Kawasaki 2003-2007 STX-12F Jet Ski Complete Bottom End Rebuild Kit
$2,499.00
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Complete bottom end rebuild kit for Kawasaki Jet Ski STX-12F models. Includes crankshaft, rods, bearings, chains, and gaskets. Ships nationwide with a 1-year warranty.
Description
Kawasaki Jet Ski STX-12F Complete Bottom End Rebuild Kit
Restore the foundation of your Kawasaki Jet Ski STX-12F engine with this Complete Bottom End Rebuild Kit for applicable 2003–2007 models. This kit combines major rotating assembly components, timing components, bearings, and sealing parts commonly replaced during a full bottom-end rebuild.
Because the bottom end handles continuous load, RPM, and heat, replacing worn components together helps support smoother operation and long-term reliability on the water.
This Kit Includes
- Crankshaft
- Complete Gasket Kit
- Oil Pump Chain
- Connecting Rods
- 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 Rebuild the Bottom End?
The bottom end supports the crankshaft, rods, bearings, and rotating assembly that keep your engine operating correctly. Over time, heat cycles and normal wear can lead to vibration, internal noise, reduced performance, or larger failures.
Replacing these major components during service helps protect your rebuild and supports dependable performance season after season.
Need a Different Rebuild Level?
If your crankshaft and rotating assembly components remain within specification, consider our Kawasaki STX-12F Complete Bottom End Refresh Kit.
Looking for additional support parts? You may also want:
If you’re comparing rebuild paths, 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 Complete Bottom End Rebuild Kit today and rebuild with confidence. With nationwide shipping, REV6 support, and a 1-year warranty, you can get back on the water with confidence.
