This piece of plastic holds the ditributor advance mechanism weights in place on all distributor-type Range Rovers and Discoverys through '95. Made from PTFE our new ones will not shatter as the old nylon ones do. Snaps on below the ignition rotor. Originals snap to pieces ... especially when the rotor rusts-on due to lack of regular lube (each 6k miles would be nice). Also fits all MG and Triumph Lucas distributors from '73.
