The last diesel parts supplier you'll ever need to find.
Unedited reviews from verified buyers. We don't write them, filter them, or pay for them. Some customers have been ordering for years. Some found us when no one else had the part.
4.9
out of 5 · 812 reviews
40+
years in business
30K+
customers worldwide
190+
countries shipped to
Verified on Google · dieselpro.com
When something went wrong5
Most suppliers hide this. We don't. How a company handles mistakes tells you everything about who they really are.
GS
Geoff Slapp
a month ago
★★★★★
“Our business got shafted by Diesel pro some years back , we ordered & payed for two new turbos ,payed freight & customs charges .We gave the correct part number ,the boxes they came in had correct part number but the turbos were wrong .Diesel pro played around back and forth for months then told me Therese no warranty or comeback and i was left with two totally useless Tubos and out of pocket sum $10,000 AUD”
Google Verified Review
JR
jason rogers
2 months ago
★★★★★
“I’ve been building and servicing marine diesel engines for years, and this was hands down one of the worst parts supply experiences I’ve dealt with. I ordered two complete B-series rebuild kits from Diesel Power Pro / Pro Power along with additional engine components. What followed was a month-long nightmare of wrong parts, mislabeled components, delays, and constant back-and-forth just trying to get basic issues corrected. Problems included: • Wrong oversized pistons sent AFTER providing correct engine and part numbers • Bearings packaged in correctly labeled boxes, but the actual bearings inside were wrong • Five out of six bearing sets were incorrect • One bearing set didn’t even appear to match the application at all • Cooling nozzle jets supplied that do not fit the engine platform ordered for • Sold duplicate “complete” gasket sets for nearly $1,000 even though the rebuild kits already included them Any professional mechanic knows this isn’t just inconvenient — this destroys scheduling, delays machine shop work, delays customer jobs, and wastes countless labor hours verifying and correcting supplier mistakes. The biggest issue was the customer service afterward. I returned the duplicate parts, they received them on the 16th of last month, and I JUST NOW finally received my refund over a month later after repeated follow-ups and constant resistance. Mistakes happen in the diesel industry. Every mechanic understands that. But repeated application errors, mislabeled parts, incorrect packaging, and fighting customers during resolution is unacceptable from a company selling engine rebuild components. If you order from this company, verify EVERY SINGLE PART before assembly. Measure everything. Inspect everything. Do not trust the labeling on the boxes.”
Google Verified Review
K
Kevin
10 months ago
★★★★★
“We have been rebuilding a Cummins engine here at work, that’s something we don’t deal with here, as we work on locomotives. Luis at Diesel Pro has gone above and beyond to help us get the correct parts!”
Google Verified Review
JS
J Schoote
11 months ago
★★★★★
“Diesel pro was fantastic. I run a 65ft charter fishing boat which needs to run everyday during the short season. The sales people were very knowledgeable, got the correct parts and got them there on time. I will make diesel pro my first call for all my needs. Capt. Carl Schoote Cap’n Kids Fishing Adventures, Inc.”
Google Verified Review
KL
Kyle L
a year ago
★★★★★
“Diesel pro is my go to part store for my Detroit engines. Dylan is very helpful and knows the exact part I’m looking for each time. Quick shipping and they always follow up to make sure the alert arrived in good condition and was the correct part. I use them everytime”
Google Verified Review
They answer the phone5
Every review about this sounds surprised. That says something about the industry — and about Diesel Pro.
DJ
Dan Johnson
a month ago
★★★★★
“Very helpful with ordering Diesel Engine parts.”
Google Verified Review
JS
Jay Swanson
a month ago
★★★★★
“Knowledgeable. They know their parts. Prompt call returns and order shipping. Every order, and I have made several, was followed up with a courtesy thank you phone call. Diesel Pros is my go to source for Detroit parts.”
Google Verified Review
JG
John Gombos
a month ago
★★★★★
“Caser, as always is very helpful.”
Google Verified Review
JH
Jim Holland
a month ago
★★★★★
“Luis was very helpful and the parts shipped promptly and arrived sooner than expected.”
Google Verified Review
RS
Roderick Stevens
2 months ago
★★★★★
“Lewis is awesome. Very helpful, patient understanding in meeting my needs, when it come to engines”
Google Verified Review
Seen enough? We're ready when you are.
Tell us the engine. We'll find the part, confirm it fits, ship it the same day, and follow up after delivery. 40 years. Same process.
