Description

Engine Rebuild Kit +.50mm for 2012-2020 Kawasaki Ultra LX Jet Skis

When your engine has been machined for +.50mm oversize pistons, the next step is choosing components that match your rebuild plan. Designed for 2012-2020 Kawasaki Ultra LX Jet Ski models, this engine rebuild kit includes the wear items most commonly replaced while allowing you to continue using serviceable crankshaft, connecting rod, and valve components.

The +.50mm designation applies only to the piston kits. Replacing the bearings, timing components, and gaskets during one teardown helps simplify assembly and prepares the engine for dependable service once the rebuild is complete.

What This Kit Includes

• 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

Ideal for Rebuilds with Reusable Parts

If your inspection confirms the crankshaft, connecting rods, and valves remain within specification, this kit provides an economical way to replace the components that normally experience wear. It keeps your rebuild focused while eliminating unnecessary replacement parts.

• Install +.50mm piston kits after confirming final bore dimensions.
• Replace crankshaft bearings before engine assembly.
• Renew the oil pump chain and cam chain during the rebuild.
• Install a new complete gasket kit for reliable sealing.
• Reuse serviceable crankshaft, connecting rods, and valves after inspection.

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 your cylinder head requires new intake and exhaust 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.

Need help selecting the right rebuild kit? Review our Engine Rebuild Kit Guide.

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 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.