3512B

Commercial Propulsion Engines

The Cat 3512B marine engine includes the Advanced Diesel Engine Management System II, Control Monitoring Protection System, Customer Communication Module, and Digital Voltage Regulator. Benefits include improved fuel economy, reduced visible and gaseous emissions, enhanced diagnostic and monitoring capabilities, and increased rated output with no reduction in reliability.

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Power Range 1100-2250 bhp (820-1678 bkW)

Speed Range 1200-1925 rpm

Emissions IMO I

Aspiration TTA

Availability

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3512B

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FEATURES & BENEFITS

Electronic Unit Injector fuel system featuring 10-20 percent higher injection pressure than other 3500 Family engines

Caterpillar ADEM II Electronic Engine Control/Monitoring System that provides infinitely variable injection timing and a state-of-the-art monitoring and protection system with self-diagnosing electronic sensors

“Deep Crater/Low Crevice Volume” twopiece articulated piston design with forged steel crown and cast aluminum skirt that enhance combustion efficiency to provide improved fuel efficiency and lower levels of gaseous and visible emissions

Larger diameter (98 mm vs. 92 mm bore) camshaft for higher injection pressures, shorter injection durations, and less gear train torsional vibration

Strengthened fuel injection actuation system and rear gear train to maintain reliability and durability while providing higher injection pressures

Center-mounted low inertia turbochargers (four on 3512B and 3516B; two on 3508B) on EPG models

Dual rear mounted turbochargers on all marine configurations

Separate circuit or sea water aftercooling to supply the optimum temperature air to the combustion chamber to reduce emissions and fuel consumption and maximize power output

Streamlined intake and exhaust manifolds to reduce parasitic pumping losses and increase combustion efficiency

SPECIFICATIONS FOR 3512B

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Power Rating

Power Range

1100-2250 bhp (820-1678 bkW)

Engine Specifications

Speed Range	1200-1925 rpm
Emissions	IMO I
Aspiration	TTA
Bore	170 mm
Stroke	190 mm
Displacement	51.8 l
Rotation from Flywheel End	Counterclockwise or Clockwise
Configuration	Vee 12, 4-Stroke-Cycle Diesel

Dimensions & Weights

Minimum Dry Weight	6537 kg
Minimum Length	2819 mm
Maximum Length	121 mm
Minimum Height	1806 mm
Maximum Height	2091 mm
Minimum Width	1703 mm
Maximum Width	1785 mm
Maximum Dry Weight	6537 kg

SELECT MODELS TO COMPARE

Commercial Propulsion Engines

C280-12

Power Range 4640-5096 bhp (3460-3800 bkW)

Speed Range 900 rpm

Emissions IMO II

Aspiration TTA

Compare models

Commercial Propulsion Engines

3508B

Power Range 775-1500 bhp (578-1118 bkW)

Speed Range 1200-1925 rpm

Emissions IMO I

Aspiration TTA

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Commercial Propulsion Engines

C18 ACERT IMO II

Power Range 454-715 bhp (339-533 bkW)

Speed Range 1800-2100 rpm

Emissions IMO II, EU IIIA

Aspiration TA, TTA

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Commercial Propulsion Engines

3516E Tier 4 / IMO III

Power Range 2501-3386 bhp (1865-2525 bkW)

Speed Range 1600-1800 rpm

Emissions U.S. EPA Tier 4 Final, IMO III

Aspiration TTA

Compare models

Commercial Propulsion Engines

C280-12 Tier 4/ IMO III

Power Range 4962-5444 bhp (3700-4060 bkW)

Speed Range 1000 rpm

Emissions EPA Tier 4, IMO II

Aspiration TTA

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Commercial Propulsion Engines

3512C Tier 3

Power Range 1340-2366 bhp (1000-1765 bkW)

Speed Range 1600-1800 rpm

Emissions EPA Tier 3, IMO II

Aspiration TTA

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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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Commercial Propulsion Engines

3516C Tier 3

Power Range 2131-2675 bhp (1590-1995 bkW)

Speed Range 1600 rpm

Emissions EPA Tier 3, IMO II

Aspiration TTA

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PAYMENT & DELIVERY

Payment – Lead time - Delivery

3512B

Commercial Propulsion Engines

3512B

FEATURES & BENEFITS

SPECIFICATIONS FOR 3512B

Power Rating

Engine Specifications

Dimensions & Weights

SELECT MODELS TO COMPARE

C280-12

3508B

C18 ACERT IMO II

3516E Tier 4 / IMO III

C280-12 Tier 4/ IMO III

3512C Tier 3

C175-16

3516C Tier 3

SEND REQUEST

GET A QUOTE

PAYMENT & DELIVERY

Select Up to 3 Models to Compare

FEATURES & BENEFITS

Electronic Unit Injector fuel system featuring 10-20 percent higher injection pressure than other 3500 Family engines

FEATURES & BENEFITS

Caterpillar ADEM II Electronic Engine Control/Monitoring System that provides infinitely variable injection timing and a state-of-the-art monitoring and protection system with self-diagnosing electronic sensors

FEATURES & BENEFITS

“Deep Crater/Low Crevice Volume” twopiece articulated piston design with forged steel crown and cast aluminum skirt that enhance combustion efficiency to provide improved fuel efficiency and lower levels of gaseous and visible emissions

FEATURES & BENEFITS

Larger diameter (98 mm vs. 92 mm bore) camshaft for higher injection pressures, shorter injection durations, and less gear train torsional vibration

FEATURES & BENEFITS

Strengthened fuel injection actuation system and rear gear train to maintain reliability and durability while providing higher injection pressures

FEATURES & BENEFITS

Center-mounted low inertia turbochargers (four on 3512B and 3516B; two on 3508B) on EPG models

FEATURES & BENEFITS

Dual rear mounted turbochargers on all marine configurations

FEATURES & BENEFITS

Separate circuit or sea water aftercooling to supply the optimum temperature air to the combustion chamber to reduce emissions and fuel consumption and maximize power output

FEATURES & BENEFITS

Streamlined intake and exhaust manifolds to reduce parasitic pumping losses and increase combustion efficiency

Select Up to
3 Models to Compare