Professional Diesel Injection Specialists

Roy's Diesel Injection Service Inc. is a renowned diesel injection specialist serving the communities of Jacksonville, Orange Park, Lakeside, Baldwin and the surrounding areas. We offer specialized service for electronic and mechanical governors, fuel injection, multi-port and throttle body injectors. Whether you're looking for diesel engine parts to improve the performance or you need the latest common rail systems tested, you can rely on us.


Brands We Service:

  • Yanmar
  • Bosch
  • Cummins
  • Detroit Diesel
  • Stanadyne
  • Caterpillar Diesel
  • Alliant Power
  • Schwitzer
  • Ambac
  • Garrett
  • Delphi
Give Us a Call Today

(904) 515-4865