Description

Kawasaki MULE SX 4×4 FJ400 Engine 2016–2025

Your MULE SX needs to perform at its best, and REV6 delivers a precision rebuild that ensures it does. We include upgraded components and expert craftsmanship to bring your engine back to optimal power. Moreover, every rebuild comes with a 1-Year Warranty and free nationwide shipping—so you can rely on consistent performance, hassle-free.

What the Rebuild Includes

• Full Core Inspection – We inspect each core before beginning the rebuild to confirm it’s serviceable.
• Crankshaft & Rod Assessment – Ensures internal components can handle load and stress.
• Cylinder Bore Service – We true, straighten, and crosshatch for accurate sealing and fit.
• New Pistons & Rings – Restores compression, smooth operation, and performance.
• Complete Gasket Kit – Exchanges all critical seals for leak-free reliability.
• New Oil Seals – Protects against leaks and keeps lubrication intact.
• Valve Guide Seals – Controls oil usage and reduces wear.
• Valve & Head Service – Grind valves and set lash to precise specs for smooth operation.

Core Requirement

Please remember: a rebuildable core is required to complete your order. If you don’t have one ready, a refundable core charge applies until we receive your core. Ensuring the core arrives in good condition helps us work faster and deliver more reliably.

Why REV6 Stands Out

Our technicians hand-assemble every engine and perform a second-quality review to ensure flawless performance. As a result, your rebuilt engine surpasses standard OEM replacements in durability. For more on shipping or warranty details, visit our FAQ or Help Center.

Ready for the Road

Don’t wait—order your Kawasaki MULE SX 4×4 FJ400 rebuild today for reliable service, backed by warranty and inclusive shipping. Explore your options via our Engine Rebuild Kit Guide or Contact Us for personalized assistance.

Thank you for trusting REV6—your engine deserves the best, and we’re proud to keep your ride running strong mile after mile.