View cart “Revolving Arm for M661” 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 2.5″ O.D. x 5/8″ Pulley $34.00 Add to cart Cable Machine Belts $16.00 – $20.00 Select options 1″ Pillowblock $22.00 Add to cart M81 Complete Gearbox $954.00 Add to cart Front Casting and Bushings $18.00 – $165.00 Select options