cast aluminum construction for superior heat dissipation
• Precision-honed 89mm cylinder bore for smooth piston travel
• Durable sleeve lining to resist wear under high combustion temperatures
• Matches OEM deck height for proper gasket sealing

Fits These Machines

• for Honda TRX400EX
• for Honda TRX400X

On-The-Job Use

• Performing a top-end engine rebuild on your ATV
• Restoring engine compression and power efficiency
• Expanding displacement for increased torque in off-road environments

Specs At A Glance

Good To Know

Q: Do I need to modify my crankcase to fit this cylinder? A: This 89mm cylinder is designed to fit the standard engine crankcase without any machining. Ensure all mating surfaces are clean before installation.

Q: Does this kit include the piston and gaskets? A: This specific item consists of the cylinder jug only. You will need to purchase a compatible 89mm piston kit and top-end gaskets separately.

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