Namura NX-30025K3 Top End Kit for 1992-1993 Suzuki RM250, 66.94 mm Standard Bore

The Namura NX-30025K3 Top End Kit is a complete upper-engine solution for the 1992 and 1993 Suzuki RM250. Designed for standard-bore applications with a 66.94 mm piston, this kit includes the essential components needed to refresh the top end and support reliable engine performance. The kit contains a piston, piston rings, wrist pin, circlips, top-end bearing, and gasket kit for convenient installation.

Namura uses a hypereutectic casting process to provide increased silicon content, helping reduce expansion rates and improve wear resistance under elevated cylinder temperatures. The piston also features MOS2, or Teflon/molybdenum, coated skirts. This rolled-on coating process creates a strong bonded surface that helps reduce friction, improve heat transfer, and minimize the risk of cold seizures during operation.

Additional piston features include a machined smooth head and anodized dome. The smooth head helps reflect combustion heat and reduce carbon buildup, while the anodized dome improves heat resistance and durability. These design elements help protect the piston and support consistent performance in demanding two-stroke applications.

Manufacturer Part Number: NX-30025K3. Vendor Part Number: 185-30253. Brand: Namura. Fitment includes the 1992 Suzuki RM250 and 1993 Suzuki RM250. Verify the model year, cylinder configuration, and standard-bore requirements before ordering.

Features:

• Complete Top End Kit: Includes piston, rings, wrist pin, circlips, top-end bearing, and gasket kit
• Standard-Bore Fitment: Designed for a 66.94 mm piston application on select 1992-1993 Suzuki RM250 models
• MOS2-Coated Skirts: Rolled-on Teflon/molybdenum coating helps reduce friction, improve heat transfer, and minimize cold-seizure risk
• Machined Smooth Head: Helps reflect combustion heat and reduce carbon buildup on the piston crown
• Anodized Dome: Improves heat resistance and durability for demanding engine operation
• Hypereutectic Casting: Higher silicon content helps reduce expansion and increase wear resistance at elevated cylinder temperatures