The Athena P400270100021 Cylinder Kit is a performance-focused 82 mm big bore replacement designed for select Husqvarna and KTM 250 four-stroke motocross and cross-country motorcycles. The kit increases engine displacement while maintaining a 13.8:1 compression ratio, providing a direct solution for riders and technicians seeking a reliable cylinder upgrade for compatible applications.
Manufactured by Athena, this cylinder kit is engineered for precise fitment and dependable service in demanding riding conditions. Its application-specific design supports proper installation with the original engine architecture, making it suitable for professional repairs, engine rebuilding, and performance-oriented upgrades. Verify the motorcycle model, year, and required supporting components before installation.
Fitment: Fits 2016-2019 Husqvarna FC 250 models, including 2016-2019 applications as listed by the manufacturer; fits 2016-2018 KTM 250 SX-F models; and fits 2016-2017 KTM 250 XC-F models. The exact fitment includes 2016 Husqvarna FC 250, 2017 Husqvarna FC 250, 2018 Husqvarna FC 250, 2019 Husqvarna FC 250, 2016 KTM 250 SX-F, 2017 KTM 250 SX-F, 2018 KTM 250 SX-F, 2016 KTM 250 XC-F, 2017 KTM 250 XC-F, and 2018 KTM 250 XC-F motorcycles.
This Athena cylinder kit is identified by manufacturer part number P400270100021 and vendor part number P400270100021. It is intended for installation by a qualified technician using the appropriate service procedures, torque specifications, and related engine components.
Features:
- Brand: Athena
- Manufacturer Part Number: P400270100021
- Vendor Part Number: P400270100021
- Cylinder Type: 82 mm big bore cylinder kit
- Compression Ratio: 13.8:1
- Application: Select Husqvarna FC 250 and KTM 250 SX-F and 250 XC-F models
- Fitment: 2016-2019 Husqvarna FC 250; 2016-2018 KTM 250 SX-F; 2016-2017 KTM 250 XC-F
- Use: Engine rebuilding, replacement, and performance-oriented upgrades
Fitment:
2016 Husqvarna FC 250
2016 KTM 250 SX-F
2016 KTM 250 XC-F
2017 Husqvarna FC 250
2017 KTM 250 SX-F
2017 KTM 250 XC-F
2018 Husqvarna FC 250
2018 KTM 250 SX-F
2018 KTM 250 XC-F
2019 Husqvarna FC 250
2019 KTM 250 SX-F
2019 KTM 250 XC-F
2020 Husqvarna FC 250
2020 KTM 250 SX-F
2020 KTM 250 XC-F
2021 Gas-Gas EX 250F
2021 Gas-Gas MC 250F
2021 Husqvarna FC 250
2021 KTM 250 SX-F
2021 KTM 250 XC-F
2022 Gas-Gas EX 250F
2022 Gas-Gas MC 250F
2022 Husqvarna FC 250
2022 KTM 250 SX-F
2022 KTM 250 XC-F
2023 Gas-Gas EX 250F