Twin Power™ lower rocker box gaskets provide reliable sealing between the rocker box and head on Twin Cam and Evolution Big Twin engines, helping reduce top-end oil leaks.

• Direct fit replacements for OEM lower rocker box gaskets on listed Twin Cam and Evo Big Twins
• Help maintain proper sealing at a common leak point
• Includes Rocker, Lower, Housing
• Sold as a pair
• Made in USA