Winderosa is the industry leader in gasket manufacturing high performance
gaskets for Dirtbike, ATV, Snowmobile, PWC and Small Engines.

They make the most complete gasket sets on the planet.

Winderosa gaskets are made in the USA.

The first three numbers of the Winderosa Part Number Identifies the kit type:

710 PRO-FORMANCE GASKET SETS:  
These sets include the head, base, and upper end gaskets.
These sets are designed for piston replacement.
Gaskets and o-rings for power valve rebuild also included.

711 PROFESSIONAL GASKET SETS with OIL SEALS:
These sets include all gaskets, o-rings and oil seals necessary to rebuild the engine.

55 CRANKCASE OIL SEAL SETS:  
These sets contain crankshaft end seals and water pump seal.