Air Valve Knobs

This heavy-duty truck accessory is a chrome aluminum chrome rim with a stainless steel script plate and a plastic crystal on top. It is sold individually and has a size of 9/16 inch I.D. x 2 inch O.D. x 2 inch high. Designed to fit most heavy-duty trucks...

Coming in all shapes and sizes, our knobs even come with different labels such as “emergency”, “tractor”, and “trailer” to make sure you’re pulling on the right one. And the best part? Installation is as easy...

Coming in all shapes and sizes, our knobs even come with different labels such as “emergency”, “tractor”, and “trailer” to make sure you’re pulling on the right one. And the best part? Installation is as easy...

Coming in all shapes and sizes, our knobs even come with different labels such as “emergency”, “tractor”, and “trailer” to make sure you’re pulling on the right one. And the best part? Installation is as easy...

Coming in all shapes and sizes, our knobs even come with different labels such as “emergency”, “tractor”, and “trailer” to make sure you’re pulling on the right one. And the best part? Installation is as easy...

Coming in all shapes and sizes, our knobs even come with different labels such as “emergency”, “tractor”, and “trailer” to make sure you’re pulling on the right one. And the best part? Installation is as easy...

Coming in all shapes and sizes, our knobs even come with different labels such as “emergency”, “tractor”, and “trailer” to make sure you’re pulling on the right one. And the best part? Installation is as easy...

Coming in all shapes and sizes, our knobs even come with different labels such as “emergency”, “tractor”, and “trailer” to make sure you’re pulling on the right one. And the best part? Installation is as easy...

Coming in all shapes and sizes, our knobs even come with different labels such as “emergency”, “tractor”, and “trailer” to make sure you’re pulling on the right one. And the best part? Installation is as easy...