CL 54238A Gearbox for Disc Brush Drive Motors for Clarke Scrubbers. This is a replacement gearbox which is part of the 44809A .75hp disc brush drive motor. Fits many Alto Clarke scrubbers including L2426, S2426, Vision 20B, Vision 21i, Encore L20 and Encore S20. Please check your model before ordering. Dealer list price is over $300.00. Priced Each. Replaces Nilfisk Clarke 54238A, 54238B. Our Part Number CL 54328A.