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Mercury

Mercury Marine has been at the forefront of marine propulsion since Carl Kiekhaefer founded the company in 1939.

Originally a small machine shop, Mercury quickly became synonymous with high-performance racing and innovative engineering. Throughout the 1960s and 70s, their 'Tower of Power' inline-6 engines dominated the industry with their distinctive slim profiles and superior power-to-weight ratios. In the modern era, Mercury has pioneered digital integration with their SmartCraft systems and revolutionized high-horsepower segments with the supercharged Verado series and the world's first V12 outboard. Their engineering philosophy focuses on transient throttle response, high-speed gearcase design, and industry-leading noise and vibration reduction. Today, Mercury remains a dominant force in both recreational fishing and offshore racing, offering a lineup that spans from 2.5hp portables to the massive 600hp Verado.

Technical Authority Verified manufacturer specifications and historical performance data for the Mercury fleet.
Model Year HP Stroke Service Data Cyl. Displ. Fuel System Weight Gear Ratio Status
2.5hp FourStroke 2024 2.5 4-stroke ✓ Verified 1 cyl 85 cc Carbureted 17 kg 2.15:1 ● Current
6hp (2-Stroke) 1990 6 2-stroke ✓ Verified 2 cyl 209 cc Carbureted 27 kg 2.0 Discontinued
7.5hp (Blue Stripe) 1978 7.5 2-stroke ✓ Verified 2 cyl 180 cc Carbureted 29 kg 2.00:1 Discontinued
7.5hp (2-Stroke) 1990 7.5 2-stroke ✓ Verified 2 cyl 179 cc Carbureted 24 kg 2.0 Discontinued
8hp (2-Stroke) 1990 8 2-stroke ✓ Verified 2 cyl 209 cc Carbureted 27 kg 2.0 Discontinued
9.8hp (2-Stroke) 1990 9.8 2-stroke ✓ Verified 2 cyl 179 cc Carbureted 24 kg 2.0 Discontinued
9.8hp (Blue Stripe) 1978 9.8 2-stroke ✓ Verified 2 cyl 180 cc Carbureted 30 kg 2.00:1 Discontinued
9.9hp (2-Stroke) 1990 9.9 2-stroke ✓ Verified 2 cyl 262 cc Carbureted 34 kg 2.0 Discontinued
9.9hp FourStroke EFI 2024 9.9 4-stroke ✓ Verified 2 cyl 209 cc EFI 38.5 kg 2.08:1 ● Current
SeaPro 10hp 2005 10 2-stroke ✓ Verified 2 cyl 262 cc Carbureted 35 kg 2.0 ● Current
SeaPro 15hp 2005 15 2-stroke ✓ Verified 2 cyl 262 cc Carbureted 35 kg 2.0 ● Current
15hp (2-Stroke) 1990 15 2-stroke ✓ Verified 2 cyl 262 cc Carbureted 34 kg 2.0 Discontinued
18hp (2-Stroke) 1990 18 2-stroke ✓ Verified 2 cyl 300 cc Carbureted 39 kg 2.0 Discontinued
20hp (2-Stroke) 1990 20 2-stroke ✓ Verified 2 cyl 400 cc Carbureted 48 kg 2.0 Discontinued
20hp FourStroke EFI 2024 20 4-stroke ✓ Verified 2 cyl 333 cc EFI 45 kg 2.15:1 ● Current
25hp EFI (3-Cyl 500cc) 2024 25 4-stroke ✓ Verified 3 cyl 500 cc EFI 60 kg 2.17:1 ● Current
25hp SeaPro (2-Stroke) 2005 25 2-stroke ✓ Verified 2 cyl 429 cc Carbureted 48 kg 1.92:1 Discontinued
25hp EFI (3-Cyl) 2005 25 4-stroke ✓ Verified 3 cyl 526 cc EFI 78 kg 1.92:1 Discontinued
SeaPro 25hp 2005 25 2-stroke ✓ Verified 2 cyl 400 cc EFI 51 kg 1.92 ● Current
25hp (2-Stroke) 1990 25 2-stroke ✓ Verified 2 cyl 400 cc Carbureted 50 kg 1.92 Discontinued
30hp EFI (3-Cyl) 2005 30 4-stroke ✓ Verified 3 cyl 526 cc EFI 78 kg 1.92:1 Discontinued
30hp EFI (3-Cyl 500cc) 2024 30 4-stroke ✓ Verified 3 cyl 500 cc EFI 66 kg 2.17:1 ● Current
35hp (Inline-4) 1975 35 2-stroke ✓ Verified 4 cyl 650 cc Carbureted 68 kg 2.0 Discontinued
40hp (Inline-4) 1975 40 2-stroke ✓ Verified 4 cyl 720 cc Carbureted 72 kg 2.0 Discontinued
40hp (4-Cyl Carb) 2002 40 4-stroke ✓ Verified 4 cyl 935 cc Carbureted 98 kg 2.00:1 Discontinued
SeaPro 40hp 2005 40 2-stroke ✓ Verified 2 cyl 644 cc EFI 75 kg 1.92 ● Current
40hp FourStroke EFI 2024 40 4-stroke ✓ Verified 3 cyl 747 cc EFI 93 kg 2.00:1 ● Current
45hp (Inline-4) 1975 45 2-stroke ✓ Verified 4 cyl 720 cc Carbureted 72 kg 2.0 Discontinued
50hp (4-Cyl Carb) 2002 50 4-stroke ✓ Verified 4 cyl 935 cc Carbureted 98 kg 2.00:1 Discontinued
50hp (3-Cyl 2-Stroke) 1995 50 2-stroke ✓ Verified 3 cyl 849 cc Carbureted 93 kg 1.64:1 Discontinued
Classic 50 (4-Cyl) 1985 50 2-stroke ✓ Verified 4 cyl 721 cc Twin Carbureted 75 kg 1.83:1 Discontinued
50hp (Inline-4) 1975 50 2-stroke ✓ Verified 4 cyl 721 cc Carbureted 75 kg 2.0 Discontinued
SeaPro 55hp 2005 55 2-stroke ✓ Verified 2 cyl 967 cc EFI 100 kg 1.64 ● Current
60hp (4-Cyl Carb) 2002 60 4-stroke ✓ Verified 4 cyl 935 cc Carbureted 98 kg 2.00:1 Discontinued
60hp (3-Cyl 2-Stroke) 1995 60 2-stroke ✓ Verified 3 cyl 849 cc Carbureted 93 kg 1.64:1 Discontinued
60hp FourStroke EFI 2024 60 4-stroke ✓ Verified 4 cyl 995 cc EFI 112 kg 1.83:1 ● Current
70hp (3-Cyl 2-Stroke) 1995 70 2-stroke ✓ Verified 3 cyl 1165 cc Carbureted 131 kg 2.33:1 Discontinued
75hp FourStroke EFI 2024 75 4-stroke ✓ Verified 4 cyl 2100 cc EFI 163 kg 2.07:1 ● Current
SeaPro 75hp 2005 75 2-stroke ✓ Verified 3 cyl 1386 cc EFI 138 kg 2.33 ● Current
75hp EFI (2.1L) 2015 75 4-stroke ✓ Verified 4 cyl 2100 cc EFI 163 kg 2.07:1 ● Current
75hp EFI (1.7L) 2004 75 4-stroke ✓ Verified 4 cyl 1741 cc EFI 175 kg 2.33:1 Discontinued
75hp OptiMax 2010 75 2-stroke ✓ Verified 3 cyl 1522 cc DFI (Direct Injection) 170 kg 2.33:1 Discontinued
75hp (3-Cyl 2-Stroke) 1995 75 2-stroke ✓ Verified 3 cyl 1165 cc Carbureted 131 kg 2.33:1 Discontinued
80hp (3-Cyl 2-Stroke) 1995 80 2-stroke ✓ Verified 3 cyl 1165 cc Carbureted 131 kg 2.33:1 Discontinued
80hp (Inline-4) 1975 80 2-stroke ✓ Verified 4 cyl 1090 cc Carbureted 95 kg 2.07 Discontinued
85hp (Inline-4) 1975 85 2-stroke ✓ Verified 4 cyl 1090 cc Carbureted 95 kg 2.3 Discontinued
90 Inline 1998 90 2-stroke ✓ Verified 3 cyl 1526 cc Carbureted 109 kg 2.00:1 Discontinued
90hp OptiMax 2010 90 2-stroke ✓ Verified 3 cyl 1522 cc DFI (Direct Injection) 170 kg 2.33:1 Discontinued
90hp (3-Cyl 2-Stroke) 1995 90 2-stroke ✓ Verified 3 cyl 1165 cc Carbureted 131 kg 2.33:1 Discontinued
90hp EFI (2.1L) 2015 90 4-stroke ✓ Verified 4 cyl 2100 cc EFI 163 kg 2.07:1 ● Current
90hp (Inline-6 Tower of Power) 1978 90 2-stroke ✓ Verified 6 cyl 1500 cc Carbureted 125 kg 2.0 Discontinued
90hp EFI (1.7L) 2004 90 4-stroke ✓ Verified 4 cyl 1741 cc EFI 175 kg 2.33:1 Discontinued
100hp (Inline-6 Tower of Power) 1978 100 2-stroke ✓ Verified 6 cyl 1500 cc Carbureted 125 kg 2.0 Discontinued
115hp EFI (2.1L) 2015 115 4-stroke ✓ Verified 4 cyl 2100 cc EFI 163 kg 2.07:1 ● Current
115 Pro XS 2024 115 4-stroke ✓ Verified 4 cyl 2100 cc Multi-Port EFI 165 kg 2.07:1 ● Current
115hp OptiMax 2010 115 2-stroke ✓ Verified 3 cyl 1522 cc DFI (Direct Injection) 170 kg 2.07:1 Discontinued
115hp EFI (1.7L) 2004 115 4-stroke ✓ Verified 4 cyl 1741 cc EFI 175 kg 2.33:1 Discontinued
115 FourStroke EFI 2024 115 4-stroke ✓ Verified 4 cyl 2100 cc Multi-Port EFI 163 kg 2.07:1 ● Current
115hp (Inline-6 Tower of Power) 1978 115 2-stroke ✓ Verified 6 cyl 1635 cc Carbureted 130 kg 2.0 Discontinued
115 Command Thrust 2024 115 4-stroke ✓ Verified 4 cyl 2100 cc Multi-Port EFI 165 kg 2.38:1 ● Current
115hp OptiMax Pro XS 2012 115 2-stroke ✓ Verified 3 cyl 1522 cc DFI (Direct Injection) 195 kg 1.75:1 Discontinued
115hp Tower of Power (Inline 6) 1985 115 2-stroke ✓ Verified 6 cyl 1635 cc Carbureted 140 kg 2.00:1 Discontinued
125hp (Inline-6 Tower of Power) 1978 125 2-stroke ✓ Verified 6 cyl 1635 cc Carbureted 135 kg 2.0 Discontinued
125hp OptiMax 2010 125 2-stroke ✓ Verified 3 cyl 1522 cc DFI (Direct Injection) 170 kg 2.07:1 Discontinued
135hp Verado (L4) 2008 135 4-stroke ✓ Verified 4 cyl 1732 cc EFI + Supercharger 231 kg 2.08:1 Discontinued
135hp V6 Black Max 2000 135 2-stroke ✓ Verified 6 cyl 2507 cc Triple Carbureted 184 kg 1.87:1 Discontinued
135hp (Inline-6 Tower of Power) 1978 135 2-stroke ✓ Verified 6 cyl 1635 cc Carbureted 135 kg 2.0 Discontinued
135hp V6 OptiMax 2010 135 2-stroke ✓ Verified 6 cyl 2507 cc DFI (Direct Injection) 195 kg 1.87:1 Discontinued
140hp (Inline-6 Tower of Power) 1978 140 2-stroke ✓ Verified 6 cyl 1635 cc Carbureted 138 kg 2.0 Discontinued
150hp V6 OptiMax 2010 150 2-stroke ✓ Verified 6 cyl 2507 cc DFI (Direct Injection) 195 kg 1.87:1 Discontinued
150 FourStroke 2024 150 4-stroke ✓ Verified 4 cyl 3000 cc EFI 206 kg 1.92:1 ● Current
150hp OptiMax Pro XS 2012 150 2-stroke ✓ Verified 6 cyl 2507 cc DFI (Direct Injection) 195 kg 1.87:1 Discontinued
150hp (Inline-6 Tower of Power) 1978 150 2-stroke ✓ Verified 6 cyl 1635 cc Carbureted 140 kg 2.0 Discontinued
150hp EFI (3.0L) 2012 150 4-stroke ✓ Verified 4 cyl 3000 cc EFI 206 kg 1.92:1 ● Current
150hp V6 XR6 2000 150 2-stroke ✓ Verified 6 cyl 2507 cc Triple Carbureted 184 kg 1.87:1 Discontinued
150hp V6 Black Max 2000 150 2-stroke ✓ Verified 6 cyl 2507 cc Triple Carbureted 184 kg 1.87:1 Discontinued
150hp Verado (L4) 2008 150 4-stroke ✓ Verified 4 cyl 1732 cc EFI + Supercharger 231 kg 2.08:1 Discontinued
150hp V6 XR4 (High Speed) 2000 150 2-stroke ✓ Verified 6 cyl 2507 cc Triple Carbureted 184 kg 1.78:1 Discontinued
150hp Black Max 1990 150 2-stroke ✓ Verified 6 cyl 2507 cc Carbureted 184 kg 1.87:1 Discontinued
175hp V6 OptiMax 2010 175 2-stroke ✓ Verified 6 cyl 2507 cc DFI (Direct Injection) 195 kg 1.87:1 Discontinued
175hp V6 EFI 2000 175 2-stroke ✓ Verified 6 cyl 2507 cc EFI 184 kg 1.87:1 Discontinued
175hp Verado (L4) 2008 175 4-stroke ✓ Verified 4 cyl 1732 cc EFI + Supercharger 231 kg 2.08:1 Discontinued
200 OptiMax (2-Stroke) 2010 200 2-stroke ✓ Verified 6 cyl 3032 cc DFI (Direct Injection) 225 kg 1.75:1 Discontinued
200hp V6 EFI 2000 200 2-stroke ✓ Verified 6 cyl 2507 cc EFI 184 kg 1.87:1 Discontinued
200hp V6 OptiMax 2010 200 2-stroke ✓ Verified 6 cyl 3032 cc DFI (Direct Injection) 225 kg 1.75:1 Discontinued
200hp Verado (L4) 2008 200 4-stroke ✓ Verified 4 cyl 1732 cc EFI + Supercharger 231 kg 2.08:1 Discontinued
225hp V6 Pro Max EFI 2000 225 2-stroke ✓ Verified 6 cyl 2507 cc EFI 184 kg 1.87:1 Discontinued
225hp Verado (L6) 2008 225 4-stroke ✓ Verified 6 cyl 2598 cc EFI + Supercharger 288 kg 1.85:1 Discontinued
225hp V6 OptiMax 2010 225 2-stroke ✓ Verified 6 cyl 3032 cc DFI (Direct Injection) 225 kg 1.75:1 Discontinued
225 OptiMax (2-Stroke) 2010 225 2-stroke ✓ Verified 6 cyl 3032 cc DFI (Direct Injection) 225 kg 1.75:1 Discontinued
250hp Verado (L6) 2008 250 4-stroke ✓ Verified 6 cyl 2598 cc EFI + Supercharger 288 kg 1.85:1 Discontinued
250hp V6 OptiMax 2010 250 2-stroke ✓ Verified 6 cyl 3032 cc DFI (Direct Injection) 225 kg 1.75:1 Discontinued
250hp OptiMax Pro XS 2012 250 2-stroke ✓ Verified 6 cyl 3032 cc DFI (Direct Injection) 229 kg 1.75:1 Discontinued
250 Pro XS V8 2024 250 4-stroke ✓ Verified 8 cyl 4600 cc EFI 229 kg 1.75:1 ● Current
275hp Verado (L6) 2008 275 4-stroke ✓ Verified 6 cyl 2598 cc EFI + Supercharger 288 kg 1.85:1 Discontinued
300hp Verado (L6) 2008 300 4-stroke ✓ Verified 6 cyl 2598 cc EFI + Supercharger 288 kg 1.85:1 Discontinued
300 Verado V8 2024 300 4-stroke ✓ Verified 8 cyl 4600 cc EFI 272 kg 1.85:1 ● Current
350 Verado V10 2024 350 4-stroke ✓ Verified 10 cyl 5700 cc EFI 316 kg 2.08:1 ● Current
V10 400hp SeaPro 2024 400 4-stroke ✓ Verified 10 cyl 5700 cc EFI 316 kg 2.08:1 ● Current
400 Verado V10 2024 400 4-stroke ✓ Verified 10 cyl 5700 cc EFI 316 kg 2.08:1 ● Current
500R Racing V8 2024 500 4-stroke ✓ Verified 8 cyl 4572 cc EFI 329 kg 1.60:1 ● Current
V12 600hp Verado 2024 600 4-stroke ✓ Verified 12 cyl 7600 cc EFI 572 kg 2.50:1 ● Current