Pushrod, engine, exhaust, Norton twins, each, Suits Models 77, 99 650/99 750 pre engine number 125871 . Hi Tensile Hollow Steel Tube, Hardened Steel Ends. Models 7 & 88. Nominal Length: 7.384" (187.4mm); Outside Diameter: 3/8"; Weight: 65g Original part numbers M14/82ex; 067502 -push rod complete (exhaust)