2530-01-569-9930 Oshkosh Steering Box, p/n 3669979. Made by R.H. Sheppard Company. Model M110PLJ1. Designed for vehicles with front axles between 14,600 and 18,000 lbs. This part has only been opened to photograph. Brown drips on box are cosmolene Corrosion inhibitor. Invoice on this box is $1207.00, 14842 1WH1C