About Our Owner


Family-Run Business with Decades of Experience in Truck Repairs

Our owner, RJ Manfredi, has more than 30 years of experience in the truck repair business. He brings his knowledge and skill to the shop to ensure you get the best quality repairs. His sons, Branden and Collin, are also certified truck mechanics with years of experience. Together, the family works in unison to give you the best!

Our Difference

  • Over 30 years of experience
  • ASE certified.
  • Master Truck Technician
  • Family-owned and operated business
  • Specialize in truck repairs
  • Heavy equipment repairs
  • Excellent customer service
  • Count on us for all of your diesel repairs and maintenance. We are also certified to handle all types of vehicle inspections. Your truck deserves the best!

All Work Guaranteed

ALL of your work through RJ’s Diesel Repair Inc. comes with a 1-year limited warranty. Call 860-599-3088 to schedule an appointment today.


RJ's Diesel Repair Inc.
  • Address 62 Voluntown Rd. Pawcatuck, CT 06379
  • Phone (860) 599-3088


For RJ's Servicing
  • Mon - Fri Open 8:00 am - 5 pm
  • Saturday Closed All Day
  • Sunday Closed All Day
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