Industrial Engines for Sale

Depco has industrial engines in stock and ready to power your application. We offer industrial diesel engines and industrial natural gas engines for sale, including new, used, surplus, and rebuilt units, all available for fast shipment worldwide.

Whether you’re sourcing a replacement engine or building a new power system, our inventory supports demanding commercial and industrial applications across multiple industries. We regularly stock equipment from leading manufacturers including Caterpillar, Cummins, Detroit Diesel, John Deere, Perkins, and more.

Every engine undergoes Depco’s comprehensive inspection, testing, and servicing process to help ensure dependable performance and compliance with manufacturer specifications. Our team is available to help you select the right engine based on horsepower, fuel type, duty rating, and application requirements.


Jump to the Industrial Engines Buying Guide & FAQs ↓

All units selected for special pricing include the Depco guarantee and 30-day warranty on used inventory. Units will be fully serviced and tested to factory specifications.Liquidations units are sold as-is. All sales are final. Please read the notes section in the item description for details.

  • Two red industrial diesel engines with large gray intake pipes

    High Hour Caterpillar 3512C 2250HP Tier 2 Engine

    Engine Model: 3512C
    RPM:
    Fuel: Diesel
    HP: 2250
    Hours: 19193 Since New
    Depco Item # 19163

    Price: $59,500
  • Two red industrial diesel engines with large gray intake pipes

    High Hour Caterpillar 3512C 2250HP Tier 2 Engine

    Engine Model: 3512C
    RPM:
    Fuel: Diesel
    HP: 2250
    Hours: 21497 Since New
    Depco Item # 19165

    Price: $59,500
  • Industrial diesel engine on a trailer; large round flywheel housing front

    Rebuilt Caterpillar 3512C HD 1476HP Tier 2 Engine

    Engine Model: 3512C HD
    RPM:
    Fuel: Diesel
    HP: 1476
    Hours: 0
    Depco Item # 20376

    Price: $219,900
  • Top End Overhaul Caterpillar 3512C 1476HP Tier 2 Engine

    Top End Overhaul Caterpillar 3512C 1476HP Tier 2 Engine

    Engine Model: 3512C
    RPM:
    Fuel: Diesel
    HP: 1476
    Hours: 0
    Depco Item # 20377

    Price: $175,000
  • Caterpillar 3512C HD 1475HP Tier 2 Engine

    Rebuilt Caterpillar 3512C HD 1475HP Tier 2 Engine

    Ready to Ship
    Engine Model: 3512C HD
    RPM:
    Fuel: Diesel
    HP: 1475
    Hours: 0
    Depco Item # 19986

    Price: $219,900
  • New Surplus Caterpillar C15 540HP Tier 4 Engine

    New Surplus Caterpillar C15 540HP Tier 4 Engine

    Ready to Ship
    Engine Model: C15
    RPM:
    Fuel: Diesel
    HP: 540
    Hours: 0
    Depco Item # 18465

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Industrial Engine Buying Guide

Choosing the right industrial engine starts with understanding your application requirements, duty cycle, operating environment, and fuel type. Depco supplies industrial diesel and natural gas engines for demanding commercial and industrial applications.

Key specifications to evaluate include:

• Horsepower and torque requirements
• RPM and duty rating (standby, prime, or continuous)
• Fuel type (diesel vs. natural gas)
• Emissions tier and regulatory requirements
• Mounting configuration and auxiliary components

Used, Rebuilt & Refurbished Industrial Engines

Used and rebuilt industrial engines can provide excellent value when properly inspected, tested, and documented. Depco stocks a rotating inventory of used, surplus, and rebuilt engines ready to ship.

Common brands and applications include:

• Caterpillar industrial engines
• Cummins industrial engines
• Detroit Diesel engines
• John Deere and Perkins engines

Industrial Diesel & Natural Gas Engines

Depco offers industrial diesel engines and industrial natural gas engines suitable for generator drive applications, pumps, compressors, oil & gas operations, and heavy-duty industrial use. Our team can help verify compatibility based on horsepower, RPM, fuel type, and operating conditions.

Generator Engine Applications

Many industrial engines are used as prime movers for generator sets. Whether you need a generator engine for standby, prime, or continuous-duty power, Depco can help match the correct engine to your alternator and electrical requirements.

Industrial Engine FAQs

Below are answers to common questions about industrial engines, availability, and selection. If you don’t see your specific application listed, contact our team for assistance.

Do you sell industrial diesel and natural gas engines?
Yes. Depco stocks industrial diesel engines and industrial natural gas engines for sale, including new, used, surplus, and rebuilt units. Inventory varies by availability.

Are your industrial engines tested before sale?
Yes. All engines undergo inspection and testing as part of Depco’s certification process to help ensure reliable performance.

Do you have used industrial diesel engines for sale?
Yes. Depco regularly carries used industrial diesel engines, along with rebuilt and refurbished options.

What brands of industrial engines do you carry?
Depco commonly stocks engines from Caterpillar, Cummins, Detroit Diesel, John Deere, Perkins, and other manufacturers depending on current inventory.

Can you help me choose the right industrial engine?
Yes. Our team can assist with engine selection based on horsepower, duty rating, fuel type, and application requirements.