.020 Inch Undersized Main Bearing Set for 1941-1971 Jeep Models w/ 4-134 Engines Crown Automotive. 020 inch Undersized Main Bearing Set for Jeep 1945 71 CJ 2A, CJ 3A, CJ 3B, CJ 5, CJ 6, 1966 71 C101 Commando, 1956 64 FC 150, 1941 63 MB, M38, M38 A1, 1948 50 VJ Jeepster, 1946 55 Willys Sedan Delivery, Pickup, Station Wagon w 4 134 Engines Features and Benefits: . 020 inch Undersized 12 Month Warranty Direct Replacement For 4 134 L and F Head Engines Details: Material: Metal Color: Silver Hardware Included: Use Existing Hardware Application: 1941