Marine Power Systems
Industry-leading technology allows Caterpillar to create the most reliable commercial engines for a variety of applications. From tugs and container vessels to yachts and sport fishers, Cat engines have demonstrated their efficiency countless times. With remarkable reliability and durability, these engines will exceed your expectations for decades.
Units:
| Model | Power Range | Speed Range | Emissions |
|---|---|---|---|
| C7.1 | 280 bhp - 425 bhp (209 bkW - 317 bkW) | 2300 - 2700 rpm | U.S. EPA Tier 3, IMO II, RCD II, China II |
| C9.3 | 375-476 | 1800 - 2300 rpm | IMO II, U.S. EPA Tier 3, China Stage II |
| C12 | 340-490 bhp (254-366 bkW) | 1800-2300 rpm | IMO I, IMO II |
| C18 | 454 - 803 bhp | 1800 - 2100 rpm | EPA Tier 3 Commercial, IMO II, EU IWW, China II |
| C32 IMO II | 660-1450 bhp (492-1081 bkW) | 1600-2300 rpm | IMO II, EU IW |
| 3406C | 365-400 bhp (272-298 bkW) | 1800 rpm | Non-Certified |
| C32 ACERT Tier 3 | 750-1800 bhp (559-1342 bkW) | 1600-2300 rpm | EPA Tier 3, IMO II, EU IW |
| C32 Tier 3 / IMO II | 660-1600 bhp (492-1193 bkW) | 1600-2300 rpm | U.S. EPA Tier 3 / IMO II emissions certified |
| C32 Tier 4 / IMO III | 1000-1450 bhp (746-1081 bKW) | 1600-2150 rpm | U.S. EPA Tier 4 Final certified IMO III emissions certified (SCR required) |
| 3512C | 1281 - 2552 bhp | 1200 - 1800 rpm | IMO II, China Stage II |
| 3512E | 1341-2549 bhp (1000-1901 bkW) | 1600-1800 rpm | U.S. EPA Tier 4 Final, IMO III |
| 3516C | 2000-3385 bhp (1492-2525 bkW) | 1200-1800 rpm | IMO II |
| 3516E | 2501-3386 bhp (1865-2525 bkW) | 1600 - 1800 rpm | U.S. EPA Tier 4, IMO III |
| C280-6 | 2320-2722 bhp (1730-2030 bkW) | 900-1000 rpm | IMO II |
| C280-8 | 3084-4023 bhp (2300-3000 bkW) | 900 - 1000 rpm | IMO II, IMO III/EPA Tier 4 |
| C280-16 | 6169-8046 bhp (4600-6000 bkW) | 900-1000 rpm | IMO II |
| 3516E | — | — | — |
| C280-12 | — | — | — |
| Model | Power Range | Speed Range | Emissions |
|---|---|---|---|
| C32B | 1800-2400 bhp (1342-1790 bkW) | 2300 rpm | IMO II/III, U.S. EPA Tier 3 (recreational), RCD, China II |
| C7.1 | 400 bhp - 500 bhp (298 bkW - 373 bkW) | — | — |
| C12 | 340 - 705 bhp (254 - 526 bkW) | 1800 - 2300 rpm | IMO I, IMO II |
| C18 | 814-1015 mhp, 803-1001 bhp, 599-747 bkW | 2100-2300 rpm | EPA Tier 3, IMO II, EU Stage IIIA |
| C18 Recreational | 1015-1150 mhp, 1001-1136 bhp, 747-847 bkW | 2300 rpm | EPA Tier 3, IMO II, EU IW |
| C32B | 2000 bhp (1491 bkW) | 2300 rpm | IMO II, U.S. EPA Tier 3 Recreational, RCD, China Stage II |
| C32 | 1600-1900 bhp (1193-1417 bkW) | 2300 rpm | IMO II, U.S. EPA Tier 3 Recreational, RCD, China Stage II |
| 3512C HD | 1340-2366 bhp (1000-1765 bkW) | 1600-1800 rpm | EPA Tier 3, IMO II |
| Model | Power Range | Emissions | Configuration |
|---|---|---|---|
| C4.4 (Electronic) | 65/75/99/118 ekW @ 1800 rpm (60 Hz), 65/80/99 ekW @ 1500 rpm (50 Hz) | U.S. EPA Tier 3 certified, EU Stage V certified | In-line 4, 4-stroke-cycle diesel |
| C1.5 | — | U.S. EPA Tier 3 | Inline 3, 4-Stroke Cycle diesel |
| C2.2 | — | U.S. EPA Tier 3 | Inline 4, 4-Stroke Cycle diesel |
| C4.4 | — | — | — |
| C7.1 (Electronic Control System) | — | IMO II, IMO III (SCR required) U.S. EPA Tier 3, EU Stage V, China II | Inline 6, 4-Stroke Cycle Diesel |
| C9.3 Marine Generator Set | — | — | Inline 6, 4-Stroke Cycle diesel |
| C18 | — | — | In-line 6, 4-Stroke-Cycle Diesel |
| C32 ACERT IMO II | — | — | — |
| C32 ACERT Tier 3 | — | — | — |
| C32 Tier 3 / IMO II | — | U.S. EPA Tier 3 / IMO II emissions certified | Vee-12, 4-stroke-Cycle-Diesel |
| C32 IMO III | — | IMO III emissions certified (SCR required) | Vee-12, 4-stroke-Cycle-Diesel |
| C32 Tier 4 / IMO III | — | U.S. EPA Tier 4 Final certified / IMO III emissions certified (SCR required) | Vee-12, 4-stroke-Cycle-Diesel |
| 3512C | — | — | Vee 12 4-Stroke-Cycle Diesel |
| C280-6 | — | — | — |
| C280-8 | — | — | — |
| C280-12 | — | — | — |
| C280-16 | — | — | — |
| Model | Power Range | Length | Configuration |
|---|---|---|---|
| C4.4 (Electronic) | 71/81/108/129 bkW @ 1800 rpm, 71/86/108 bkW @ 1500 rpm | —33.7 in856 mm | In-line 4, 4-stroke-cycle diesel |
| C7.1 (Electronic) | 109 - 218 bkW | —43.1 in1095 mm | In-line 6, 4-stroke-cycle diesel |
| C9.3 Auxiliary Engine | 292 bhp - 436 bhp (218 bkW - 325 bkW) | — | In-Line 6, 4-Stroke-Cycle Diesel |
| C18 | 404 - 803 hp | —73 in1854 mm | In-Line 6, 4-Stroke-Cycle Diesel |
| C32 IMO II | — | — | Vee 12, 4-Stroke-Cycle Diesel |
| C32 | — | — | Vee 12, 4-stroke-cycle diesel |
| 3512E | 732-2399 bhp (546-1789 bkW) | — | V 12, 4-Stroke-Cycle Diesel |
| 3516E | 787-3175 bhp (587-2368 bkW) | —146.6 in3724 mm | Vee 16, 4-Stroke-Cycle Diesel |
| C280 | — | — | In-Line 6, Vee 8, Vee 12, Vee 16, 4-Stroke-Cycle Diesel |