Description

Rebuild Your Kawasaki Ultra LX with a +.50mm Master Engine Kit

When cylinder measurements call for +.50mm oversize pistons, you’re already committed to doing the rebuild correctly. This master engine rebuild kit is designed for 2007-2011 Kawasaki Ultra LX Jet Ski models and brings together the major components typically replaced during a complete engine overhaul.

The +.50mm designation applies to the piston kits only. By choosing one complete kit, you can spend less time sourcing individual parts and more time focusing on a quality rebuild. In addition, replacing major wear components during the same teardown helps reduce repeat labor later.

What This Kit Includes

• Crankshaft
• Connecting Rods
• Piston Kits +.50mm
• Complete Gasket Kit
• Oil Pump Chain
• Intake/Exhaust Valves
• Cam Chain
• Crankshaft Ball Bearing
• Crankshaft Outer Bearings
• Crankshaft Bearing Inner Bearings
• Crankshaft Main Bearing
• Connecting Rod Bearings

Why Choose This Kit?

If your engine needs the maximum oversize piston option, this kit helps you rebuild with confidence by combining the primary rotating assembly, valve train, bearings, timing components, and gaskets into one purchase.

• Use +.50mm piston kits after cylinder machining confirms the correct bore size.
• Replace worn crankshaft and connecting rods during the same teardown.
• Refresh the valve train before the cylinder head is reassembled.
• Install new bearings, timing components, and gaskets throughout the rebuild.
• Complete the engine rebuild with components designed to work together.

Compare Ultra LX Engine Rebuild Kits

If your cylinders clean up at standard bore, compare the Ultra LX Master Engine Rebuild Kit (STD).

If +.25mm piston kits match your cylinder measurements, review the Ultra LX Master Engine Rebuild Kit +.25mm.

If your existing valves remain within specification, the Ultra LX Complete Engine Rebuild Kit +.50mm may be a better fit.

Need help choosing the right rebuild level? Review our Engine Rebuild Kit Guide before ordering.

Build with Confidence

Every REV6 engine rebuild kit includes a 1-year warranty and ships nationwide from our Utah facility. Review our Warranty Policy. Financing options are available through REV6 Financing. If you have questions about piston sizing or rebuild planning, Contact REV6. Our experienced team is ready to help you select the right kit for your build.