Athena 58mm Big Bore Top End Piston Kit for Yamaha YZ125 (2022-2025)
This Athena 58mm big bore top end piston kit is listed for Yamaha YZ125 models from 2022 to 2025 and is intended for a 144cc big bore cylinder setup. Condition is new. It’s suited for riders replacing or upgrading a worn top end using an Athena big bore configuration. What’s included (cylinder, piston, rings, gaskets, and any related hardware) can vary by kit, so check the listing for details. Price shown is $926.96 USD, and shipping is free shipping.
| Location | Gilbert US |
| Shipping | Free shipping (check listing for details) |
| Seller |
azquadparts
99.9% positive · 31116 feedback
|
| Listing | FixedPrice · Active |
| Start time | 2025-04-10T19:24:13.000Z |
| Non-Domestic Product | No |
| Machine Type | Off-road Motorcycle |
| Items Included | Cylinder Barrel, Gasket Set, Piston Rings, Pistons, Wrist Pins |
| Custom Bundle | No |
| Manufacturer Part Number | P400485100101 |
| Superseded Part Number | B4X-11311-01-00, B4X-11111-00-00, B4X-11631-00-D0 |
| Vintage Part | No |
| Modified Item | No |
| Placement on Vehicle | upper |
| Brand | Athena |
| Engine Type | 2-Stroke |
| Type | Engine Rebuild Kit |
| Unit Type | Unit |
| Interchange Part Number | B4X-11311-01-00, B4X-11111-00-00, B4X-11631-00-D0 |
| Manufacturer Warranty | 1 Year |
| OE/OEM Part Number | B4X-11311-01-00, B4X-11111-00-00, B4X-11631-00-D0 |
| Surface Finish | Silver |
| Features | Corrosion-Resistant, Durable |
| Country/Region of Manufacture | Italy |
| Unit Quantity | 1 |
| Performance Part | Yes |
Athena 58mm 144cc Big Bore Cylinder Top End Kit!This is the best and most reliable big bore kit on the market!Fits Yamaha YZ125 2 Stroke Dirt Bikes Years 2022 2023 2024 2025Also Fits Yamaha YZ125X Years 2023 2024 2025This kit includes:58mm 144cc Nikasil Athena Big Bore CylinderAthena 58mm Coated Piston Kit (Includes, Piston, Pin, Rings & Clips)Power Valves PairAthena Complete Top End Gasket SetAthena HeadAthena Head Stud KitAll parts come with warranty.We ship worldwide & ship all domestic orders free!
