Cat C32 Tier 4 / IMO III

Commercial propulsion engines


About the Cat C32 Tier 4 / IMO III


Cat C32 Propulsion Engine (US EPA Tier 4 / IMO III)


Clean Emissions Module (CEM) - Dimensions
6 Brick Z-Flow - Length 147.7 in
6 Brick Z-Flow - Height 23.5 in
6 Brick Z-Flow - Width 43.5 in
6 Brick Z-Flow - Weight 1246 lb
6 Brick U-Flow - Length 85 in
6 Brick U-Flow - Height 23.5 in
6 Brick U-Flow - Width 56.9 in
6 Brick U-Flow - Weight 1235 lb
Dosing Cabinet - Length 37.4 in
Dosing Cabinet - Height 22.8 in
Dosing Cabinet - Width 18.8 in
Dosing Cabinet - Weight 209 lb
Dimensions & Weights
Minimum Length 83.9 in
Maximum Length 89.8 in
Minimum Height 59.3 in
Maximum Height 63.5 in
Minimum Width 57.1 in
Maximum Width 57.3 in
Minimum Engine Dry Weight 6950 lb
Maximum Engine Dry Weight 7160 lb
Engine Specifications
Configuration Vee 12, 4-stroke-cycle diesel
Emissions U.S. EPA Tier 4 Final certified IMO III emissions certified (SCR required)
Rated Engine Speed 1600-2150 rpm
Bore 5.71 in
Stroke 6.38 in
Displacement 1959 in³
Aspiration Turbocharged-aftercooled aspiration
Governor Electronic (A5 ECM)
Refill Capacity Lube Oil System w/ oil filter change: 146 L (38.5 gal) - deep pan
Oil Change Interval 1000 hrs - deep pan
Cooling Heat exchanger or keel cooled
Flywheel Housing SAE No. 0 with SAE No. 18 flywheel (136 teeth)
Rotation Counterclockwise from flywheel end


Air Inlet System

Air Inlet System
Separate-circuit aftercooling – no sea water in aftercooler


Utilizes SCR Technology to enable U.S. EPA Tier 4 Final emission regulations compliance while lowering operational costs, IMO III emissions compliant

Control Strategy

Control Strategy
Utilizes closed loop air assisted DEF dosing control strategy that delivers: Highest efficiency mixing and control to lower operational costs, Extends emissions useful life, Ensures compliance, Flexible to urea quality

Fuel System

Fuel System
Enhanced control of fuel injection optimized through crank timing and the A5 ECM technology

Power Reserve

Power Reserve
Industry leading power reserve


Wide range of available Marine Society certifications


Industry-leading warranty coverage for factory packaged components


Global dealer network for service in any location

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