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The Cometic Revolution XL base kit for 3 3/4- and 3 13/16-inch applications includes a .010-inch base gasket and a 4-inch spigot to suit specified bore sizes. Offered as a direct-fit replacement, this kit supports accurate top-end assembly. The gasket design conforms load distribution across the sealing area, requires less clamp load and reduces bore distortion without relying on additional sealants or repeated re-torquing.
Cometic Revolution Xl, 3 3/4 & 3 13/16 Base Kit, .010inBase, 4in Spigot
