Description
Kawasaki Jet Ski STX-12F Complete Bottom End Refresh Kit
Refresh the lower end of your Kawasaki Jet Ski STX-12F engine with this Complete Bottom End Refresh Kit for applicable 2003–2007 models. This kit focuses on common wear components replaced during preventative maintenance and bottom-end service while allowing reuse of major rotating components that remain within specification.
If your crankshaft assembly is still serviceable, a refresh kit can help restore reliability while replacing key bearings, timing components, and sealing surfaces.
This Kit Includes
- Complete Gasket Kit
- Oil Pump Chain
- Cam Chain
- Crankshaft Ball Bearing
- Crankshaft Outer Bearings
- Crankshaft Inner Bearings
- Crankshaft Center Bearings
- Connecting Rod Bearings
Fitment
- Kawasaki Jet Ski STX-12F
- Applicable 2003–2007 models
Why Choose a Bottom End Refresh?
Bearings, chains, and sealing components wear over time from heat cycles, RPM, and normal riding conditions. As a result, engines may begin showing vibration, internal noise, reduced efficiency, or early signs of lower-end wear.
Refreshing these service items while the engine is apart helps support smoother operation and may reduce future repair costs.
Need a More Complete Repair?
If your crankshaft and rotating assembly require replacement, step up to our Kawasaki STX-12F Complete Bottom End Rebuild Kit.
Looking for additional support parts? You may also want:
If you’re comparing 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.
Need flexibility on a larger rebuild? Explore our financing options. For technical articles and rebuild information, visit the REV6 Blog.
Take Action
Order your Kawasaki Jet Ski STX-12F Complete Bottom End Refresh Kit today and keep your rebuild moving with confidence. With nationwide shipping, REV6 support, and a 1-year warranty, you’re ready to get back on the water.













