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.
Compare Models
Power Rating
Power Range
454-715 bhp (339-533 bkW)
454-715 bhp (339-533 bkW)
Engine Specifications
Speed Range
1800-2100 rpm
1800-2100 rpm
Emissions
IMO II, EU IIIA
IMO II, EU IIIA
Aspiration
TA, TTA
TA, TTA
Bore
5.7 in
145.0 mm
Stroke
7.2 in
183.0 mm
Displacement
1106.0 in³
18.1 l
Rotation from Flywheel End
Counterclockwise
Counterclockwise
Configuration
In-line 6, 4-Stroke-Cycle Diesel
In-line 6, 4-Stroke-Cycle Diesel
Dimensions & Weights
Minimum Dry Weight
4000.0 lb
1814.0 kg
Minimum Length
73.0 in
1854.0 mm
Maximum Length
76.0 in
19312.0 mm
Minimum Height
47.2 in
1198.0 mm
Maximum Height
51.2 in
1300.0 mm
Minimum Width
44.6 in
1134.0 mm
Maximum Width
47.4 in
1204.0 mm
Maximum Dry Weight
4299.0 lb
1950.0 kg