Description

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

When your engine has been machined for +.50mm oversize pistons, using the correct rebuild components is essential for a reliable repair. Designed for 2021-2022 Kawasaki Ultra LX Jet Ski models, this engine rebuild kit combines the wear items most commonly replaced during an overhaul while also including new intake and exhaust valves.

The +.50mm designation applies only to the piston kits. By replacing the piston assembly, valve train components, bearings, timing components, and gaskets during one teardown, you can complete your rebuild with greater confidence and fewer unexpected parts orders.

What This Kit Includes

• 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

Built for Oversize Rebuilds with New Valves

This kit is a great choice when your crankshaft and connecting rods remain serviceable, but your rebuild also calls for new intake and exhaust valves. Replacing these critical wear components together helps simplify assembly and prepares your engine for dependable service.

• Install +.50mm piston kits after confirming final bore dimensions.
• Replace worn intake and exhaust valves during cylinder head service.
• Renew crankshaft bearings before engine assembly.
• Install a new cam chain and oil pump chain while the engine is apart.
• Complete the rebuild with a new complete gasket kit.

Compare Ultra LX Engine Rebuild Options

If your rebuild also requires a replacement crankshaft and connecting rods, compare the Ultra LX Complete Engine Rebuild Kit +.50mm.

If you need the complete rotating assembly along with new valves, upgrade to the Ultra LX Master Engine Rebuild Kit +.50mm.

If your cylinders only require the first oversize, review the Ultra LX Engine Rebuild Kit +.25mm.

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

Choose REV6 for Your Rebuild

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.