Replacement for Triumph OEM # OEM # 83-3875

Note: It is advisable to check the inside diameter of the pipes you want to use these tips on to be sure they are going to fit

These full radius steel bungs are 1" long x 3/4" diameter and are 5/16"-18 thread

Black natural rubber sandwiched between two threaded 5-16"-18 studs

Exhaust Spigot Adapters for 1972-up OIF Triumph Motorcycles Makes_BSA Replacement for Triumph OEM #These steel exhaust spigots fit into your 1972 and up 750 c. c. OIF (oil in frame) Triumph motorcycle head and allow you to run earlier 650 c. c. exhaust pipes. The spigot end that fits into your head is 1. 39" and is a tap in fit. Chill these adapters in the freezer, heat up the head lightly with a propane torch and tap these in place. The heat expands the aluminum, the cold contracts the steel adapters, and this allows easy assembly that tightens up