LA Sleeve Moly2000 Cylinder Sleeve and Piston Kit for Yamaha (LAS-5378K)

The LA Sleeve LAS-5378K Sleeve and Piston Kit provides a complete top-end rebuild solution for compatible Yamaha applications. Designed to restore cylinder performance, the kit combines a Moly2000 centrifugally spun cast cylinder sleeve with a matched piston kit, wrist pin bearing, and complete top-end gasket set. This all-in-one configuration helps simplify the rebuilding process while supplying the core components needed for a reliable top-end refresh.
The Moly2000 cylinder sleeve features a cast iron bore engineered to promote improved ring sealing. Better ring seal can support stronger compression, increased torque, and improved horsepower when the cylinder is properly machined and assembled. The durable sleeve construction is intended for professional rebuilding applications where restoring the cylinder bore is preferred over replacing the complete cylinder assembly.
Kit contents: Cylinder sleeve, piston kit, wrist pin bearing, and complete top-end gasket set. The LA Sleeve LAS-5378K is intended for compatible Yamaha engines and should be selected according to the application and engine specifications. Cylinder sleeving requires precision machining and must be completed by a qualified dealer or professional machine shop. Proper installation, boring, honing, clearance measurement, and final assembly are essential for achieving the intended performance and service life.
Brand: LA Sleeve. Part number: LAS-5378K. This compatible top-end rebuild kit is a practical choice for professional technicians and experienced engine builders seeking a coordinated set of components for Yamaha cylinder restoration. Always verify vehicle fitment and follow the engine manufacturer’s service procedures before installation.

Features:

• Moly2000 centrifugally spun cast iron cylinder sleeve helps promote improved ring sealing

• Designed to support stronger compression, increased torque, and improved horsepower

• Complete top-end rebuild kit includes cylinder sleeve, piston kit, wrist pin bearing, and top-end gasket set

• Compatible with selected Yamaha applications

• Cylinder sleeving must be performed by a qualified dealer or professional machine shop

• Brand: LA Sleeve

• Part Number: LAS-5378K

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