Avoid a cheap cap that will expel fluid all over your engine.
Air valve may not leak but most I`ve seen do. Thats the dimple on top.
Get one if you want. I am trying to save people frustration.

Last edited by Guitplayer; 07/25/2023 11:15 AM.

~ BD.
"You won't find me in an old folks home" Pioneer Florida Cracker
1958 Apache Stepside
1958 Apache 1/2 ton Panel
1959 Apache 1/2 ton Panel