Ignition Timer Cover Gasket Bt 70/79 Spt 71/79 2 Hole Replaces Hd 32591-70 These top quality gaskets are available in your choice of 2 hole for screw only type cover mounting or 4 hole for screw and headless pop rivet type cover mounting.Cometic 2 Hole Ignition Timer Cover Gasket Fits Big Twin 1970/1979, Sportster 1971/1979, Shovelhead 1970/1979, K Model & Sportster 1971/1979 Package of 10 Replaces HD# 32591-70