ATHENA P5F0780078001A Top End Piston Kit for KTM and Husqvarna 250 EXC-F/FE 2017–2019

Breathe new life into your 4-stroke enduro engine with Athena's Forged Top End Piston Kit. Engineered for riders who demand championship-level performance and unwavering reliability, this complete rebuild kit pairs a precision-forged piston with Athena's premium top-end gasket kit for an easy installation and race-ready durability. Manufactured using a reverse extrusion forging process and precision CNC machining, the piston delivers exceptional strength, superior heat resistance, and responsive power, while premium Japanese piston rings and Athena's advanced gasket technology provide outstanding sealing under the toughest riding conditions.

• Complete top-end rebuild kit featuring a forged 4-stroke piston and premium gasket set
• Reverse-extruded forged aluminum piston for maximum strength and long-lasting durability
• Precision CNC-machined for OEM-quality fit and consistent performance
• Premium Japanese piston rings with wear-resistant coatings reduce friction and maximize engine life
• Optimized piston design promotes efficient combustion and crisp throttle response
• Advanced gasket materials provide dependable, leak-free sealing for demanding enduro applications

Includes:

• Forged 4-Stroke Piston
• Piston Rings (2)
• Piston Pin / Wrist Pin
• Circlips
• Complete Top End Gasket Kit

• Piston Size: 77.95mm
• Displacement: 250cc
• Compression: 13.9:1
• Piston Type: Forged
• Compression Height: 19.40mm
• Piston Pin: Biconical
• Big End Pin Diameter: 16 x 9 x 38.2mm

The ATHENA P5F0780078001A Top End Piston Kit is designed for specified KTM and Husqvarna 250 EXC-F and FE applications from 2017 through 2019. It provides a replacement piston kit for the top end of the engine.

Identified by part number P5F0780078001A, this kit is listed for the KTM 250 EXC-F and Husqvarna 250 FE model lines within the stated model years. Verify the vehicle application and required service components before installation.

This product is supplied as one unit and is branded ATHENA. Refer to the manufacturer’s service information for installation procedures and any additional parts or inspections required during top-end service.

Features:

• Brand: ATHENA
• Part Number: P5F0780078001A
• Product Type: Top end piston kit
• Application: KTM 250 EXC-F, 2017–2019
• Application: Husqvarna 250 FE, 2017–2019
• Unit of Measure: Each