Air Intake & Fuel Sensors. Door Mirror & Hood Mirror. Front Grille & Bumper. Oil Pumps & Parts. Best Price and Good Quality. New Engine Oil Pan for Detroit Diesel Series 60 Western Star 4900SA Freightliner Argosy. Compatible with Detroit Diesel Series 60 Western Star 4900SA Freightliner Argosy. Easy installation: The engine oil pan is easy to install and can be installed quickly. Optimized oil flow: Accurate oil pan design ensures optimal engine oil flow, reduces friction and heat, and improves engine performance and efficiency. Stable performance: The oil sump plays an important role in the engine, protecting internal parts and sealing the oil system to prevent oil leakage. Lower 48 states with physical address. Parts must be in new, re-salable condition. If a part arrives damaged, or is defective, we can help you to take care of it but it must be reported to us immediately. We will reply you within 24 hours on week days. On weekends or holidays, please allow us 48 hours to reply, thanks. / Add to Favourites.