WISECO REPLACEMENT RING SET.
*  XA type sets consist of Top Ring, Compression Ring, and Oil Ring.
*  Top Ring: Chrome-faced high temperature steel alloy.
*  Compression Ring: Taper-faced ferrox coated ductile iron.
*  Oil Ring: 3-piece low tension oil ring.
*  The ring type and bore size (in mm) is stamped on the dome of the piston.
*  Refer to this information to order the correct replacement rings.
*  Ring styles cannot be interchanged.
*  Please note: Only WISECO replacement ring sets may be used on WISECO pistons.