AD 56407559 Drive End Assembly for Nilfisk Advance Cylinder Brush Model Floor Scrubbers. This assembly fits inside of the core of the cylinder scrub brush which is belt driven. Fit models: Convertamatic Series, Warrior ST, Warrior AXP, Advenger 2800ST, Advenger 3400ST, Adgressor Series, AquaRide Series, BA 625, BA 725, BA 750, BA 755, BA 825, BA 855, BR 600S, BR 650S, BR 700S, BR 700C-XL, BR 800S, BR 850S, BR 850S SBG, BRX 700, BR 1050S, IMAX 28C, IMAX 32C, CMAX 34ST, Hydro-Retriever 2800, Hydro-Retriever 3400, SC 750, SC800, SC 750ST, SC 800 ST and others. Please refer to your parts manual for the proper application. This brush driver is only used on cylinder brush models. Priced Each. Replaces Nilfisk Advance 56315408, 56407559. Our Part Number AD 56407559