Piston Ring of Perkins series , (Dia from 91.491mm-137.17mm):

Part number :

UPRK0003,UPRK0002, 4181A009, 4181A027, 4181A019, 4181A021, 4181A026, 41158017, 41158022, 41158029, 41158041, 41158044, 41158057, 41158005, 68501etc.

Remark:
1)For European& American, Korean & Japanese etc. 
2)Good quality
3)Competitive price
4)Secure service
5)Products: Piston, piston ring, engine bearing, cylinder liner,auto parts, engine parts.
6)We can develop new items for you especially.