Ratings
| Power Range | 1800-2400 bhp (1342-1790 bkW) 1800-2400 bhp (1342-1790 bkW) |
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High Performance Propulsion and Maneuvering Solutions C32B
Request A Price Find DealerKey Specs
- Power Range
- 1800-2400 bhp (1342-1790 bkW)
- 1800-2400 bhp (1342-1790 bkW)
- Speed Range
- 2300 rpm
- 2300 rpm
- Emissions
- IMO II, U.S. EPA Tier 3 (recreational), RCD, China II
- IMO II, U.S. EPA Tier 3 (recreational), RCD, China II
Overview
With the introduction of the C32B product line in 2021, Caterpillar Marine now confirms the availability of the uprated Cat® C32B Marine Propulsion engine in 2025 mhp and 2433 mhp offerings. With 25% more peak power and high performance, this engine demonstrates great performance and efficiency, while also delivering noise reduction at lower engine speeds. This product meets IMO II and U.S. EPA Tier 3 (recreational) emissions standards and is perfectly suited for yachting applications. Governmental applications can also be a great fit for D-tier ratings. Please consult with your Cat Marine dealer regarding the use of E-tier ratings.
Features At A Glance
Key Features & Benefits
- Updated engine design to enable higher power density
- Noise reduction at low engine speeds (MEUI-C Fuel System)
- Updated engine electronic control module (ADEM VI)
- MCS certifications available
- Updated seawater aftercooler and HEX design
- Optimized sequential air system maximizes performance and torque range
- LH and RH service side options available
- No zinc anodes required (use vessel bonding system)
Product Specifications for C32B
Engine
| Speed Range | 2300 rpm 2300 rpm |
| Emissions | IMO II, U.S. EPA Tier 3 (recreational), RCD, China II IMO II, U.S. EPA Tier 3 (recreational), RCD, China II |
| Aspiration | Sequential Turbocharged - aftercooled Sequential Turbocharged - aftercooled |
| Bore | 5.71 in 145 mm |
| Stroke | 6.38 in 162 mm |
| Displacement | 1959 in³ 32.1 l |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Configuration | VEE 12, 4-Stroke Cycle diesel VEE 12, 4-Stroke Cycle diesel |
| Flywheel Housing | SAE No. O SAE No. O |
| Cooling | SWAC (Seawater Aftercooler) SWAC (Seawater Aftercooler) |
| Governor | Electronic (ADEM VI) Electronic (ADEM VI) |
| Oil Change Interval | 250 hrs 250 hrs |
| Refill Capacity | Lube Oil System w/ oil filter change: 76 L (20 gal) Lube Oil System w/ oil filter change: 76 L (20 gal) |
Dimensions & Weights
| Dry Weight | 7736 lb 3509 kg |
| Length | 87.8 in 2231 mm |
| Width | 58 in 1474 mm |
| Height | 58.1 in 1478 mm |
C32B Standard Equipment
STANDARD EQUIPMENT
- ADEM VI Electronic Control Module
- Air Cleaner / Closed Crankcase Ventilation
- Front and Rear Seawater Pumps
- Sea Water Aftercooler
- Titanium Plate Heat Exchanger
- Gear-driven JW and SW pumps
- Water-cooled Exhaust Manifolds and Turbochargers
- MEUI-C Fuel System
- 250-hr Oil Pan (Shallow Sump)
- RH or LH Service Side Options
C32B Optional Equipment
OPTIONAL ATTACHEMENTS
- 120V or 240V Jacket Water Heater
- SAE A or B PTO (RH rear)
- 75A, 105A or 175A Alternator
- Heat Shielding
- Cosmetic Engine Cover
- Electric Fuel Priming Pump
- Duplex Lube Oil and Fuel Filters
- Deep Sump Oil Pan
- Marine Alarm & Protection
See how C32B compares against frequently compared products.
Marine Power Systems
C32B
Selected
- Power Range
- 1800-2400 bhp (1342-1790 bkW)
- 1800-2400 bhp (1342-1790 bkW)
- Speed Range
- 2300 rpm
- 2300 rpm
- Emissions
- IMO II, U.S. EPA Tier 3 (recreational), RCD, China II
- IMO II, U.S. EPA Tier 3 (recreational), RCD, China II
Marine Power Systems
C7.1
- Power Range
- 400 bhp - 500 bhp (298 bkW - 373 bkW)
- 400 bhp - 500 bhp (298 bkW - 373 bkW)
- Speed Range
- 2900 rpm
- 2900 rpm
- Emissions
- IMO II, U.S. EPA Tier 3, RCD II, China II
- IMO II, U.S. EPA Tier 3, RCD II, China II
Marine Power Systems
C12
- Power Range
- 578-609 mhp (570-600 bhp)
- 578-609 mhp (570-600 bhp)
- Speed Range
- 2300 rpm
- 2300 rpm
- Emissions
- IMO I
- IMO I
