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August 2024 by Caden Riddle
I’m in the process of doing a complete rebuild on my 95 12v Cummins. I ordered injectors about 2 months ago and I’m just now getting around to installing them. And there was a mix up where I was given the correct injectors but wrong year. Even tho it was 2 months prior they sent me out the correct set free of charge to make things right!! Great company to work with and will continue to buy products from them!!
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July 2024 by Jacob Shelley
Great prices fast service. Been using these guys for years
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December 2023 by Dianne
Ordered parts for my son's truck
The order taker was extremely professional and courteous.
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December 2023 by Josiah Varvara
I couldn't find a fuel delivery valve for my first gen Cummins VE pump, but I did find it on Diesel Auto Power's website along with a whole bunch on other separate parts for that pump. Great service and Great Selection would shop here again!
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November 2023 by Ron Teal
DO NOT DO BUSINESS WITH THESE PEOPLE! VERY DISHONEST!they did the old bait and switch I purchased the rebuild kit for my Cummins and they advertise parts like Mahle, Clevite, and Cummins. sent PAI garbage! 30% failure rate on the head gaskets!I didn't buy ARP head studs to install this junk!I've been duped!
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September 2023 by Wiley Stoesz
I have dealt with dap 2 times now... can't imagine better customer service!!! Hope to do business again in the future!!
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September 2023 by Dalton
Will be buying everything I can from these guys. Absolutely outstanding service, quick, polite, knowledgeable staff. Ordered injectors and ended up wanting to change them back to stock they gave me no troubles returning them and in a quick and timely manner. Mitchell was a huge help through the whole process. Would highly recommend.
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February 2023 by Dom Panaccio
Top company, with economical pricing, best bang for your buck out there. Also provides phenomenal customer service to anyone looking for High HP builds or daily drivers. Give ‘em a call!
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November 2022 by Erin Millage
Great customer service and very informative if you have any questions they are ready to help! Couldn’t recommend them enough.
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September 2022 by Lyle Whitford
After posting to a Cummins forum, Jacob responded quickly to my post. He started asking questions to find the right clutch for my application. When I called him and asked a bunch of questions myself he was very knowledgeable and didn’t over sell me to one item. He made sure to sell me the right one for my truck. He was also very patient with my questions, thank you for that!! This company has earned my business and I will be recommending them to friends and family.PS not sure how the clutch actually performs for me yet but I have high expectations and I’m pretty positive it will do it’s job.Valair organic dual disk quiet2016 2500 Cummins G56
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September 2022 by Dylan Nicholson
Update... Lenny provided the best customer service I've had in a while! To be honest the experience I had at their shop rivals as one of the best experiences customer service wise I have ever had! If you need a part they'll get you the part you need or want with no snake oil or BS attached with no snake oil or BS attached!100% the only online diesel performance site I've ordered from! Some time I'd love to drive 5 mins to go thank them and buy more tow fast parts! Thanks diesel auto power!
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September 2022 by Mason Howard
I was very pleased with the service that diesel auto power provides. The ship parts very quickly and customer service is awesome.
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September 2022 by Bos333 I
Had a really good customer support staff with my order.
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September 2022 by David Mattson
Great service, knowledgeable staff and sales team. Great quality performance parts!
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September 2022 by Jacob Berberat
Extremely fast shipping and excellent customer service
