Description

Kawasaki Ultra LX Jet Ski +.50mm Master Engine Rebuild Kit

When cylinder measurements confirm the need for +.50mm oversize pistons, it’s time to rebuild the engine with components you can trust. This master engine rebuild kit fits 2012-2020 Kawasaki Ultra LX Jet Ski models and combines the major wear components needed for a complete engine overhaul into one convenient kit.

The +.50mm designation applies to the piston kits only. Once the engine is apart, replacing the rotating assembly, valve train, bearings, timing components, and gaskets during the same teardown can save time and help reduce the chance of future repairs.

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 a Master Rebuild Kit?

If you’re already investing in machine work, completing the rebuild with one coordinated kit makes good sense. Instead of ordering individual components from multiple suppliers, you receive the major parts commonly replaced during a complete engine rebuild.

• Install +.50mm piston kits after cylinder machining confirms the correct oversize.
• Replace the crankshaft and connecting rods during the same teardown.
• Renew the cylinder head with new intake and exhaust valves.
• Replace timing components before final assembly.
• Complete the rebuild with new bearings and sealing components.

Compare Ultra LX Rebuild Options

If your cylinders remain within the standard bore specification, compare the Ultra LX Master Engine Rebuild Kit (STD).

If cylinder measurements support the next oversize instead, review the Ultra LX Master Engine Rebuild Kit +.25mm.

If your existing valves can be reused, the Ultra LX Complete Engine Rebuild Kit +.50mm may be a better fit for your project.

Still deciding which rebuild kit matches your inspection results? Review our Engine Rebuild Kit Guide before ordering.

Support from the REV6 Team

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 need help confirming piston size or selecting the correct rebuild kit, Contact REV6. Our team is ready to help you order with confidence.