The AFE 46-70092 14-10.5 Differential Cover for your 2003-2005 Dodge 5.9L Cummins brings performance engineering to the protection of your differential. This differential cover has a 5 quart lube capacity at the factory line, magnetic drain plug and magnetic tipped fill plug for maximum rear-end protection. Built-in internal and external fins transfer heat from the fluid to the outside air for maximum cooling. aFe has also designed a large oil level sight glass with calibration plug set to the factory fluid level to eliminate overfilling. This differential cover is constructed out of durable die-cast A380 aluminum with reinforced ribs and wrinkle black powder-coating with machined fins for maximum strength and styling. This cover fits the AA14-10.5 axles and includes an O-ring for a leak-free seal.