Established 1981

Certified Generator Seal of Approval



For over 30 years Diesel Service & Supply has set the standard for dependability. We know that when you need your generator to work, you need it to work properly from start-up to shut-down. Our rigorous check-in and inspection program - that all of our equipment undergoes - will provide you with assurance that your generator will work when you need it most. We know you don't cut corners in your business and neither do we. We are confident we can provide you and your business with the utmost in Seal-Satisfaction-Guaranteed-PNG.pngservice, quailty, dependability and satisfaction.

Our staff of experienced diesel professionals includes electricians, riggers, de-installers and field mechanics to handle service, de-installations, in-house load bank and dyno testing. Our staff has been responsible for the professional de-installation of multiple units up to 6 megawatts. Sprint, Qwest, Wal-Mart, Office Depot, Teletech and the University of California are among our most satisfied customers.


Our diesel engineers and technicians are among the most skilled in the industry with over 70 years of combined professional experience. Advanced academic training achievements include:

  • Engine Management Systems and Accessories
  • Fluid, Power and Electrical Systems
  • Power Trains
  • After Treatment and Induction Exhaust Systems
  • Heavy-Duty Torque Conversions
  • Diesel Engine Frequency Conversions for International Use (60hz to 50hz)


Many companies in the industry like to represent themselves as experts in diesel engines and generators, only for customers to discover later that they are in fact dealing with a broker who represents inventory they don’t own. At Diesel Service & Supply, we are confident in the quality of our equipment because we personally inspect and test every generator we sell. To ensure the credibility of our equipment:

  • We own what we sell
  • We do not broker other dealer’s inventory
  • We do not outsource service
  • All labor is completed at our 25,000 sq. facility in America

Genuine Parts…

The old adage, “You get what you pay for.” still rings true. At Diesel Service & Supply we have always believed in using genuine parts; no knockoffs. Generic parts are often unreliable as there is less knowledge about where they were manufactured and the quality behind them. We only stand behind products we personally believe in, and that’quality OEM parts.

  • We own 100% of our parts
  • We do not sell parts
  • We ONLY stock OEM parts and supplies

Fully Customizable…
One size does not fit all in the generator industry. Getting the right fit with your generator installation is crucial for the long-term performance and reliability of the unit.  We believe in doing the job right the first time so we have developed a fully-capable fabrication department to customize any generator to meet your facility’s needs. Some of our past customizations have included:

  • Enclosure Housing
  • Weatherproofing
  • Sound Attenuating
  • Shipping Container Mounting
  • Trailer Mounting
  • Fuel Tank Options
  • Skid Mounting
  • Modifications to accommodate standby, prime or continuous operation
  • Tight-Spaced Installations
  • Special Applications
  • Ventilation and Exhaust Outputs
  • Working to fit specific building specifications

Manufacturer Specific Inspection Process
Since 1981, Diesel Service and Supply has continuously developed relationships with the most well known and respected generator manufacturers in the industry. Our close relationships with these top manufactures keeps us informed of the most up-to-date inspection processes which is critical in obtaining optimal generator performance.

  • We follow Caterpillar, Cummins, Detroit’s and other leading manufacturer’s internal inspection processes
  • We service all makes an models within the industry
  • We service all fuel types including: diesel, propane, natural gas and turbine generators

Diesel Service & Supply's 31 Point Inspection Process
In addition to following the manufacture’s inspection guidelines, we decided to add additional inspection procedures to better insure that you, the customer, are getting the best possible generator for your money. We work hard to ensure our quality standards are being met and our efforts are rewarded each day with our customers satisfaction and assurance that their generator will operate when and as it should. We take great pride in knowing that our equipment will work on time, every time.

Standard Checks:

  • Grease Gen Bearing
  • Tighten Hose Clamps
  • Check Oil & Condition
  • Check Coolant (Full & Protected for Temp)
  • Turn Engine for 2 Full Rounds
  • Remove Remote Wires
  • Tighten All Term Screws
  • Check Air Filter
  • Check Barrel Leads (Insul. Tightness)
  • Voltage Check
  • Check Fan Belts
  • Missing Belts
  • Check Block Heater
  • Remote Start Connection (Locate, Test & Tag)
  • Fuel Pumped Out of Tank
  • Battery Voltage (12 or 24 Volt)
  • Cold Water Leaks
  • Check Fuel Rack
  • Check Battery Cables
  • Check Battery Charger

Load Bank Tests:

  • Check Temperature with Heat Gun
  • Coolant Leaks
  • Oil Leaks
  • Full Rating Tests
  • Gauge Compliance Tests
  • Gauge Adjustment Tests
  • Accurate Temperature Gauge Test
  • Engine Alternator Test
  • Pre-Alarm Verification
  • Shut Down Verification
  • Auto Start Test & Tag Verifications

Contact one of our knowledgeable staff members here with questions about buying, selling, freight, order status, or any other question you may have regarding our inventory or services. 

You can also call or email us with any questions you may have:

Sales - (800) 853-2073 - sales@dieselserviceandsupply.com
Purchasing - (877) 573-6978 - purchasing@dieselserviceandsupply.com