Omix Engine Piston, .040; 41-71 Willys/Jeep, 134CID 17427.04 — Vicious Offroad Skip to content
Piston 134Ci .040 1941-1971 Willys and Jeep by Omix
  • .040 over
  • Engine work maybe required to install this part
  • Limited 5 Year Warranty


Over time all internal engine wear surfaces become worn. This is true for crankshaft journals, connecting rods, camshaft lobes, piston rings, bearings, etc. When rebuilding a worn out engine you'll need to replace them all in order to regain the engine's original performance. And, let's face it, Jeep's need all the power we can get. Omix offers new high quality replacement engine parts to get your Jeep back on the road. This replacement piston fits 41-45 MB/GPW, 45-49 CJ2A, 49-53 CJ3A, 54-64 DJ3A, 52-64 CJ3B, 55-71 CJ5 / CJ6, 65-71 DJ5, 50-52 M38, 52-71 M38A1, 47-63 Pickup, 46-63 Station Wagon, 49-50 Jeepster, 58-64 FC-150, 63-64 FC-170 and 67 Commando models equipped with 134 ci engines with 0.040-inch over-bore. Includes wrist pin. Sold individually- use 4 per engine. Replaces OE 8121658

Fitment

Year Make Model
1962 Jeep CJ6
1949 Jeep Willys
1968 Jeep CJ5
1960 Jeep CJ3
1962 Jeep CJ5
1952 Willys 4-73 Sedan Delivery
1947 Jeep Willys
1965 Jeep FC150
1963 Jeep FC170
1951 Willys Station Wagon
1970 Jeep DJ5
1959 Jeep CJ3
1965 Jeep CJ5
1961 Jeep CJ6
1949 Willys Station Wagon
1953 Willys Station Wagon
1971 Jeep DJ5
1970 Jeep CJ5
1941 Willys MB
1972 Jeep Commando
1968 Jeep DJ6
1971 Jeep CJ5
1967 Jeep CJ6
1943 Willys MB
1962 Jeep FC170
1967 Jeep CJ5
1960 Jeep FC170
1960 Jeep CJ6
1957 Jeep FC150
1952 Willys Station Wagon
1963 Jeep CJ5
1965 Jeep CJ6
1966 Jeep DJ5
1961 Jeep FC170
1950 Jeep Willys
1965 Jeep FC170
1965 Jeep DJ5
1950 Willys Station Wagon
1953 Willys 4-75 Sedan Delivery
1961 Jeep CJ5
1959 Jeep CJ6
1970 Jeep CJ6
1960 Jeep CJ5
1962 Jeep FC150
1966 Jeep CJ5
1969 Jeep DJ5
1971 Jeep CJ6
1968 Jeep CJ6
1962 Jeep Utility Wagon
1964 Jeep CJ6
1969 Jeep CJ6
1955 Willys 4-75 Sedan Delivery
1964 Jeep FC170
1964 Jeep CJ5
1946 Willys Station Wagon
1948 Willys Station Wagon
1948 Jeep Willys
1963 Jeep FC150
1964 Jeep FC150
1947 Willys Station Wagon
1954 Willys 4-75 Sedan Delivery
1967 Jeep DJ5
1961 Jeep FC150
1961 Jeep Utility Wagon
1958 Jeep FC170
1965 Jeep FC170HD
1964 Jeep FC170HD
1966 Jeep CJ6
1957 Jeep FC170
1959 Jeep FC170
1959 Jeep FC150
1969 Jeep CJ5
1958 Jeep FC150
1973 Jeep Commando
1960 Jeep FC150
1963 Jeep CJ6
1963 Jeep FC170HD
1942 Willys MB
1959 Jeep CJ5