WSM Complete Top End Kit for Yamaha GP 1200, XL 1200, and SUV 1200 Models - 84.25 mm Bore

Complete Top End Kits Include: Pistons, Rings, Wrist Pins, Circlips, Top End Bearings, Head, Base, Common Intake and Exhaust Gaskets required for rebuilding the top end of the motor

The WSM Complete Top End Kit (Part Number 010-826-21) is designed for precise engine rebuilds on select Yamaha watercraft models including the GP 1200, XL 1200, and SUV 1200 from years 1997 to 1999. This comprehensive kit includes pistons, rings, wrist pins, circlips, top end bearings, and all necessary gaskets such as head, base, intake, and exhaust, providing everything needed for a thorough top-end overhaul. Crafted for durability and performance, the pistons feature high-strength hardened aluminum construction to prevent skirt and ring groove breakage, ensuring longevity under demanding conditions. The pistons’ walls are coated with a nonabrasive treatment that reduces heat and friction, translating to increased horsepower and extended piston life. All components are manufactured to exact OEM specifications to guarantee a perfect fit and reliable operation. Whether you're restoring a classic Yamaha watercraft or performing routine maintenance, this kit offers a trusted solution backed by WSM’s reputation for quality. Engineered specifically for the 84.25 mm bore size, it ensures compatibility and optimal performance across multiple Yamaha models from the late 1990s. Installing this top end kit will restore your engine’s power, improve efficiency, and prolong the lifespan of critical components, making it an essential upgrade for watercraft enthusiasts and professional mechanics alike.

Features:

• High-strength hardened aluminum pistons designed to prevent skirt and ring groove breakage

• Nonabrasive coating on piston walls reduces heat and friction for enhanced horsepower and piston longevity

• Manufactured to exact OEM specifications for precise fit and reliable performance

Product Type: Piston kits & Components
Bore Size: 84.25 mm
Segment: Watercraft
Division: Engine
Class: Piston Kits & Components
Sub Class: Top End Kits

FITMENT:
1997 Yamaha GP 1200 (GP1200)
1998 Yamaha GP 1200 (GP1200)
1998 Yamaha XL 1200 (XA1200)
1999 Yamaha GP 1200 (GP1200)
1999 Yamaha SUV 1200 (SV1200)
1999 Yamaha XL 1200 (XA1200)
1999 Yamaha XL 1200 LTD (XA1200)