Developed using the latest technologies and highest quality materials, these Cosworth YBG/YBM piston ring packs are engineered to meet the demands of modern high performance engines. As a result, they are ideal for higher power output, improved sealing, lower friction and longer life.
These ring packs are designed for use with Cosworth standard bore pistons PA1314 (YBG) and PA1249 (YBM) and each pack contains 4 x top rings, 4 x 2nd rings and 4 x oil control rings.
- Bore size = 90.82 mm
- Top ring = 1.00 mm thickness
- 2nd ring = 1.75 mm thickness
- Oil Control Ring = 3.00 mm thickness
We also stock other types of genuine Cosworth YB piston ring options, so if you are after other rings then please get in touch.