Cometic, EST rocker cover gasket kit. Evo Big Twin - 84-91 Evo Big Twin (NU) 977934 One of the most versatile

One of the most versatile mirrors around

Note: See 943261 clear lens & 943262 smoke lens for style matching Shorty turn signals

Amber colored lens

4 Liter volume

preventing any damage to bearings or bore

Cometic, EST rocker cover gasket kit. Evo Big Twin - 84-91 Evo Big Twin (NU) 977934 One of the most versatileKit for two cylinders. EST's embossed stainless steel metal substrate is coated with a proprietary high temperature rubber material that virtually eliminates leakage when joining two metal surfaces. Rocker cover gaskets are . 020" thick and have . 005" of high temperature rubber on both sides. They will not weep, extrude, tear or become brittle over time. OEM replacement reference 17038 90.