Marine Engines for Sale

When you’re working on a commercial boat , you need dependable and reliable marine power. You can’t afford to be down in open waters. It’s expensive and dangerous to the crew.

You can count on Depco to provide you with marine engines and transmissions to give you peace of mind. All of our units come with a warranty and quality assured Depco seal.

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Showing all 33 results

  • Good Used Caterpillar 3516B HD SCAC 2260HP Diesel Marine Engine

    Engine Model: 3516B HD SCAC
    RPM: 1600
    Fuel: Diesel
    HP: 2260
    Depco Item # 13580
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  • Rebuilt Caterpillar 3516B HD SCAC 2260HP Diesel Marine Engine

    Engine Model: 3516B HD SCAC
    RPM: 1600
    Fuel: Diesel
    HP: 2260
    Depco Item # 13956
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  • New Surplus Caterpillar 3516C 2000HP Diesel Marine Engine

    Engine Model: 3516C
    RPM: 1600
    Fuel: Diesel
    HP: 2000
    Depco Item # 15766
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  • New Surplus Caterpillar 3516C 2000HP Diesel Marine Engine

    Engine Model: 3516C
    RPM: 1600
    Fuel: Diesel
    HP: 2000
    Depco Item # 15769
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  • New Surplus Caterpillar 3516C 2000HP Diesel Marine Engine

    Engine Model: 3516C
    RPM: 1600
    Fuel: Diesel
    HP: 2000
    Depco Item # 15334
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  • New Surplus Caterpillar 3516C 2000HP Diesel Marine Engine

    Engine Model: 3516C
    RPM: 1600
    Fuel: Diesel
    HP: 2000
    Depco Item # 15335
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  • New Surplus Caterpillar 3512C 1920HP Diesel Marine Engine

    Engine Model: 3512C
    RPM: 1800
    Fuel: Diesel
    HP: 1920
    Depco Item # 15094
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  • New Surplus Cummins KTA50-M2 1800HP Diesel Marine Engine

    Engine Model: KTA50-M2
    RPM: 1900
    Fuel: Diesel
    HP: 1800
    Depco Item # 15139
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  • High Hour Runner Caterpillar 3512B 1575HP Diesel Marine Engine

    Engine Model: 3512B
    RPM: 1600
    Fuel: Diesel
    HP: 1575
    Depco Item # 14642
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  • Low Hour Caterpillar 3516 DITA 1550HP Diesel Marine Engine

    Engine Model: 3516 DITA
    RPM: 1600
    Fuel: Diesel
    HP: 1550
    Depco Item # 15367
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  • Core Caterpillar 3512B 1350HP Diesel Marine Engine

    Engine Model: 3512B
    RPM: 1300
    Fuel: Diesel
    HP: 1350
    Depco Item # 09453
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  • Good Used Caterpillar D399 TA 1125HP Diesel Marine Engine

    Engine Model: D399 TA
    RPM: 1225
    Fuel: Diesel
    HP: 1125
    Depco Item # 15274
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  • High Hour Runner Cummins KTA38-M 940HP Diesel Marine Engine

    Engine Model: KTA38-M
    RPM: 1800
    Fuel: Diesel
    HP: 940
    Depco Item # 15963
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  • High Hour Runner Caterpillar 3412 DITA 671HP Diesel Marine Engine

    Engine Model: 3412 DITA
    RPM: 1800
    Fuel: Diesel
    HP: 671
    Depco Item # 15988
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  • Core Caterpillar 3412DITTA 625HP Diesel Marine Engine

    Engine Model: 3412DITTA
    RPM: 1800
    Fuel: Diesel
    HP: 625
    Depco Item # 15990
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  • Good Used Caterpillar 3412DITTA 625HP Diesel Marine Engine

    Engine Model: 3412DITTA
    RPM: 1800
    Fuel: Diesel
    HP: 625
    Depco Item # 15989
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  • High Hour Runner Caterpillar 3412 DITA 624HP Diesel Marine Engine

    Engine Model: 3412 DITA
    RPM: 1800
    Fuel: Diesel
    HP: 624
    Depco Item # 15841
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  • High Hour Runner Caterpillar 3412 DITA 624HP Diesel Marine Engine

    Engine Model: 3412 DITA
    RPM: 1800
    Fuel: Diesel
    HP: 624
    Depco Item # 15987
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  • High Hour Runner Caterpillar 3412 DIT 615HP Diesel Marine Engine

