The 5R110 transmission pan is constructed of lightweight, cast-aluminum for efficient heat dissipation, durability, and holds approximately three quarts more fluid than the OE version. The patented, sloped floor design results in 100% fluid drainage, while the magnetic drain plug catches and eliminates debris from circulating throughout the transmission. The copper sealing ring provides a leak-free seal. The drain plug also uses a 1" socket for easy removal & is designed not to strip. The 5R110 transmission pan comes with a pan gasket, bolts and washers.