Steering Column Dust Seal at Firewall For Aston Martin DB 1957-1959; BL 5Designed for the classic Aston Martin DB2, DB3, DB2 4, DB, DBD, and DB4 models from 1950 to 1959, this steering column dust seal fits perfectly at the firewall. It features a 1 1 8" wide hole at the top and a 4 1 2" outer diameter at the base, ensuring a snug and secure fit. Replacing AM part #50999, this seal has been improved over the original design, offering enhanced tear resistance and durability. Its tough construction resists scuffs, chemicals,