The Yamaha 500 Top End Kit from SBT is a premium engine rebuild kit designed specifically for 1988–1992 Yamaha 500-powered personal watercraft. Compatible with the WaveRunner 500, WaveJammer, and WaveRunner VXR, this complete rebuild kit provides the essential components required to restore engine compression, performance, and long-term reliability.
The Yamaha 500 Top End Kit includes two precision-manufactured SBT pistons, two piston ring sets, wrist pins, C-clips, a base gasket, head and head cover gaskets with O-rings, and exhaust gasket(s). Every component is manufactured to strict quality standards, ensuring precise fitment, durability, and dependable performance in demanding marine environments.
Replacing worn pistons, rings, and sealing components helps restore lost compression, improve throttle response, reduce internal engine wear, and extend engine service life. The supplied head and head cover gasket set with O-rings ensures proper sealing during installation, while the exhaust gasket(s) complete the rebuild for a professional-quality repair.
Whether you’re restoring a classic Yamaha WaveRunner, repairing a worn engine, or performing preventative maintenance, the SBT Yamaha 500 Top End Kit delivers OEM-quality fitment and reliable performance trusted by marine technicians and personal watercraft enthusiasts worldwide.
Kit Includes
2 × SBT Pistons
2 × Piston Ring Sets
2 × Wrist Pins
2 × C-Clips
1 × Base Gasket
Head & Head Cover Gaskets with O-Rings
Exhaust Gasket(s)






