View cart “Large Drive Arm” has been added to your cart. M661 Electric Box Housing$37.00 Electric box housing (plastic) for M661 or M755. M661 Electric Box Housing quantity Add to cart Description Description Electric box housing (plastic) for M661 or M755. Part no E9801 Related products Revolving Arm for M755 $134.00 Add to cart Front Casting and Bushings $18.00 – $165.00 Select options 3.5″ O.D. x 1/2″ Pulley $39.00 Add to cart 2.5″ O.D. x 5/8″ Pulley $34.00 Add to cart Autofeed Movement Assembly $105.00 – $152.00 Select options