Commercial Propulsion Engines
Overview
Engine uptime is critical for you, your crew, your clients and your bottom line. Industry-leading technology allows Caterpillar to create the most reliable commercial engines for a variety of applications. From tugs and container vessels to sport fishers, Cat marine engines have demonstrated their efficiency throughout the years. With remarkable reliability and durability, these engines will exceed your expectations for decades to come.
Docs & Links
Products
C7.1 Tier 3 / IMO II
- Power Range
- 280 bhp - 425 bhp (209 bkW - 317 bkW)
- Speed Range
- 2300 - 2700 rpm
- Emissions
- U.S. EPA Tier 3, IMO II, RCD II, China II
C9.3 ACERT
- Power Range
- 375-476 bhp (280-355 bkW)
- Speed Range
- 1800, 2100, 2300 rpm
- Rated Engine Speed
- 1800, 2100, 2300 rpm
C18 ACERT IMO II
- Power Range
- 454-715 bhp (339-533 bkW)
- Speed Range
- 1800-2100 rpm
- Emissions
- IMO II, EU IIIA
C18 ACERT Tier 3
- Power Range
- 469-1001 bhp (350-747 bkW)
- Speed Range
- 1800-2300 rpm
- Emissions
- EPA Tier 3 Commercial, IMO II, EU IW
C32 IMO II
- Power Range
- 660-1450 bhp (492-1081 bkW)
- Speed Range
- 1600-2300 rpm
- Emissions
- IMO II, EU IW
C32 ACERT Tier 3
- Power Range
- 750-1800 bhp (559-1342 bkW)
- Speed Range
- 1600-2300 rpm
- Emissions
- EPA Tier 3, IMO II, EU IW
C32 Tier 3 / IMO II
- Power Range
- 660-1600 bhp (492-1193 bkW)
- Speed Range
- 1600-2300 rpm
- Emissions
- U.S. EPA Tier 3 / IMO II emissions certified
C32 Tier 4 / IMO III
- 6 Brick Z-Flow - Length
- —147.7 in3751 mm
- Power Range
- 1000-1450 bhp (746-1081 bKW)
- Minimum Length
- —83.9 in2130 mm
3512C IMO II
- Power Range
- 1280-2551 bhp (955-1902 bkW)
- Speed Range
- 1200 rpm, 1600 rpm, 1800 rpm
- Emissions
- IMO II, EU IW
3512C Tier 3
- Power Range
- 1340-2366 bhp (1000-1765 bkW)
- Speed Range
- 1600-1800 rpm
- Emissions
- EPA Tier 3, IMO II
3512E Tier 4 / IMO III
- Power Range
- 1341-2549 bhp (1000-1901 bkW)
- Speed Range
- 1600-1800 rpm
- Emissions
- U.S. EPA Tier 4 Final, IMO III
3516C Tier 3
- Power Range
- 2131-2675 bhp (1590-1995 bkW)
- Speed Range
- 1600 rpm
- Emissions
- EPA Tier 3, IMO II
3516E Tier 4 / IMO III
- Power Range
- 2501-3386 bhp (1865-2525 bkW)
- Speed Range
- 1600-1800 rpm
- Emissions
- U.S. EPA Tier 4 Final, IMO III
C280-8 Tier 4/ IMO III
- Power Range
- 3299-3634 bhp (2460-2530 bkW)
- Speed Range
- 1000 rpm
- Emissions
- EPA Tier 4, IMO III
C280-12 Tier 4/ IMO III
- Power Range
- 4962-5444 bhp (3700-4060 bkW)
- Speed Range
- 1000 rpm
- Emissions
- EPA Tier 4, IMO II
C280-12
- Power Range
- 4640-6035 bhp (3460-4500 bkW)
- Speed Range
- 900 / 1,000 rpm
- Emissions
- IMO II U.S. EPA Tier 4, IMO III (Cat SCR required)
| 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 |
| 3516E | — | — | — |
| C280-12 | — | — | — |
Benefits & Features
Data not available.