Part number 20939 is a push-in valve-cover breather crafted from billet 6061-T6 aluminum with a polished finish. Designed to fit a 1¼″ valve-cover hole, it features an oval, retro-styled top and a two-piece construction for easy maintenance. The push-in design uses a positive O-ring seal, and the removable internal mesh element makes service easy. Ideal for classic and custom engines seeking both vintage styling and functionality.

• Application: 1¼″ valve-cover hole
• Material: 6061-T6 billet aluminum
• Finish: Polished
• Top style: Oval retro design
• Design: Two-piece, serviceable internal element
• Mounting: Push-in O-ring seal