Sierra International 18-2956 Marine Head Gasket for Johnson/Evinrude Outboard Motor Sierra Tune Up Kit Contains contact set, condenser and rotor Sierra part number: 18-5260 Interchangeable with the following: GLM 72650, Evinrude/Johnson 173829, 987926, Mallory 9-29304, 9-29309, OMC 173829, 987926 Fit specific, check part numbers to ensure proper fit