Fits: Mopar cast aluminum covers Valve Cover Breather, Twist-On, Round, Steel, Chrome, Mopar Logo, Each Valve Cover Breather Attachment: Twist-on Breather Shape: Round PCV Valve: No Breather Tube: No Shielded: No Breather Top Style: Mopar logo Grommets Included: No Fits Valve Cover Hole Size: 1.220 in. Diameter (in): 2.578 in. Height (in): 2.260 in. Base Material: Steel Base Finish: Natural Top Material: Steel Top Finish: Chrome Quantity: Sold individually. These breathers from Mancini Racing are designed to complement your Mopar valve covers. They're available in many styles for both production and aftermarket valve covers.