ATHENA P4C0664083001A Top End Piston Kit for KTM 250 SX 2017–2022

Breathe new life into your 250cc 2-stroke enduro machine with this ultimate, all-in-one top-end rebuild kit. Athena has perfectly paired a premium, gravity-cast high-silicon aluminum piston with their industry-leading top-end gaskets for a seamless and highly reliable rebuild. The precision CNC-machined piston ensures flawless fuel flow and optimal flame propagation, while a specialized molybdenum disulfide skirt coating greatly reduces internal friction for enhanced power and longevity. Accompanied by gaskets that have undergone advanced stress-relieving processes and proprietary surface treatments, this kit guarantees an unbeatable seal under extreme cylinder pressures. Reclaim your factory compression and hit the trails with maximum performance!

• Complete top-end solution perfectly pairing a cast 2-stroke piston and comprehensive gasket kit

• Gravity-cast from a specialized high-silicon aluminum alloy for exceptional strength and heat resistance

• Molybdenum disulfide skirt coating drastically reduces friction and internal engine wear

• Precision CNC-machined profile ensures optimal fuel flow and perfect flame propagation

• Advanced gaskets feature proprietary surface treatments and stress-relieving processes for maximum sealing reliability

Includes:

• Cast 2-Stroke Piston (Domed Head)

• Piston Rings (2)

• Standard Piston Pin / Wrist Pin

• Circlips

• Needle Bearing

• Complete Top End Gasket Kit

• Displacement: 250cc (Enduro)

• Piston Size: 66.34mm

• Pin Dimensions: 18 x 13 x 56mm

• Compression Height: 38.10mm

• Compression: Standard

The ATHENA P4C0664083001A Top End Piston Kit is designed for the KTM 250 SX model years 2017 through 2022. This product is identified as a top-end piston kit for the specified motorcycle application.

Manufactured by ATHENA, this kit provides a replacement component for top-end service on compatible KTM 250 SX motorcycles within the stated model-year range. Verify the application and part number before ordering to help ensure the product matches your service requirements.

Sold as one unit, the kit is listed under part number P4C0664083001A. Use the manufacturer and part number when comparing replacement components or preparing for maintenance.

Features:

• Brand: ATHENA
• Part Number: P4C0664083001A
• Product Type: Top end piston kit
• Vehicle Application: KTM 250 SX
• Model Years: 2017–2022
• Unit of Measure: Each