Vertex Piston Kit for Kawasaki KX65 and Suzuki RM65 (22860B)

The Vertex 22860B Piston Kit is designed as a dependable OE replacement for Kawasaki KX65 and Suzuki RM65 two-stroke engines. This complete kit includes the piston, piston rings, wrist pin, and circlips, providing the essential components needed for a piston replacement while helping simplify installation and service. Its 44.45 mm piston diameter is engineered for compatible applications and supports proper fitment when matched to the specified engine configuration.
The piston is manufactured from gravity-cast aluminum alloy with an 18% silicone content, delivering a balance of strength, durability, and consistent performance for demanding riding conditions. Unlike a forged piston, this cast OE replacement design is produced to meet the requirements of the listed Kawasaki and Suzuki applications while maintaining reliable dimensional stability during operation.
A T-5 heat-treatment cycle hardens and tempers the piston for improved durability and resistance to operating stresses. The piston skirt also features a high-tech molybdenum disulfide coating, which helps promote faster break-in and supports extended piston life by reducing friction during initial operation. These design features make the Vertex 22860B a practical choice for engine maintenance, repair, or restoration.
For best results, verify the application, piston diameter, cylinder condition, ring end gap, and installation specifications before assembly. Use the included rings, wrist pin, and circlips according to the manufacturer’s service procedures. The Vertex 22860B Piston Kit is intended for compatible Kawasaki KX65 and Suzuki RM65 models and offers a complete replacement solution for restoring dependable engine performance.

Features:

• Application: Designed for compatible Kawasaki KX65 and Suzuki RM65 two-stroke engines

• Part Number: Vertex 22860B

• Piston Diameter: 44.45 mm

• Construction: Gravity-cast aluminum alloy with 18% silicone content

• Heat Treatment: T-5 hardening and tempering cycle for improved durability

• Skirt Coating: Molybdenum disulfide coating helps promote faster break-in and increased piston life

• Replacement Type: Cast OE replacement piston

• Kit Contents: Piston, piston rings, wrist pin, and circlips

Ships from Parts Unlimited.