John Deere AR21059 Sealed Beam Headlight Assembly

The John Deere AR21059 is a 12-volt sealed beam headlight assembly supplied complete with mounting screws. It utilizes a standard 4406 lamp (PAR36) with a B-2 base and C-6 filament, rated at 35 watts and 12.8 design volts. The unit delivers 600 mean spherical candle power (MSCD) with an average rated life of 300 hours. Overall length measures 2.756 inches. This component serves as a direct replacement for original equipment lighting on a wide range of John Deere agricultural and construction machinery. The sealed beam construction ensures resistance to vibration, moisture, and dust ingress typical in field operations. It is compatible with numerous tractor series including the 10, 20, 30, 40, 50, and 55 series utility and row-crop tractors, as well as 350/450/550 series crawler dozers, 500 series backhoe loaders, and 3300-7700 series combines. Cross-references include aftermarket numbers A-AR21059 (A&I Products), WL-0187N, and WL0187N.