The Sea-Doo 657 Top End Kit from SBT is a premium engine rebuild kit designed for 1993–1995 Sea-Doo 657 and 657X engines. Engineered for Sea-Doo XP, GTX, and SPX models, this complete kit includes all the essential components required to restore engine performance, compression, and long-term reliability.
Whether you’re rebuilding an engine after years of service or carrying out preventative maintenance, the Sea-Doo 657 Top End Kit provides precision-manufactured components designed for excellent fitment and durability. Replacing worn pistons, piston rings, bearings, and gaskets together helps restore compression, improve throttle response, minimise engine wear, and maximise engine life.
Manufactured by SBT, this rebuild kit is trusted by marine technicians and personal watercraft enthusiasts for its consistent quality and reliable performance. The supplied water jacket O-ring set ensures proper cooling system sealing, while the included exhaust gasket(s) and base gasket complete the top-end rebuild with everything needed for a professional installation.
Ideal for workshops and DIY rebuilders alike, the SBT Sea-Doo 657 Top End Kit offers OEM-quality fitment and dependable performance, making it an excellent choice for restoring your classic Sea-Doo to peak operating condition.
Kit Includes
2 × SBT Pistons
2 × Piston Ring Sets
2 × Wrist Pins
2 × Wrist-Pin Bearings
2 × C-Clips
1 × Base Gasket
1 × Water Jacket O-Ring Set
Exhaust Gasket(s)
