Seals-It Firewall Grommet 4.00" O.D. Blank Disc Brake Rotor Dust Cap Lincoln and Mercury C4 and

Lincoln and Mercury C4 and C6 automatic transmissions with a reverse valve body

Straight through nonrestrictive system design maximizes airflow improving performance and fuel economy

Bolts Into Stock Bypass Mounting Holes

and are a popular choice for street stocks

4-3/4 Bolt Pattern

Seals-It Firewall Grommet 4.00" O.D. Blank Disc Brake Rotor Dust Cap Lincoln and Mercury C4 andProduct Description: Firewall Grommet 1 Hole 4 in OD Aluminum Rubber Black Sold Individually From asphalt and dirt track racers Seals It rod end seals get the job done. In business for over 25 years, Seals It manufactures seals, grommets, and other automotive products for many industries including NASCAR, motorsports, and 4x4 off road vehicles, as well as agricultural, aerospace, transportation, and other applications.