Hastings 3.125" Bore +.030" Over Size, 4-Cylinder Ring Set with 3/32" Top Ring, 3/32" Second Ring and a First Oil Ring is 3/16".
This Hastings 4-Cylinder Ring Set does not specify Ring Material or Ring Surface Treatment

Application Summary:

Year Make/Model
1960-1966 Jeep CJ3
1960-1973 Jeep CJ5
1960-1971 Jeep CJ6
1966-1973 Jeep Commando
1961-1969 Jeep Dispatcher
1960-1966 Jeep DJ3
1965-1971 Jeep DJ5
1965-1968 Jeep DJ6
1963-1966 Jeep F-134
1961-1962 Jeep F4-134
1961-1966 Jeep FC150
1961 Jeep FC170
1964-1966 Jeep FC170
1964 Jeep FJ3
1961-1963 Jeep FJ3A
1966-1971 Jeep Jeepster
1956-1966 Jeep Truck
1961-1967 Jeep Universal
1961-1969 Jeep Universal Truck
1961-1962 Jeep Utility
1961-1964 Jeep Utility Wagon
1947-1958 Jeep Willys
1942 Willys 442
Attributes
1st Oil Groove 3/16
2nd Groove 3/32
Alternate Part Number 828.030
California Proposition 65 No
Engborein 3.125
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 3/32
GTIN 00075538046509