Engines and Components› Pistons and Piston Rings
Athena
Athena 14-16 Husqvarna TC 250 (w/KTM Engine) 66.34mm Bore Cast 2-Stroke Top End Piston Kit w/Gaskets
SKU: A0EF P4C0664045001A
Advanced — 4+ hours
Description
Part #: P4C0664045001A
Having two products in one kit that work perfectly together for an excellent result. Athena presents on the market the new Top End Piston Kit which includes a cast 2-stroke piston and the top end gasket kit. Athena studies, develops and tests internally all the technologies and materials of its pistons, while also engineering the entire development of compatible gaskets. After replacing a piston, this perfectly tuned kit offers very high performance and ensures maximum reliability.
MIA's Description
The piston features a smooth profile for uniform gas flow and efficient flame propagation, contributing to increased power output and smoother operation. Manufactured using advanced CNC machining, it maintains tight tolerances and consistent quality. The included piston rings provide a high seal with minimal friction, enhancing engine efficiency and response.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Athena |
| Part Number | A0EF P4C0664045001A |
Videos
NEW PRODUCT Athena Top End Piston Kit - 2T 4T 🆕
Top End Piston Kit: all you need in one kit! 🔥
The NEW Athena piston for KTM SX-F 350 cc dirt bikes 💥
What Is An Athena Big Bore Kit | YZ125 Build | What Comes In The Box
Cylinder Works Big Bore Cylinder Kit
🔥 ATHENA NEW EXTREME Big Bore Cylinder Kits for 250cc dirt bikes 🔥
KTM 300cc Big Bore Kit
What's New - Athena new off-road Piston line
How to Install a New Top End on a 2 Stroke Dirt Bike • YZ125 Rebuild Ep. 4 • WIN THIS BIKE!!
How To Choose the Correct Base Gasket for Sherco 2-Stroke Motorcycles
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy