Fits the following models: Mercury Marine & Mariner Outboard Motors: 30 hp 30 Carbureted (3 Cylinder)(4-Stroke)(2-stroke); 0P153500 to 0P400999 (fits 2.31:1 & 2.33:1 gear ratio lower units 30 hp 30 Carbureted (3 Cylinder)(4-Stroke)(2-stroke); 0T409000 to 1B226999 (fits 2.31:1 & 2.33:1 gear ratio lower units 40 hp 40 (4-Stroke)(4 Cylinder)(2-stroke); 0P094500 to 0P206999 (fits 2.31:1 gear ratio lower unit ONLY) 40 hp 40 (4-Stroke)(4 Cylinder)(2-stroke); 0T178500 to 0T598999 (fits 2.31:1 gear ratio lower unit ONLY) 40 hp 40 Carbureted (3 Cylinder)(4-Stroke); 0P153500 to 0P400999 (fits 2.31:1 & 2.33:1 gear ratio lower units ONLY 40 hp 40 Carbureted (3 Cylinder)(4-Stroke); 0T409000 to 1B226999 (fits 2.31:1 & 2.33:1 gear ratio lower units ONLY 50 hp 50 (4-Stroke)(4 Cylinder); 0P094500 to 0P206999 (fits 2.31:1 gear ratio lower unit ONLY) 50 hp 50 (4-Stroke)(4 Cylinder); 0T178500 to 0T598999 (fits 2.31:1 gear ratio lower unit ONLY) 60 hp 60 (4-Stroke)(4 Cylinder); 0P094500 to 0P206999 (fits 2.31:1 gear ratio lower unit ONLY) 60 hp 60 (4-Stroke)(4 Cylinder); 0T178500 to 0T598999 (fits 2.31:1 gear ratio lower unit ONLY) 65 hp 65 JET(2-stroke); 0D283222 to 0G760299 (fits 2.31:1 3-Jaw & 6-Jaw lower units) 65 hp 65 JET(2-stroke); 0G760300 to 0T979999 (fits 2.31:1 3-Jaw & 6-Jaw lower units) 65 hp 65 JET(2-stroke); 0P017000 to 0P325499 (fits 2.31:1 3-Jaw & 6-Jaw lower units) 65 hp 65 JET(2-stroke); 9793577 to 0P016999 (fits 2.31:1 3-Jaw & 6-Jaw lower units) 75 hp 75 (3 Cylinder)(2-stroke); 0D283222 to 0G760299 (fits 2.31:1 3-Jaw & 6-Jaw lower units) 75 hp 75 (3 Cylinder)(2-stroke); 0G760300 to 0T979999 (fits 2.31:1 3-Jaw & 6-Jaw lower units) 75 hp 75 (3 Cylinder)(2-stroke); 0P017000 to 0P325499 (fits 2.31:1 3-Jaw & 6-Jaw lower units) 75 hp 75 (3 Cylinder)(2-stroke); 9793577 to 0P016999 (fits 2.31:1 3-Jaw & 6-Jaw lower units) 75 hp 75 DFI (3 Cylinder)(1.5L)(2-stroke); 0T980000 to 1B226999 (fits 2.07:1 & 2.33:1 gear ratio lower units) 75 hp 75 DFI (3 Cylinder)(1.5L)(2-stroke); 1B227000 to 1B417701 (fits 2.07:1 & 2.33:1 gear ratio lower units) 75 hp 75 EFI (4-Stroke); 1B172291 to 1B366822 75 hp 75 EFI (4-Stroke); 1B366823 & Newer 80 hp 80 EFI (4-Stroke); 0P459572 & 2B094995 80 hp 80 EFI (4-Stroke); 1B227000 to 1B366822 80 hp 80 EFI (4-Stroke); 1B366823 & 2B094995 80 hp 80 JET(2-stroke); 0D283222 to 0G760299 (fit 2.07:1 gear ratio 6-Jaw lower unit ONLY) 80 hp 80 JET(2-stroke); 0G760300 to 0T979999 80 hp 80 JET(2-stroke); 0P017000 to 0P325499 80 hp 80 JET(2-stroke); 9793577 to 0P016999 (fit 2.07:1 gear ratio 6-Jaw lower unit ONLY) 90 hp 90 (3 Cylinder)(2-stroke); 0D283222 to 0G760299 (fits 2.31:1 gear ratio 3-Jaw & 6-Jaw lower units) 90 hp 90 (3 Cylinder)(2-stroke); 0G760300 to 0T979999 90 hp 90 (3 Cylinder)(2-stroke); 0P017000 to 0P325499 90 hp 90 (3 Cylinder)(2-stroke); 9793577 to 0P016999 (fits 2.31:1 gear ratio 3-Jaw & 6-Jaw lower units) 90 hp 90 DFI (3 Cylinder)(1.5L)(2-stroke); 0T801000 to 1B226999 90 hp 90 DFI (3 Cylinder)(1.5L)(2-stroke); 0T980000 to 1B226999 90 hp 90 DFI (3 Cylinder)(1.5L)(2-stroke); 1B227000 to 1B417701 90 hp 90 EFI (4-Stroke); 1B172291 to 1B366822 90 hp 90 EFI (4-Stroke); 1B366823 & Newer 100 hp 100 (4 Cylinder)(2-stroke); 0D283222 to 0G760299 (fits 2.07:1 gear ratio 6-jaw lower unit ONLY) 100 hp 100 (4 Cylinder)(2-stroke); 0G760300 to 0G965520 100 hp 100 (4 Cylinder)(2-stroke); 0P017000 to 0P058999 100 hp 100 (4 Cylinder)(2-stroke); 9793577 to 0P016999 (fits 2.07:1 gear ratio 6-jaw lower unit ONLY) 100 hp 100 EFI (4-Stroke); 0P459572 to 2B094995 100 hp 100 EFI (4-Stroke); 1B227000 to 1B366822 100 hp 100 EFI (4-Stroke); 1B366823 to 2B094995 115 hp 115 (4 Cylinder)(2-stroke); 0D283222 to 0G760299 (fits 2.07:1 gear ratio 6-jaw lower unit ONLY) 115 hp 115 (4 Cylinder)(2-stroke); 0G760300 to 0T979999 115 hp 115 (4 Cylinder)(2-stroke); 0P017000 to 0P325499 115 hp 115 (4 Cylinder)(2-stroke); 9793577 to 0P016999 (fits 2.07:1 gear ratio 6-jaw lower unit ONLY) 115 hp 115 DFI (3 Cylinder)(1.5L)(2-stroke); 0T801000 to 1B226999 115 hp 115 DFI (3 Cylinder)(1.5L)(2-stroke); 1B227000 to 1B417701 115 hp 115 EFI (4-Stroke); 1B366823 & Newer 125 hp 125 (4 Cylinder)(2-stroke); 0D283222 to 0G760299 (fits 2.07:1 gear ratio 6-jaw lower unit ONLY) 125 hp 125 (4 Cylinder)(2-stroke); 0G760300 to 0T979999 125 hp 125 (4 Cylinder)(2-stroke); 0P017000 to 0P325499 125 hp 125 (4 Cylinder)(2-stroke); 9793577 to 0P016999 (fits 2.07:1 gear ratio 6-jaw lower unit ONLY)