We visited Captain David of the Reward Fishing Fleet and filmed him starting his Detroit Diesel 8V71 engines. These engines run every day. That's why he uses Diesel Pro.
Engine room tour · Captain David · Reward Fishing Fleet · Detroit Diesel 8V71
Long-term customers5
The customers who keep coming back are the ones who've tested every alternative.
SJ
Skylar Jade
5 months ago
★★★★★
“Very easy to navigate the site, ordered a tool from them and they made sure it came next day as promised. Great company, Highly Recommend!”
Google Verified Review
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fischmusic
5 months ago
★★★★★
“Luis and Diesel Pro Power are the BEST! Seconds to None. There parts are in some cases better than OEM , Service from Luis is like dealing with an old friend and is avail at the drop of the hat. They go above and beyond even special wrapping plastic with parts on a pallet for me to drive home in an opened bed of a truck! Cant recommend enough , This is the go to place for my Detroits as well as any other engine manufacture that they carry.. Thanks Diesel Pro for making it seem less !”
Google Verified Review
LT
Lloyd Topping
10 months ago
★★★★★
“Dealing with Diesel Pro was a pleasure. Everyone was very knowledgeable and the service was fantastic. They helped me get out of a turbo replacement in a timely manner. That was very important to me. I will be using Diesel Pro again, for sure.”
Google Verified Review
M
Mariusz
10 months ago
★★★★★
“I received the ordered parts very quickly. Everything I ordered came as described. The seller is always ready to help. I recommend it to everyone. Mariusz”
Google Verified Review
WM
Wayne Macfarlane
0 years ago
★★★★★
“I will definitely be dealing with Diesel Pro again in the future, they had exactly what I needed, all communications were fast, friendly and efficient. Shipping to South Africa from the USA was hassle free and I received my parts in record time - wow!!!!. Thank you to all involved in making my experience a very pleasant one.”
Google Verified Review
Fleet & commercial1
Repair shops, charter fleets, marine operators — businesses where downtime costs money.
CP
Cesar Penaherrera
2 months ago
★★★★★
“Never buy DieselPro spare parts, NEVER!!”
Google Verified Review
International orders5
190+ countries. In their own words.
MO
Marc Ortiz
a week ago
★★★★★
“Very professional, no problems at all, I highly recommend them. It's clearly a team that follows through. I would work with them again without hesitation. Thank you, Marc.”
Original: Très professionnel pas de soucis je le recommande, une équipe qui suit c'est clairement.je retravaillerai avec eux sans soucis.merci Marc.
Google Verified Review
AB
Alain Barcenas
2 months ago
★★★★★
“Great team and their parts meet your requirements. 100% recommended. Greetings to the whole team and especially to Cesar.”
Original: Buen equipo de trabajo y sus piezas cumplen con sus requisitos 100% recomendado saludos para todos el equipo y en especial a cesar
Google Verified Review
BB
Benito Bernal
9 months ago
★★★★★
“Excellent service, they answer all your questions.”
Original: Excelente servicios, te resuelven todas tus dudas.
Google Verified Review
JR
Jimmy Rios
9 months ago
★★★★★
“Good and fast service”
Original: Buen servicio y rapido
Google Verified Review
AC
andrea cellamare
9 months ago
★★★★★
“Excellent! Very friendly and professional, goods arrived quickly.”
Original: Ottimi! Molto cordiali e professionali,merce arrivata in poco tempo
Google Verified Review
More from our customers791
Everything else our customers have told us, newest first.
JM
J Mcinerney
a week ago
★★★★★
Rated 3 out of 5 — no comment left.
Google Verified Review
JF
José Figueroa
2 weeks ago
★★★★★
Rated 5 out of 5 — no comment left.
Google Verified Review
JL
Jonas Lagerlöf
3 weeks ago
★★★★★
“Ordered from Sweden, and everything was taken care of – customs duties, VAT. Delivery was completed within just a couple of days, straight to my door. It couldn't have been simpler. Brilliant service from Diesel Pro! :)”
Google Verified Review
LE
Lino E. Corretjer Maldonado
a month ago
★★★★★
Rated 5 out of 5 — no comment left.
Google Verified Review
JA
Just a Regular Creation
a month ago
★★★★★
“Very Accommodating and
Good Costumer Service”
Google Verified Review
You've read what they said. There's one thing left to do.
Tell us the engine. We'll find the part, confirm it fits, ship it the same day, and call after delivery. 40 years. Same process.