CASE Work Lamp Assembly for Front and Rear Flood, 12-Volt, 55-Watt. Fits CASE Loader Backhoe Models 580M, 580M Series II, 580M Series III, 580SM, 580SM Series II, 580SM Series III, 580SM+ Series II, 580SM+ Series III, 580N, 580N Tier 4A, 590SM, 590SM Series II, 590SM Series III, and 590SM+ Series III. Fits CASE Crawler Bull Dozer / Loader Models 650K, 650K Series II, 750K, 750K Series II, 850K, and 850K Series II. Fits CASE Loader Landscaper Model 570MXT. Replaces 398847A1 and 398847A2.