Vertex Piston Kit 66.35 mm for Suzuki RM250 (S4C05800003B)

Upgrade the top-end performance and reliability of your Suzuki RM250 with the Vertex Piston Kit, Part Number S4C05800003B. Designed as a cast original-equipment replacement piston, this kit provides a dependable fit and durable performance for engine rebuilding and routine maintenance. The piston is manufactured from gravity-cast aluminum alloy with an 18% silicone content, offering the material characteristics needed for demanding two-stroke applications.
The piston undergoes a T-5 heat-treatment hardening and tempering cycle to help improve strength, durability, and resistance to operating stresses. Its skirt features a high-tech molybdenum disulfide coating that helps reduce friction during initial operation, promotes faster break-in, and contributes to extended piston life. This coating is especially beneficial when restoring engine performance after a piston replacement or top-end service.
The Vertex S4C05800003B kit includes the essential components needed for installation: one piston, piston rings, a wrist pin, and circlips. The 66.35 mm piston size is engineered for compatible Suzuki RM250 applications, but fitment should be verified against the motorcycle model year, cylinder specifications, and manufacturer service requirements before installation. Proper assembly, clearance checks, lubrication, and break-in procedures are recommended for the best results.
Features include a cast OE replacement design, heat-treated aluminum construction, and a friction-reducing piston skirt coating. With its complete component package and application-focused engineering, the Vertex Piston Kit offers a practical solution for maintaining consistent engine operation and renewing the top-end of a compatible Suzuki RM250.

Features:

• Brand: Vertex

• Part Number: S4C05800003B

• Application: Compatible with Suzuki RM250 models

• Piston Size: 66.35 mm

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

• Heat Treatment: T-5 hardening and tempering cycle

• Skirt Coating: Molybdenum disulfide coating for faster break-in and reduced friction

• Design: Cast original-equipment replacement piston

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

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