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 Tier 3 / IMO II | 280 bhp - 425 bhp (209 bkW - 317 bkW) | 2300 - 2700 rpm | U.S. EPA Tier 3, IMO II, RCD II, China II |
| C9.3 ACERT | 375-476 bhp (280-355 bkW) | 1800, 2100, 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 ACERT IMO II | 454-715 bhp (339-533 bkW) | 1800-2100 rpm | IMO II, EU IIIA |
| C18 ACERT Tier 3 | 469-1001 bhp (350-747 bkW) | 1800-2300 rpm | EPA Tier 3 Commercial, IMO II, EU IW |
| 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 IMO II | 1280-2551 bhp (955-1902 bkW) | 1200 rpm, 1600 rpm, 1800 rpm | IMO II, EU IW |
| 3512C Tier 3 | 1340-2366 bhp (1000-1765 bkW) | 1600-1800 rpm | EPA Tier 3, IMO II |
| 3512E Tier 4 / IMO III | 1341-2549 bhp (1000-1901 bkW) | 1600-1800 rpm | U.S. EPA Tier 4 Final, IMO III |
| 3516C IMO II | 1650-3386 bhp (1230-2525 bkW) | 1200-1800 rpm | IMO II |
| 3516C Tier 3 | 2131-2675 bhp (1590-1995 bkW) | 1600 rpm | EPA Tier 3, IMO II |
| 3516E Tier 4 / IMO III | 2501-3386 bhp (1865-2525 bkW) | 1600-1800 rpm | U.S. EPA Tier 4 Final, IMO III |
| C280-6 | 2320-2722 bhp (1730-2030 bkW) | 900-1000 rpm | IMO II |
| C280-8 | 3084-3393 bhp (2300-2530 bkW) | 900 rpm | IMO II |
| C280-8 Tier 4/ IMO III | 3299-3634 bhp (2460-2530 bkW) | 1000 rpm | EPA Tier 4, IMO III |
| C280-12 | 4640-5096 bhp (3460-3800 bkW) | 900 rpm | IMO II |
| C280-12 Tier 4/ IMO III | 4962-5444 bhp (3700-4060 bkW) | 1000 rpm | EPA Tier 4, IMO II |
| C280-16 | 6169-7577 bhp (4600-5650 bkW) | 900-1000 rpm | IMO II |
| Model | Power Range | Speed Range | Emissions |
|---|---|---|---|
| C7.1 | 400 bhp - 500 bhp (298 bkW - 373 bkW) | 2900 rpm | IMO II, U.S. EPA Tier 3, RCD II, China II |
| C12 | 578-609 mhp (570-600 bhp) | — | — |
| C12 ACERT | 660-705 bhp (492-526 bkW) | — | — |
| C18 ACERT Tier 3 | 814-1015 mhp, 803-1001 bhp, 599-747 bkW | — | — |
| C18 ACERT Tier 3 Recreational | 1015-1150 mhp, 1001-1136 bhp, 747-847 bkW | — | — |
| C32 | 1600-1900 bhp (1193-1417 bkW) | — | — |
| 3512C HD | 1340-2366 bhp (1000-1765 bkW) | — | — |
| 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 | — | — | — |
| C9.3 Marine Generator Set | — | — | Inline 6, 4-Stroke Cycle diesel |
| C18 (SRMP) Marine Generator Set | — | — | 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 |
| 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 Tier 3 / IMO II | 208 bkW (280 bhp) @ 2300 rpm | —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 IMO II | — | —73 in1854 mm | In-Line 6, 4-Stroke-Cycle Diesel |
| C18 Tier 3 | — | —73 in1854 mm | In-Line 6, 4-Stroke-Cycle Diesel |
| C32 IMO II | — | — | Vee 12, 4-Stroke-Cycle Diesel |
| C32 Tier 3 | — | — | Vee 12, 4-Stroke-Cycle Diesel |
| C32 Tier 3 / IMO II | — | — | Vee 12, 4-stroke-cycle diesel |
| C32 IMO III | — | — | Vee 12, 4-stroke-cycle diesel |
| C32 Tier 4 / IMO III | — | — | Vee 12, 4-stroke-cycle diesel |
| 3512E | 732-2399 bhp (546-1789 bkW) | — | Vee 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 |