Description

Kawasaki Jet Ski STX-12F Crank Bearing Kit

Restore rotating assembly support and help protect long-term engine reliability with this Crank Bearing Kit for applicable 2003–2007 Kawasaki Jet Ski STX-12F models. Crankshaft bearings play a critical role in maintaining alignment, reducing friction, and supporting smooth engine operation.

Because crank bearings operate under constant RPM, load, and heat cycles, replacing worn components during service helps support a stronger rebuild and more dependable performance on the water.

This Kit Includes

• Crankshaft Outer Bearings
• Crankshaft Inner Bearings
• Crankshaft Center Bearings

Fitment

• Kawasaki Jet Ski STX-12F
• Applicable 2003–2007 models

Why Replace Crank Bearings?

Crankshaft bearings support the engine’s rotating assembly and help maintain proper internal clearances. Over time, wear can lead to vibration, noise, reduced efficiency, or premature component failure.

Replacing bearings while the engine is apart helps protect the crankshaft and supports smoother engine operation.

Building Out Your Bottom-End Service?

If your rebuild also includes sealing components, pair this with the Kawasaki STX-12F Complete Bearing & Seal Kit.

Need additional lower-end coverage? You may also want:

• Complete Oil Seal Set
• Complete Bottom End Refresh Kit
• Complete Bottom End Rebuild Kit

If you’re deciding between rebuild levels, review our Engine Rebuild Kit Guide.

Support & Resources

Need help confirming fitment? Visit Contact REV6. You can also review our Warranty Policy, browse the FAQ, or visit the Help Center.

For larger rebuild projects, explore our financing options. For technical articles and rebuild information, visit the REV6 Blog.

Take Action

Order your Kawasaki Jet Ski STX-12F Crank Bearing Kit today and refresh critical rotating components with confidence. With nationwide shipping, REV6 support, and a 1-year warranty, your rebuild stays moving.