TN 605278 120V 2-Stage Vacuum Motor for Castex, Nobles, Tennant Floor Equipment. Reliable Ametek-Lamb brand vacuum motor. Fits Castex, Nobles, and Tennant models including 750 All Surface Cleaner, AC-15 All Surface Cleaner, Quick Clean 1500, Hawk 800, SCX20, 852, and Nobles Speed Scrub 20E (Electric). 5.7" Diameter, 2-Stage, 120V AC vacuum motor. Most models require only one vacuum motor per unit. Priced Each. Replaces Tennant 25151, 605278. Our Part Number TN 605278.