Earn Skoutley Cash with every Purchase $$

Your Premier Off-Road Superstore!

Over 25,000+ UTV Parts & Accessories

Confidence you can trust on every order

Quick U.S.-Based Fulfillment

👉 Ships fast from trusted U.S. suppliers

Secure Checkout & Payments

👉 Safe, secure checkout with trusted payment options

Built for the Community

👉 Supporting riders on and off the trail

SKU: 4449A13

Honda TRX XR400R 440cc Big Bore Kit

Regular price $59.49 USD
Sale price $59.49 USD Regular price $69.99 USD
Sale Sold out
Unit price
/per 
Shipping calculated at checkout.
Pay in 4 interest-free payments with Afterpay Ships from trusted U.S. suppliers
This is a pre order item. We will ship it when it comes in stock.

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)

Black t-shirt with 'Skoutley Off-Road' graphic and website text on a white background

Rep the Ride

Shop Apparel