    Engine Model: 3412 DIT
    RPM: 1800
    Fuel: Diesel
    HP: 615
    Depco Item # 15965
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  • High Hour Runner Caterpillar 3412 DIT 540HP Diesel Marine Engine

    Engine Model: 3412 DIT
    RPM: 1800
    Fuel: Diesel
    HP: 540
    Depco Item # 15786
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  • High Hour Runner Caterpillar 3412 DIT 540HP Diesel Marine Engine

    Engine Model: 3412 DIT
    RPM: 1800
    Fuel: Diesel
    HP: 540
    Depco Item # 15787
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  • Rebuilt Caterpillar 3412 DIT 540HP Diesel Marine Engine

    Engine Model: 3412 DIT
    RPM: 1800
    Fuel: Diesel
    HP: 540
    Depco Item # 14834
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  • Good Used Caterpillar 3412C DITA 540HP Diesel Marine Engine

    Engine Model: 3412C DITA
    RPM: 1800
    Fuel: Diesel
    HP: 540
    Depco Item # 15843
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  • High Hour Runner Caterpillar 3408 DITA 480HP Diesel Marine Engine

    Engine Model: 3408 DITA
    RPM: 1800
    Fuel: Diesel
    HP: 480
    Depco Item # 15788
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  • High Hour Runner Caterpillar 3408 DITA 480HP Diesel Marine Engine

    Engine Model: 3408 DITA
    RPM: 1800
    Fuel: Diesel
    HP: 480
    Depco Item # 15789
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  • New Surplus Caterpillar C18 DITA 479HP Diesel Marine Engine

    Engine Model: C18 DITA
    RPM: 1800
    Fuel: Diesel
    HP: 479
    Depco Item # 15387
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  • Good Used Caterpillar 3406 DITA 462HP Diesel Marine Engine

    Engine Model: 3406 DITA
    RPM: 1800
    Fuel: Diesel
    HP: 462
    Depco Item # 14942
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  • High Hour Runner Caterpillar 3408 DITA 443HP Diesel Marine Engine

    Engine Model: 3408 DITA
    RPM: 1800
    Fuel: Diesel
    HP: 443
    Depco Item # 15811
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  • High Hour Runner Caterpillar 3408 DITA 402HP Diesel Marine Engine

    Engine Model: 3408 DITA
    RPM: 1800
    Fuel: Diesel
    HP: 402
    Depco Item # 15810
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  • In-Framed Detroit Diesel 12V71 NA 350HP Diesel Marine Engine

    Engine Model: 12V71 NA
    RPM: 1800
    Fuel: Diesel
    HP: 350
    Depco Item # 13547
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  • High Hour Runner Caterpillar 3406B 322HP Diesel Marine Engine

    Engine Model: 3406B
    RPM: 1800
    Fuel: Diesel
    HP: 322
    Depco Item # 15475
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  • High Hour Runner Caterpillar 3412 DIT 300HP Diesel Marine Engine

    Engine Model: 3412 DIT
    RPM: 1640
    Fuel: Diesel
    HP: 300
    Depco Item # 15842
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  • High Hour Runner Caterpillar 3304 DIT 127HP Diesel Marine Engine

    Engine Model: 3304 DIT
    RPM: 1500
    Fuel: Diesel
    HP: 127
    Depco Item # 15477
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Since our beginning in 1991, we’ve been buying and selling marine propulsion and auxiliary engines, generators, transmissions, reduction gears and accessories.

We know and understand the marine market and we’re knowledgeable in the product lines and applications. Located in Houston on the gulf coast, we have easy access to the port of Houston.

We carry inventory for a variety of marine applications including: towing, barges, supply boats, crew boats, construction, dredging, fishing or other commercial work boats.

Our real-time online inventory system allows you to quickly search for any unit you need.

If we don’t have it listed, give us a call. We can find it. We do it every day for customers.

In fact, Miami's Intertech supply company contacted Depco with a desperate need for a 3516b marine propulsion engine. It’s Venezuelan customer had a catastrophic failure on a harbor tug boat and was down. We found an engine in Australia that matched the customer requirements.

The entire transaction was completed in just two weeks.

We’ve rebuilt marine engines and customized units. Plus, we buy and sell both new, used and surplus marine power units.

When you buy from Depco, you can buy with confidence.

Whether you’re ready to sell or buy, start with Depco.