555
Champion
Spark Plug
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or reproductive harm. For more information go to www.P65Warnings.ca.gov.
| Manufacture | Number |
| Champion Spark Plug | UD16 |
| Motorcraft | BZ8 |
| Year | Make | Model | Engine | Notes |
| 1953 | Checker | A6 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1953 | Checker | A7 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .030 |
| 1954 | Checker | A6 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1954 | Checker | A7 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .030 |
| 1955 | Checker | A8 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1955 | Checker | A8B | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1955 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1956 | Checker | A8 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1956 | Checker | A8B | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1956 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1957 | Checker | A8 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1957 | Checker | A8B | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1957 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1958 | Checker | A8 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1958 | Checker | A8B | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1958 | Checker | A9 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1958 | Checker | A9L | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1958 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1959 | Checker | A9 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1959 | Checker | A9L | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1959 | Checker | Aerobus | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1959 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1959 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1960 | Checker | A9 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1960 | Checker | A9L | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1960 | Checker | Aerobus | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1960 | Checker | Superba | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1960 | Checker | Superba | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1960 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1960 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1961 | Checker | A9 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1961 | Checker | A9L | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1961 | Checker | Aerobus | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1961 | Checker | Marathon | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1961 | Checker | Marathon | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1961 | Checker | Superba | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1961 | Checker | Superba | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1961 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1961 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1962 | Checker | A9 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1962 | Checker | A9L | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1962 | Checker | Marathon | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1962 | Checker | Marathon | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1962 | Checker | Superba | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1962 | Checker | Superba | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1962 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1962 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1963 | Checker | A9 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1963 | Checker | A9L | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1963 | Checker | Marathon | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1963 | Checker | Marathon | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1963 | Checker | Superba | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1963 | Checker | Superba | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1963 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1963 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1964 | Checker | Marathon | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1964 | Checker | Marathon | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1964 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1954 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1964 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1947 | Checker | A2 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1947 | Checker | A3 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1948 | Checker | A2 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1948 | Checker | A3 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1949 | Checker | A2 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1949 | Checker | A3 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1950 | Checker | A2 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1950 | Checker | A3 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1950 | Checker | A4 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1950 | Checker | A5 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1951 | Checker | A4 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1951 | Checker | A5 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1952 | Checker | A4 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1952 | Checker | A5 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1952 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| 1953 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Plug Type UD16 Gap .028 |
| Year | Make | Model | Engine | Trim | Notes |
| 1953 | Checker | A6 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1953 | Checker | A7 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .030 |
| 1954 | Checker | A6 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1954 | Checker | A7 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .030 |
| 1955 | Checker | A8 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1955 | Checker | A8B | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1955 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1956 | Checker | A8 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1956 | Checker | A8B | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1956 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1957 | Checker | A8 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1957 | Checker | A8B | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1957 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1958 | Checker | A8 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1958 | Checker | A8B | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1958 | Checker | A9 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1958 | Checker | A9L | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1958 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1959 | Checker | A9 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1959 | Checker | A9L | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1959 | Checker | Aerobus | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1959 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1959 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1960 | Checker | A9 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1960 | Checker | A9L | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1960 | Checker | Aerobus | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1960 | Checker | Superba | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1960 | Checker | Superba | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1960 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1960 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1961 | Checker | A9 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1961 | Checker | A9L | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1961 | Checker | Aerobus | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1961 | Checker | Marathon | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1961 | Checker | Marathon | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1961 | Checker | Superba | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1961 | Checker | Superba | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1961 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1961 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1962 | Checker | A9 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1962 | Checker | A9L | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1962 | Checker | Marathon | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1962 | Checker | Marathon | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1962 | Checker | Superba | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1962 | Checker | Superba | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1962 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1962 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1963 | Checker | A9 | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1963 | Checker | A9L | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1963 | Checker | Marathon | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1963 | Checker | Marathon | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1963 | Checker | Superba | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1963 | Checker | Superba | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1963 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1963 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1964 | Checker | Marathon | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1964 | Checker | Marathon | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1964 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. l6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1954 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1964 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS OHV Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1947 | Checker | A2 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1947 | Checker | A3 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1948 | Checker | A2 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1948 | Checker | A3 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1949 | Checker | A2 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1949 | Checker | A3 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1950 | Checker | A2 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1950 | Checker | A3 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1950 | Checker | A4 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1950 | Checker | A5 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1951 | Checker | A4 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1951 | Checker | A5 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1952 | Checker | A4 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1952 | Checker | A5 | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1952 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
| 1953 | Checker | Taxicab | 3.7L 3704CC 226Cu. In. L6 GAS L-HEAD Naturally Aspirated | Base | Plug Type UD16 Gap .028 |
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