Our Commitment To You During Covid-19

Marine Service & Support

Count on the Hawthorne’s Marine Engine Team.

We are proud to offer industry-leading marine engines, engineering expertise and top-notch service in San Diego and Hawaii. Since 1956 Hawthorne has been here to meet all your Marine Service needs. 

As your authorized Cat Marine Engine Dealer for service and boat engine repair, we offer the following services at our San Diego and Hawaii locations, our on-the-water dock, or through our fleet of mobile field service technicians:


Marine Service

  • Advanced Marine Diagnostics
  • Advanced Mechanical Repairs
  • Emission Specialists
  • Engine Retrofit and Repowers
  • Engine Surveys
  • Engine Test Facility (Dyno)
  • Factory-Trained Marine Technicians
  • Fully Equipped Field Service Trucks
  • Marine Engine Rebuilds and Repairs
  • Marine Fabrication/Welding (guards, mounts, etc.)
  • Performance Analysis Reviews
  • Preventative Maintenance
  • Professional Technical Communicators
  • Sea Trials
  • Technician Wireless Dispatch
  • Worldwide support


  • Most Parts in Stock Plus Over 95% Availability within 48 Hours
  • Professional and Knowledgeable Parts Staff
  • Order Parts through Parts.Cat.Com, 24/7
  • Used Parts or Remanufactured Marine Engine Assemblies
  • S•O•SSM Fluid Analysis for Fuel, Coolant, Oil

marine industries

Questions? Contact Us

  • This field is for validation purposes and should be left unchanged.