Heavy-duty differential covers and transmission pans provide increased lubricant and cooling capacity for hard-working recreational and utility vehicles. Mag-Hytec covers and pans set your vehicle apart in both aesthetics and function: cast from A356-T6 aluminum and textured black powder coat with machined cooling fins. Magnetic drain plugs trap worn gear material promoting fluid integrity. Each unit is equipped with ARP 568 O-rings for superior sealing. All hardware is 303 stainless steel, no gasket or sealant is required in most applications, and all Mag-Hytec parts are covered by a limited lifetime warranty. Depend on Mag-Hytec when you're pulling a heavy load. Avoid costly recapirs - Extends the life of your vehicle - Expands oil capacity - Runs cooler, lasts longer Average double the fluid capacity Ease of service Dipstick is knurled for quick removal, flat is marked low/high to check the lubrication level and a magnet, which acts as an open filter is at the bottom end. The MS 7/8 - 14 THD port is large enough to be used for filling. The magnet filled drain plug is the same MS port as the dipstick. Both the dipstick and drain are O-ring sealed. The sending unit fitting is 1/8 THD tubing and with a stainless tube plug. The calibration plug is centered on the serial number plate and approximates the stock cover fill plug for the factory fluid level. The O-ring snaps into the inverted "V" groove for a positive seal without gasket or silicone. Plugs, screws and washers are stainless steel in most applications. Mag-Hytec makes the best covers and pans available today.