Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
| Attribute | Value |
|---|---|
| Center Electrode Tip Material | Nickel |
| Classification | Champion Copper Plus |
| Electrical Terminal Type | Non-removable Nut |
| Ground Electrode Core Material | Nickel |
| Hex Size | 0.813, 20.650 |
| Insulator Height | 0.09 |
| Plug Type | Rj12yc |
| Pre Gap Size | 0.035, 0.90 |
| Reach | 0.375 |
| Seat Type | Flat |
This part fits the following vehicles:
This is a universal part that fits 5,065 vehicle configurations across 23 makes.
We offer fast, reliable shipping on all orders:
We want you to be 100% satisfied with your purchase. That's why we offer:
This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.
Warranty does NOT cover:
| Brand | Part Number |
|---|---|
| ACDelco | CR43S |
| ACDelco | R42S |
| ACDelco | R43CS |
| ACDelco | R43S |
| ACDelco | R44S |
| Bosch | WR7F |
| Champion Spark Plug | RJ12YC |
| DENSO | W20PRU |
| Mopar | 4091933 |
| Mopar | 4339425 |
| Motorcraft | AR32 |
| Motorcraft | AR42 |
| Motorcraft | AS42C |
| NGK | BPR6S |
| Prestolite | 14R32 |
| Prestolite | 14R42 |
Fits Years: 1949 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980
In operation since 2007. Trusted by over a million DIYers, mechanics, and body shops across all 50 states.
If it doesn't fit, we make it right. No gimmicks, no fine print.
Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.
Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.
Ask Wrenchy →