Generator and Diesel Engine Parts

Depco stocks a wide range of generator repair parts and diesel engine spare parts to support industrial, commercial, and power generation equipment. Our inventory includes essential power system components, engine maintenance parts, and related power generation parts used for repairs, rebuilds, and ongoing service.

Customers rely on Depco as an experienced source for industrial diesel parts, generator engine components, and power system hardware supporting major engine and generator platforms. We carry new, used, rebuilt, and surplus parts from trusted manufacturers to help minimize downtime and keep critical equipment operating reliably.

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.

  • Used Caterpillar 3508, 3512, 3516 Air Cleaner

    Used Caterpillar 3508, 3512, 3516 Air Cleaner

    Condition: Used
    Model: 3508, 3512, 3516
    Depco Item # 20258

  • New Caterpillar  Air Inlet Components

    New Caterpillar Air Inlet Components

    Condition: New
    Model:
    Depco Item # 20278

  • New Caterpillar  Air Shutoff

    New Caterpillar Air Shutoff

    Condition: New
    Model:
    Depco Item # 20270

  • Caterpillar  Air Shutoff

    Caterpillar Air Shutoff

    Condition:
    Model:
    Depco Item # 20279

  • New Surplus  GSEV Base Fuel Tank

    New Surplus GSEV Base Fuel Tank

    Condition: New Surplus
    Model: GSEV
    Depco Item # 16016

  • Good Used Caterpillar 3512 Block

    Good Used Caterpillar 3512 Block

    Condition: Rebuilt
    Model: 3512
    Depco Item # 19328

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  • New Surplus Caterpillar 208v Jacket Water Heater Block Heater

    New Surplus Caterpillar 208v Jacket Water Heater Block Heater

    Condition: New Surplus
    Model: 208v Jacket Water Heater
    Depco Item # 20246

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    New Breaker

    Condition: New
    Model: 6168894
    Depco Item # 20176

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    New Breaker

    Condition: New
    Model: T6NQ800CW
    Depco Item # 20162

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    New Breaker

    Condition: New
    Model: TSNQ400CW
    Depco Item # 20171

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    New Breaker

    Condition: New
    Model: TSNQ400CW
    Depco Item # 20177

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    Tmax XT7S M 800 Breaker

    Condition:
    Model: Tmax XT7S M 800
    Depco Item # 20178

  • New Square D Schneider Electric PowerPacT 800 Amp Circuit Breaker, PJP36080U31FPJP36080U31F

    New PJ800 Breaker

    Condition: New
    Model: PJ800
    Depco Item # 20227

  • SACE EMAX2 E2.2H-A 2000

    New SACE EMAX2 E2.2 H 2000 Breaker

    Condition: New
    Model: SACE EMAX2 E2.2 H 2000
    Depco Item # 20234

  • New General Electric TJK626f000 Breaker

    New General Electric TJK626f000 Breaker

    Condition: New
    Model: TJK626f000
    Depco Item # 20294

  • New  LXD63B500 Breaker

    New LXD63B500 Breaker

    Condition: New
    Model: LXD63B500
    Depco Item # 20295

  • New Square D/Schneider MGL36600 Breaker

    New Square D/Schneider MGL36600 Breaker

    Condition: New
    Model: MGL36600
    Depco Item # 20310

  • New   Chassis

    New Chassis

    Condition: New
    Model:
    Depco Item # 20419

  • Used  JR-770-40A3 Chassis

    Used JR-770-40A3 Chassis

    Condition: Used
    Model: JR-770-40A3
    Depco Item # 20647

  • Good Used Caterpillar EMCP Control Panel

    Good Used Caterpillar EMCP Control Panel

    Condition: Good Used
    Model: EMCP
    Depco Item # 20212

  • Used Caterpillar  Control Panel

    Used Caterpillar Control Panel

    Condition: Used
    Model:
    Depco Item # 20586

  • Used Caterpillar  Control Panel

    Used Caterpillar Control Panel

    Condition: Used
    Model:
    Depco Item # 20587

  • Used Caterpillar  Control Panel

    Used Caterpillar Control Panel

    Condition: Used
    Model:
    Depco Item # 20588

  • New Caterpillar 3500 Series Cooling System Components

    New Caterpillar 3500 Series Cooling System Components

    Condition: New
    Model: 3500 Series
    Depco Item # 20275

  • New Cummins K19 Crankshaft

    New Cummins K19 Crankshaft

    Condition: New
    Model: K19
    Depco Item # 09410

  • New Caterpillar D399 Crankshaft

    New Caterpillar D399 Crankshaft

    Condition: Like New
    Model: D399
    Depco Item # 17858

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    Good Used Caterpillar 3512 Crankshaft

