Here is a New Chrome Oil Breather / Filler Cap. This is the Shorter Less Expensive Style. This fits your 1946 - 1964 Cadillac.  We Also Carry the Correct Original Style in our store, as well as another style. Also Works Great for your Classic Car or Hot Rod. For other Tune-up Parts,  Please see our other Store Items. We also have the Oil Filler / Breather Decal in our store.