Part & Accessories

Please contact us for any out of stock items. We have many options to order these products and ship them to you to get you back OFFROAD! 385-506-5883 or ride@jkloffroad.com.

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50 Caliber Racing

Honda TRX XR400R 440cc Big Bore Kit

Name: Honda TRX XR400R 440cc Big Bore Kit
Brand: 50 Caliber Racing
SKU: 4449A13
Price: 69.99 USD
Availability: InStock

$69.99 USD

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⚠️ Confirm fitment before you orderParts vary by year, make, and model. Not sure it fits your machine? Our techs will check for you — call or text 385-506-5883.

Honda XR400R / 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)
XR400R (1996-2003)

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