Description

Keep Your Kawasaki Mule SX 4×4 XC Ready for Every Season

Whether your Mule SX XC is used around the farm, on hunting property, or for daily maintenance jobs, dependable engine performance makes every task easier. When wear begins to affect reliability, our Build Core rebuild service helps you get more life from the engine you already own.

After your rebuildable engine arrives at REV6, we inspect its condition, complete the required machining, assemble the engine with quality replacement components, and perform a final quality inspection before it ships back to you.

At a Glance

• Service: Build Core Engine Rebuild
• Fits: Kawasaki Mule SX 4×4 XC FJ400 (2016–2025)
• Core Required: Yes
• Warranty: 1-Year No-Fault Warranty Included
• Optional Coverage: 2-Year No-Fault Warranty Available
• Financing: Available
• Shipping: Nationwide with tracking information provided

Engine Service Details

• Complete inspection of the engine core
• Crankshaft and connecting rod inspection
• Cylinder bore machined and honed as needed
• New piston and piston rings
• Complete gasket kit
• New oil seals and valve guide seals
• Cylinder head service with valves ground and valve lash adjusted
• Final quality inspection before shipment

Getting Your Rebuild Started

A rebuildable Kawasaki Mule SX 4×4 XC FJ400 engine core is required before rebuilding can begin. Once we receive your engine, we’ll evaluate its condition, confirm the rebuild plan, and begin the restoration process.

If you’d like to discuss your engine before shipping it, Contact REV6. Our team is happy to answer questions and explain what to expect.

Warranty & Financing Information

Your rebuilt engine includes our 1-Year No-Fault Warranty. If you want additional coverage, you can upgrade to our optional 2-Year No-Fault Warranty.

For complete warranty information, visit our Warranty Policy. Financing options are available through our Financing page.

Repairing Instead of Rebuilding?

If you’re replacing individual engine components, browse our Kawasaki Mule parts and rebuild kits. You can also compare kit options with our Engine Rebuild Kit Guide.

Let’s Bring Your Engine Back to Work

When the time is right, send us your rebuildable engine core and we’ll return it rebuilt, inspected, and ready for installation.

We appreciate those who serve our country. Qualifying veterans and active-duty military personnel are eligible for exclusive REV6 discounts—ask our team for details.