74mm Big Bore Cylinder Piston Top End Kit Fits For Honda TRX250EX 2001-2008 New

74mm Big Bore Cylinder Piston Top End Kit for Honda

This 74mm big bore cylinder piston top end kit delivers the piston, cylinder, and gasket components needed to rebuild the upper end of a Honda TRX250EX engine for renewed compression and power.

Overview

This 74mm big bore cylinder piston top end kit provides the core components to refresh the top end of a Honda TRX250EX engine. The big bore cylinder piston top end kit pairs a 74mm cylinder with a matching piston so displacement and compression are restored after wear. It suits riders and mechanics handling a top end rebuild on a TRX250EX.

Built For Performance

• 74mm bore size for increased displacement over stock
• Matching piston sized to the 74mm cylinder for a consistent fit
• Top end gasket set included for a complete rebuild
• Cast cylinder construction for reliable heat dissipation
• Designed as a direct replacement for the original top end components

Fits These Machines

• for Honda TRX250EX 2001
• for Honda TRX250EX 2002
• for Honda TRX250EX 2003
• for Honda TRX250EX 2004
• for Honda TRX250EX 2005
• for Honda TRX250EX 2006
• for Honda TRX250EX 2007
• for Honda TRX250EX 2008

On-The-Job Use

• Top end rebuilds after loss of compression
• Restoring power on a worn TRX250EX engine
• Routine maintenance on older sport ATVs
• Rebuild projects on 2001 to 2008 TRX250EX machines

Specs At A Glance

Good To Know

Q: Does this kit include the gaskets needed for the rebuild? A: The kit is listed as a top end kit with cylinder, piston, and gasket components, though you should confirm the exact contents with the seller before ordering. A: Verify the included gasket set covers the surfaces you plan to reseal.

Q: Will a 74mm big bore require jetting changes? A: A larger bore can change fuel and air demand, so carburetor jetting may need adjustment after installation. Check your machine's setup and tune accordingly.

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