Honda XR TRX 400 Top End Cylinder Kit

Honda XR400/TRX400 Top End Cylinder Kit

Restore the power and performance of your Honda XR400 or TRX400 with the 50 Caliber Racing Top End Cylinder Kit. Engineered to meet OEM specifications, this comprehensive kit provides everything you need for a complete top-end rebuild, ensuring your ride performs optimally for years to come. Save money and gain the satisfaction of a DIY rebuild with components designed for a direct bolt-on installation.

What’s in the Box

Why Riders Upgrade

Cylinder Kit vs. Stock or Generic Options

Common Questions

What Honda models does this kit fit?
This kit is designed to fit the Honda TRX400EX, TRX400X, and XR400R models from 1996 to 2015.

What components are included in the kit?
The kit includes a cylinder, piston, piston ring kit, circlips, wrist pin, base gasket, head gasket, case gasket, and a spark plug.

Does this kit require any modifications to install?
No, this kit is designed for a direct bolt-on installation and does not require any modifications.

What is the advantage of rebuilding the top end with this kit?
Rebuilding the top end with this kit restores lost power and performance, extends the life of your engine, and can be a significant cost saving compared to engine replacement.

What Riders Are Saying

This kit was exactly what I needed to bring my old TRX400X back to life. Everything fit perfectly and the instructions were clear. Great value for the money!
— John D., California

The quality of the parts is impressive for the price. My XR400 runs smoother and stronger than it has in years. Highly recommend 50 Caliber Racing.
— Sarah K., Texas