    Condition: Good Used
    Model: 3512
    Depco Item # 19804

  • Rebuilt  DU79 Electric Motor

    Rebuilt DU79 Electric Motor

    Condition: Rebuilt
    Model: DU79
    Depco Item # 20048

  • New   Enclosure

    New Enclosure

    Condition: New
    Model:
    Depco Item # 20349

  • New Surplus Caterpillar 3N-3015 Exhaust Component

    New Surplus Caterpillar 3N-3015 Exhaust Component

    Condition: New Surplus
    Model: 3N-3015
    Depco Item # 20255

  • New Caterpillar  Exhaust Component

    New Caterpillar Exhaust Component

    Condition: New
    Model:
    Depco Item # 20274

  • Caterpillar  Exhaust Component

    Caterpillar Exhaust Component

    Condition:
    Model:
    Depco Item # 20276

  • New Caterpillar  Fan Guard

    New Caterpillar Fan Guard

    Condition: New
    Model:
    Depco Item # 20273

  • New Cummins 855 Flywheel

    New Cummins 855 Flywheel

    Condition: New
    Model: 855
    Depco Item # 14307

  • New Cummins 855 Flywheel Housing

    New Cummins 855 Flywheel Housing

    Condition: New
    Model: 855
    Depco Item # 09579

  • Good Used Caterpillar  Generator Coupling

    Good Used Caterpillar Generator Coupling

    Condition: Good Used
    Model:
    Depco Item # 20239

  • Good Used Caterpillar  Generator Coupling

    Good Used Caterpillar Generator Coupling

    Condition: Good Used
    Model:
    Depco Item # 20348

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    New Caterpillar Muffler

    Condition: New
    Model:
    Depco Item # 20267

  • New Caterpillar  Muffler

    New Caterpillar Muffler

    Condition: New
    Model:
    Depco Item # 20268

  • New Surplus Caterpillar 3516 Oil Pans

    New Surplus Caterpillar 3516 Oil Pans

    Condition: New Surplus
    Model: 3516
    Depco Item # 15107

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    Used Caterpillar 3512 Other

    Condition: Used
    Model: 3512
    Depco Item # 20338

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    Used Caterpillar 3512 Other

    Condition: Used
    Model: 3512
    Depco Item # 20339

  • Used   Radiator

    Used Radiator

    Condition: Used
    Model:
    Depco Item # 20582

  • Used   Radiator

    Used Radiator

    Condition: Used
    Model:
    Depco Item # 20583

  • Used   Radiator

    Used Radiator

    Condition: Used
    Model:
    Depco Item # 20584

  • Used Bearward  Radiator

    Used Bearward Radiator

    Condition: Used
    Model:
    Depco Item # 20585

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    New Surplus Delco MT50 Starters

    Condition: New Surplus
    Model: MT50
    Depco Item # 20182

  • IR 815 Starter

    Good Used Ingersoll Rand Ingersoll Rand Air Starter Starters

    Condition: Good Used
    Model: Ingersoll Rand Air Starter
    Depco Item # 20260

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    New Cummins 855 Water Cooled Exhaust

    Condition: New
    Model: 855
    Depco Item # 09435

  • New Cummins 1150/K19 Water Cooled Exhaust

    New Cummins 1150/K19 Water Cooled Exhaust

    Condition: New
    Model: 1150/K19
    Depco Item # 09576

Generator Repair Parts and Diesel Engine Spare Parts

Depco stocks a wide selection of generator repair parts and diesel engine spare parts to support routine service, troubleshooting, rebuilds, and uptime-critical repairs. Our inventory includes hard-to-find power system components, engine maintenance parts, and related power generation parts for a wide range of generator and engine platforms.

Power System Components and Engine Parts We Commonly Stock

Our inventory often includes essential power system hardware and diesel engine hardware used across commercial and industrial generator applications:

• Control panels and electrical controls (including generator control panel components and related power system accessory items)

• Radiators and cooling system parts (radiators, heat exchangers, cooling components)

• Starters and starting system parts (air starters, electric starters, supporting components)

• Switchgear and breakers (common power system components used in distribution and protection)

• Fuel and air system parts (fuel tanks, air inlet components, air shutoffs, filters, housings)

• Exhaust and engine accessory parts (mufflers, guards, exhaust components, related generator engine accessories)

• Core engine parts and assemblies (blocks, crankshafts, flywheels and other diesel motor components depending on inventory)

Industrial Diesel Parts, Commercial Engine Spares, and More

Whether you need industrial diesel parts for continuous-duty equipment, industrial motor parts for heavy load applications, or industrial engine spares for preventative maintenance planning, Depco helps customers source reliable diesel power system parts to keep equipment running.

Customers commonly use this inventory to support diesel generator engine parts, generator motor parts, and other generator engine components required for repairs, upgrades, and scheduled service intervals.

Engine Component Suppliers for Major Brands and Platforms

Depco works as a practical source for customers looking for experienced engine component suppliers with real inventory visibility. We frequently stock parts supporting common generator and engine platforms across major manufacturers (including Caterpillar, Cummins, Detroit Diesel, Delco, and others when available). This makes it easier to match the right generator engine components or industrial engine accessories to your application without unnecessary downtime.

If you’re searching for generator engine manufacturers support, this category can help you find the compatible generator engine components and power system components that typically pair with those platforms.

Selecting the Right Power System Hardware for Your Application

Choosing the right engine maintenance parts and power system hardware depends on your equipment model and how it’s used (standby, prime, industrial, marine, or continuous duty). If you’re unsure what to order, Depco can help confirm fitment based on your engine/generator information and intended operating environment.

• Confirm the equipment model, serial range (if applicable), and your system configuration

• Identify whether you need complete generator engine accessories or individual diesel engine hardware and diesel motor components

• Check voltage/controls requirements for electrical parts and power system accessory items

• Plan around maintenance windows and lead times for specialty industrial engine accessories

Inventory Changes Frequently

Parts inventory moves quickly, and available items can change daily. If you don’t see the specific power generation parts, generator motor parts, or diesel generator engine parts you need, use the Create Inventory Alert option on this page to get notified when matching items are added.