Cushion Engine Mount 3/4 in. Stud Rubber | Barr Marine 8-0006 Barr Marine 3/4 in. Stud Rubber Cushion Engine Mount | 8-0006 Cast aluminum base mount with single rubber cushion is designed for mounting marine engines or transmissions. Barr rubber engine mount 3/4"-16UNF stud size 5 in. base length 1 3/4 in. base width 4 1/2 in. overall height from base to top of stud 4 in. length from bolt hole center to bolt hole center 7/16 in. hold down bolt size 2 1/4 in. shaft length from top of shaft to base nut Adjustable both vertically and horizontally to assist with alignment 350 lbs. capacity per mount Rubber cushions are locked to the base Rubber is oil and fuel resistant Replaces Osco DF-210 Replaces Mercury 66284A2