New CAT Equipment

3512C Propulsion Engine (IMO II)

The Cat 3512C marine propulsion engine makes your investment work harder. Through a wide range of available power ratings (including High Displacement ratings), no required aftertreatment technology, and nominal rated BSFC fuel consumption - it will drive down your total cost of ownership. With a redesigned piston bowl shape to improve combustion, and improved fuel delivery, this engine is IMO II emissions compliant and committed to sustainable environmental development. Single-source support, the Caterpillar warranty, and industry-leading one-year warranty on parts make the 3512C a fully integrated marine power solution.

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Product Specs

Power Rating

Power Range 1280-2551 bhp (955-1902 bkW)

Engine Specifications

Speed Range 1200 rpm, 1600 rpm, 1800 rpm
Emissions IMO II, EU IW
Aspiration TTA
Bore 6.69 in
Stroke 7.48 in
Displacement 3161 in³
Rotation from Flywheel End Counterclockwise or Clockwise
Configuration Vee 12, 4-Stroke-Cycle Diesel
Displacement - HD 3574 in³
Stroke - HD 8.5 in

Dimensions & Weights

Maximum Length 105.1 in
Maximum Width 87.9 in
Minimum Dry Weight 14400 lb
Minimum Width 80.2 in
Minimum Height 75 in
Minimum Length 102 in
Maximum Height 88.3 in
Maximum Dry Weight 16340 lb