Sierra 18-4381 Gasket Overhaul Set

Replacement for Mercruiser Inboard/Outboard #27-43186A1 For use on 224 (3.7L) CID engines; 165; 170; 180 & 190 HP S/N 6916779 & up Gasket sets do not include Front and Rear Crankshaft Seals NOTE: Replaces OEM part #MERCURY MARINE 27-43186A1For: 224 (3.7L) CID Eng; 165; 170; 180; 190 HP S/N 6916779 & UPKit Contains: (4) 18-0175 O-Ring - replaces O.E. # 25-26543(1) 18-0860 O-Ring - replaces O.E. # 25-62700(1) 18-0864 Seal - replaces O.E. # 26-90925(1) 18-0881 Exhaust Elbow Mtg Gasket - replaces O.E. # 27-18272(1) 18-0992 Exhaust Manifold Mounting Gasket - replaces O.E. # 27-68715(1) 18-0994 Carburetor Mounting Gasket - replaces O.E. # 27-70143-1(1) 18-0158 Intake Manifold Gasket - replaces O.E. # 27-70905(2) 18-0111 Exhaust Elbow Mounting Gasket - replaces O.E. # 27-89657(1) 18-0160 Lower Exhaust to Intake Manifold Gasket - replaces O.E. # 27-94136(1) 18-0113 Exhaust Elbow Mounting Gasket - replaces O.E. # 27-97542(1) 18-2843 Thermostat Cover Gasket - replaces O.E. # 27-74830(1) 18-2848 QuadraJet Base Gasket - replaces O.E. # 27-52457-2(1) 18-3878 Head Gasket - replaces O.E. # 27-13709T(1) 18-7121 O-Ring - replaces O.E. # 25-35027(1) 18-0874 Distributor Gasket - replaces O.E. # 27-34486(1) 18-0185 Seal - replaces O.E. # 27-91892(1) 18-2555 Thermostat Gasket - replaces O.E. # 27-89656-1(1) 18-0889 Fuel Pump Mounting Gasket - replaces O.E. # 27-34213(1) 18-4366 Oil Pan Gasket Set - replaces O.E. # 27-72479A5(1) 18-0387 Flywheel Cover Gasket - replaces O.E. # 27-94976(2) 18-0172 Oil Seal - replaces O.E. # 26-97530