Diesel Conversion Specialists

Reviews

• JL

  Justin Lance

  Sep 22, 2025
  5.0
  Cannot say enough good things about these guys. Would give 10 starts if it was possible. I've bought 90% of my 12v conversion parts from them and quality is top notch. I also sent in my wiring harness to be modified for my swap and was expecting them to only change the connectors and length of the wiring to work with the swap, but they completely re did the whole harness and it looks brand spanking new! These guys really know what theyre doing, they even called me multiple times to see how my conversion was going and if I needed any technical assistance or had any questions. Very knowledgeable people as I did have several questions I emailed them about, to which they got back in a very timely manner with all the info I needed. Every part also comes with instructions on how to install it on your comversion engine. Would recommend 10/10 to not hesitate to pull the trigger if youre deciding where to get your conversion parts from.
• CG

  Carlos Gurrola

  Sep 27, 2024
  5.0
  Great people!!!!!!!!!!! Great experience with customer service and knowledge. There’s a lot of company's out there doing what they do but they cannot beat their personal customer service and help. I will always recommend DCS to anyone.
• BS

  brent stewart

  Jan 28, 2023
  5.0
  Great company and good quality on parts
• DN

  Dean Nicholson

  Jan 10, 2023
  5.0
  Good People that know what they are doing and they did well for me.
• JS

  Jon Shepherd

  Dec 29, 2022
  5.0
  I'm swapping my 6.0 diesel with a 2001 24 valve Cummins in my 2004 Ford Excursion.The products that Diesel Conversion Specialist offer are built well, fit great, and the wiring harness worked great as well. With their conversion kit I had to do minimal fabrication work. I feel the price of their products are very reasonable do to the quality of products and help you recieve. The staff is and has been very helpful through my conversion process with answering questions related to unforeseen problems with my Cummins swap. I'm about 95% done with my Cummins Conversion and I would highly recommend their Conversion Kits or products to anyone doing a Cummins swap.

Frequently Asked Questions About Diesel Conversion Specialists