Description

Complete +.50mm Engine Rebuild Kit for 2021-2022 Kawasaki Ultra LX Jet Skis

Your cylinder measurements are complete, the machine work is finished, and now it’s time to put the engine back together with confidence. Designed for 2021-2022 Kawasaki Ultra LX Jet Ski models, this complete engine rebuild kit provides the major components needed for engines requiring +.50mm oversize piston kits while allowing you to reuse valves that remain within factory service limits.

The +.50mm designation applies only to the piston kits. By replacing the rotating assembly, bearings, timing components, and gaskets during one teardown, you can improve reliability, reduce future labor, and keep your rebuild moving toward completion.

What This Kit Includes

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

Why Choose This Kit?

This rebuild kit is ideal when your cylinders require the maximum oversize piston option but your existing valves can continue in service. It gives you the flexibility to replace the engine’s major wear components without paying for parts you don’t need.

• Install +.50mm piston kits after final cylinder measurements.
• Replace the crankshaft and connecting rods during one rebuild.
• Renew crankshaft bearings before final assembly.
• Replace the cam chain and oil pump chain while the engine is apart.
• Complete reassembly with a new complete gasket kit.

Compare Ultra LX Rebuild Options

If your cylinders remain within standard specifications, compare the Ultra LX Complete Engine Rebuild Kit (STD).

If your engine only requires the first oversize, review the Ultra LX Complete Engine Rebuild Kit +.25mm.

If your cylinder head also needs new intake and exhaust valves, step up to the Ultra LX Master Engine Rebuild Kit +.50mm.

If you’re still comparing rebuild levels, review our Engine Rebuild Kit Guide before ordering.

Finish Your Rebuild with REV6

Every REV6 engine rebuild kit includes a 1-year warranty and ships nationwide from our Utah facility. Review our Warranty Policy. Financing is available through REV6 Financing. If you have questions before ordering, Contact REV6. Our experienced team is ready to help you choose the right rebuild kit.