The Athena Forged Dome Piston Kit is engineered for reliable high-performance service in select Yamaha YZ125 two-stroke applications. This kit features a 53.95 mm forged piston with a 14.3:1 compression ratio and a dome-style crown designed to support efficient combustion and strong engine performance. Athena manufactures precision engine components for powersports applications, helping provide dependable fit, durability, and consistent operation.
This piston kit fits 2001, 2002, 2003, and 2004 Yamaha YZ125 models. Verify the existing bore, piston clearance, and engine specifications before installation to ensure the correct replacement size and compatibility. The kit is identified by Athena manufacturer part number S410485302007.B and vendor part number 68-4872B.
Designed as a replacement or performance-oriented service component, the Athena forged construction provides strength for demanding motocross and off-road riding conditions. Proper installation should include inspection of the cylinder, piston pin, circlips, rings, and related top-end components, along with assembly according to Yamaha service procedures and the piston manufacturer’s recommendations.
Features:
- Brand: Athena
- Product Type: Forged dome piston kit
- Piston Size: 53.95 mm
- Compression Ratio: 14.3:1
- Application: Yamaha YZ125
- Fitment: 2001, 2002, 2003, and 2004 Yamaha YZ125
- Manufacturer Part Number: S410485302007.B
- Vendor Part Number: 68-4872B
- Construction: Forged piston design for demanding two-stroke applications
Fitment:
2001 Yamaha YZ125
2002 Yamaha YZ125
2003 Yamaha YZ125
2004 Yamaha YZ125