Honda TRX400 XR400 440cc Big Bore Kit

50 Caliber Racing Honda XR400 / TRX400EX 89mm 440cc Big Bore Kit (1996-2016)

Bolt on 89mm 440cc big bore kit for all Honda TRX400EX and XR400 models. This is a complete kit, with everything you need. Improved cylinder design with a larger cylinder sleeve for longer lasting performance. 10:1 89mm Piston with hard anodized dome. This kit is truly bolt on and can be installed by anyone with basic mechanical skills who is not afraid to turn some nuts and bolts. Breathe new life into your Honda with our high quality, affordable and reliable big bore kit!

Includes:
- 89mm Cylinder
- 10:1 Piston with Anodized Dome
- Piston Ring Kit
- Gasket Kit
- Wrist Pin
- Circlips
- O-Rings

Fits the following Honda models:
- TRX400EX (1996-2016)
- TRX400X (1996-2016)
- XR400 (1996-2003)