Mfr # 18-8300. At both ends of the crankshaft are seals that prevent oil from leaking out of the engine The front and rear primary seals are commonly referred to as such Oil may build on the underside of the motor if a crankshaft seal leak is modest What causes the failure of oil seals After continuous exposure to high temperatures, high pressures, vibrations, and contact with hot fluids, even the best gasket or seal will develop leaks Except in the most extreme circumstances of catastrophic failure, gasket leaks begin as drops that you may notice at first Key Features 1378 OD 0866 Shaft Size 0280 Width GLM 86011, EvinrudeJohnson 0341280, Mallory 976221 are all interchangeable Quality comparable to, if not superior to, that of the original equipment Product Specifications SKU 188300 UPC 808282234515 Weight 002 LBS Manufacturer Part Number MPN 188300 Alternate Products SKU 341280, 2608300, 188300 Quantity 1 OD 1378, Shaft Size 0866, Width 0280 This product replaces 70739045714, 478300, GLM86011, 808282234515, 9286011, 976221
