The Sierra 18-5268 Tune Up Kit is interchangeable with the following: GLM 71720, Mallory 9-29311. Each Sierra product meets or exceeds the original equipment part it replaces. Contains Contact Set 18-5311, Condenser 18-5345, Rotor 18-5418, Distributor Cap 18-5385.

The Sierra 18-5283 Tune-Up Kit is interchangeable with the following: Mallory 9-29324. Contains: 18-5397 Distributor Cap, 18-5399 Distributor Cap Gasket, 18-5404-1 Rotor, 18-5314 Contact Set, 18-5338 Condenser.