C32B

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.

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)

Documents & Brochures

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

Additional information

Offering Type

Ratings - Power Range

1800-2400 bhp (1342-1790 bkW)

Engine - Speed Range

2300 rpm

Engine - Emissions

IMO II/III, U.S. EPA Tier 3 (recreational), RCD, China II

Engine - Aspiration

Sequential Turbocharged – aftercooled

Engine - Bore

145.0 mm ( 5.71 in )

Engine - Stroke

162.0 mm ( 6.38 in )

Engine - Displacement

32.1 l ( 1959.0 in³ )

Engine - Rotation from Flywheel End

Counterclockwise

Engine - Configuration

VEE 12, 4-Stroke Cycle diesel

Dimensions & Weights - Dry Weight

3509.0 kg ( 7736.0 lb )

Dimensions & Weights - Length

2231.0 mm ( 87.8 in )

Dimensions & Weights - Width

1474.0 mm ( 58.0 in )

Dimensions & Weights - Height

1478.0 mm ( 58.1 in )

Engine - Flywheel Housing

SAE No. O

Engine - Cooling

SWAC (Seawater Aftercooler)

Engine - Governor

Electronic (ADEM VI)

Engine - Oil Change Interval

250 hrs

Engine - Refill Capacity

Lube Oil System w/ oil filter change: 76 L (20 gal)

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