New open box. The Performance 4273 Twist-In Oil Filler Breather Cap is a high-quality breather cap designed by Spectra for automotive engines. This breather cap is silver in color with a polished finish, adding a sleek look to your vehicle's engine bay. It is a twist-in type cap that is easy to install and remove. The manufacturer part number is 4273, and it is made in China by Spectra, known for producing reliable car parts and accessories. This breather cap is designed to effectively release pressure and prevent oil leaks in the engine.