Propellers, Drive & Lower Unit

Sierra Upper Unit Seal Kit 18-2648, Replaces Mercury Marine 26-32511A1, MerCruiser Alpha One

Sierra 18-2653 Lower Unit Seal Kit, Replaces 26-55682A1, for Mercury/Mariner Outboard Gearcase

Sierra Lower Unit Seal Kit 18-2645-1, Replaces 26-76868A1, Fits Mercruiser Bravo I, II and III

Sierra 18-2646-1 Lower Unit Seal Kit for Alpha One Gen II Sterndrives

Sierra 18-2643 Upper Unit Seal Kit for MerCruiser Bravo II X, Bravo III, Bravo III X and Blackhawk Drives

Sierra 18-2619-1 Outdrive Gasket Set - Replaces 27-64818A3, Fits MerCruiser 1, R, MR, Alpha 1 with Exhaust Tube

Sierra Transom Seal Kit 18-2601-1, Replaces 30-803097T1, Fits Mercury R, MR, Alpha One (1983-90) and Alpha One SS (1986-89)

Sierra 18-2613 Outdrive Gasket Set - Replaces OMC 508105

Sierra Outdrive Gasket Set 18-2614, Replaces 27-64818, MerCruiser 1967-1982

Sierra 18-2603 Lower Shift Cable Kit, Replaces Mercruiser 19543T1, 19543T2, 865436A03

Sierra Lower Shift Cable Kit 18-2600 for MerCruiser #1R, MR, Alpha, Alpha I, Gen II and Bravo Drives, Package of 25

Sierra 18-2599 Face Seal and Tool, Fits Alpha One Gen II Drives, Replaces 26-816575A2

Sierra 18-2586 Upper Unit Seal Kit for Volvo Penta - Replaces 3850594

Sierra Drain Plug 18-2454, Replaces 3854539, for OMC Cobra SX Sterndrive

Sierra 18-2414 Engine Coupler, Replaces MerCruiser 97432A2, Fits 3.7L/3.7LX S/N 6170297 & Up (1983-1989)

Sierra 18-2399 Retaining Spring - Replaces 324369 for V-4 & V-6 Outboard Gearcase

Sierra Magnetic Drain Screw 18-2378, Replaces 309243, for Cobra Drives & V-6 40-50HP (1989-97)

Sierra 18-2380-9 Cotter Pin, Pack of 10, Yamaha Outboard Prop Nut Hardware, Replaces 91490-30030-00

Sierra Drain Screw 18-2371, M8-1.25 Thread, Replaces 688-45341-00-00, Pack of 50

Sierra 18-2248 Shift Cable Assembly, Replaces Mercruiser 73723A1, Fits #1 Drives IA/IB/IC EZ-Shift MC-I

Sierra Shift Shaft 18-2322, Replaces 62104 and 621041, for Mercruiser I and Alpha I Stern Drives

Sierra 18-2221 Gear Set for Johnson/Evinrude Outboards 112-125 HP

Sierra 18-21753 Engine Coupler, White, Replaces OMC 3853862 / Volvo 3853862-5, Fits Volvo Penta 50L & 58L (1989-1996)