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C18 ACERT IMO II

Commercial Propulsion Engines

The C18 ACERT marine propulsion engine has commercial application ratings of 454-715 bhp that meet IMO II & EU Stage IIA emissions regulations, and 469-715 bhp that meet EPA Tier 3, IMO II and EU Stage IIIA emissions regulations. In addition to the benefits the C18 ACERT's advanced marine engine technology brings, you welcome aboard legendary Cat product support. No matter where your spirit of adventure takes you, rest assured the Cat Dealer Network is close by.

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Power Range 454-715 bhp (339-533 bkW)
Speed Range 1800-2100 rpm
Emissions IMO II, EU IIIA
Aspiration TA, TTA

Availability Contact Dealer

FEATURES & BENEFITS

Cooling System

Heat exchanger and Keel cooled options for all ratings Read more

Emissions

IMO II and EU IWW compliant for all ratings Read more

Separate Circuit Aftercooling System

The primary advantage of the separate circuit aftercooling system (SCAC) is that no sea water circulates through the aftercooler. Read more

Additional Ratings

Specific ratings are available that meet IMO II emissions regulations and additional ratings are available that meet both EPA Tier 3 and IMO II emissions regulations. Read more

SPECIFICATIONS FOR C18 ACERT IMO II

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Power Rating
Power Range 454-715 bhp (339-533 bkW)
Engine Specifications
Speed Range 1800-2100 rpm
Emissions IMO II, EU IIIA
Aspiration TA, TTA
Bore 145 mm
Stroke 183 mm
Displacement 18.1 l
Rotation from Flywheel End Counterclockwise
Configuration In-line 6, 4-Stroke-Cycle Diesel
Dimensions & Weights
Minimum Dry Weight 1814 kg
Minimum Length 1854 mm
Maximum Length 19312 mm
Minimum Height 1198 mm
Maximum Height 1300 mm
Minimum Width 1134 mm
Maximum Width 1204 mm
Maximum Dry Weight 1950 kg

SELECT MODELS TO COMPARE

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Length 1095 mm
Height 876 mm
Minimum Width 798 mm
Configuration In-line 6, 4-stroke-cycle diesel
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Power Range 775-1100 bhp (578-820 bkW)
Speed Range 1200-1600 rpm
Emissions IMO II, EU IW
Aspiration TTA
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3516B

Power Range 1650-3000 bhp (1230-2237 bkW)
Speed Range 1200-1800 rpm
Emissions IMO II
Aspiration TTA
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3406C

Power Range 365-400 bhp (272-298 bkW)
Speed Range 1800 rpm
Emissions Non-Certified
Aspiration TA
Commercial Propulsion Engines

C32 Tier 4 / IMO III

6 Brick Z-Flow - Length 3751 mm
Power Range 1000-1450 bhp (746-1081 bKW)
Minimum Length 2130 mm
6 Brick Z-Flow - Height 597 mm
Commercial Propulsion Engines

C175-16

Power Range 2683-3420 bhp (2001-2550 bkW)
Speed Range 1600-1800 rpm
Emissions IMO II
Aspiration TA
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3508B

Power Range 775-1500 bhp (578-1118 bkW)
Speed Range 1200-1925 rpm
Emissions IMO I
Aspiration TTA
Commercial Propulsion Engines

C9.3 ACERT

Power Range 375-476 bhp (280-355 bkW)
Speed Range 1800, 2100, 2300 rpm
Emissions IMO II, U.S. EPA Tier 3, China Stage II
Aspiration Turbocharged-aftercooled
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