WISECO REPLACEMENT RING SET.
ZV type sets consist of Top Ring and Oil Ring.
Top Ring: Alloy steel, gas intrided flat faced.
Oil Ring: 3-piece oil assembly; Stainless steel flex-vent spacer, chrome faced rails.
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.