Vertex Piston Kit for KTM 250 EXC/SX, 67.45 mm (22459B)

The Vertex 22459B Piston Kit is designed as a cast original-equipment replacement for KTM 250 EXC and SX applications. Manufactured from gravity-cast aluminum alloy with an 18% silicone content, this piston provides a dependable replacement solution for engines requiring consistent fit, performance, and durability. The kit is engineered for straightforward installation and includes the essential components needed to refresh the piston assembly.
The piston is heat treated using a T-5 hardening and tempering cycle to help improve strength and service life under demanding operating conditions. Its skirt features a high-tech molybdenum disulfide coating that promotes faster break-in and reduces friction during initial operation. This coating also helps support increased piston life by improving surface protection where the piston skirt contacts the cylinder wall.
This Vertex piston kit includes the piston, piston rings, wrist pin, and circlips, providing a complete replacement package for applicable KTM 250 EXC and SX engines. The 67.45 mm piston size is specified for compatible applications, while the cast construction maintains the characteristics expected from an OE-style replacement component. Verify engine year, model, and fitment before installation to ensure compatibility with your motorcycle.
Feature: Vertex 22459B cast OE replacement piston
Feature: Designed for KTM 250 EXC and SX applications
Feature: Gravity-cast aluminum alloy construction with 18% silicone content
Feature: T-5 heat-treated for improved strength and durability
Feature: Molybdenum disulfide-coated piston skirt for faster break-in
Feature: Kit includes piston, rings, wrist pin, and circlips

Features:

• Vertex 22459B cast OE replacement piston

• Designed for KTM 250 EXC and SX applications

• Gravity-cast aluminum alloy construction with 18% silicone content

• T-5 heat-treated for improved strength and durability

• Molybdenum disulfide-coated piston skirt for faster break-in

• Includes piston, rings, wrist pin, and circlips

Ships from Parts Unlimited.