Mastodon Rubber PCV/Breather Grommets O.D. 1 1/4" I.D. 3/4"

Rubber breather/PCV grommets for steel valve covers — sized 1.25" outside diameter (fits the standard 1-1/4" valve cover hole) with a 3/4" inside diameter (fits standard PCV valves and small breather necks). The grommet your build needs when you've added a new breather or PCV valve and the original grommet is dried out or missing.

Specifications:

• Outside diameter: 1-1/4" (1.25") — fits standard valve cover holes
• Inside diameter: 3/4" — fits standard PCV valves / breather stems
• Material: Rubber
• Application: Steel valve covers (universal)