Professional rebuild kits for the Bosch and Marelli distributors used in Porsche 356, 911, 912, and 930 models. Our kits include even those hard-to-find items like springs, bushings, sliding surfaces, insulators, and much more. Instructions and diagrams are not included; we don’t recommend rebuilding a distributor as a DIY project. If you don’t have the experience, skills, and special equipment required for the job, send your distributor in to us or to another experienced rebuilder.