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October 2023 by Aquatic Logic
Canadian here. I needed some parts for my OM603 and Joseph was awesome to deal with. Supplied affordable shipping to me, and had the EGR components I needed. Will be ordering more parts soon ??
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July 2023 by Jared Helbig
Doomsday only provides top notch products and advice, every purchase I’ve made with Joe has been exactly what I was expecting and the fit/finish was spot on. Can’t recommend his products enough.
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July 2023 by Ronald Watts
Excellent service. Beautiful parts. All adapters fit immaculately. Ill be returning to doomsday for all future diesel swaps.
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January 2023 by Kirk Winblad
Thank you Joe for all your help, advice and patience. I was really impressed with the thorough instructions and the fit/finish of all the products that I received from you. Additionally, your customer service was great too. We discussed a couple of options more than once and you didn't try to just sell me something. My vehicle is a Dodge M37 and with with the installation of your AX15/OM617 adapter and the HE200 WG 5cm turbo my truck transformed into something that is fun to drive!Thanks againKirk
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November 2022 by philip johnson
Love the turbo setup from joe!!!! I love this kit so much I am planning on upgrading to a bigger turbo and upgrading my injection pump. He is a really busy guy but he returned my calls when he had time, and answered my questions. Buy it!!!!
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November 2022 by Andrew Southwick
Joe takes amazing care of his customers and offers precise, quality parts to a growing, energetic market. Thank you for all you do and thanks for the 617 parts!
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November 2021 by Ryan Burke
Joe sells great products and a master at his craft. Been running his om617 kit mated to a R151f in a Landcruiser lj78. Running the HE200WG turbo from Doomsday as well. A great improvement over the stock for sure. Getting boost at the lower rpm helps greatly. Running it with stock fueling and no intercooler and EGT temps are more manageable than with the stock turbo. In the picture below I was pulling a pretty tall long grade on a Montana highway at 55-60mph keeping temps below 1000f. Acceleration is alot better with the HE200 vs stock?.
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June 2021 by Roberts Fabworks
I cannot say enough good things about Doomsday Diesel. After having countless issues with an adapter plate from a company that I will not name, including a nuked transmission input shaft, I switched to the Doomsday adapter plate and after putting a new transmission in, I have not had a single issue with my swap. Joe stood by his product and helped me track down the fact that the input shaft on my old transmission was nuked. He went above and beyond to make sure I was completely satisfied with his product. I’ve put about a thousand miles on this swap, equally on and Offroad, and have zero complaints, it is a flawlessly running kit and I love the power and efficiency. I would recommend this swap and Doomsday’s parts to anyone.
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February 2021 by David Souza
I cannot say enough good things about this company. I have purchased several large parts and kits from Joe for my Om617 swapped 1983 Toyota and everything has been a perfect fit and finish. His parts arent going to break unless you are wielding a torch, and his customer service I can say is top notch since I lost a part and he made me a smoking deal on it. Wont buy parts elsewhere if doomsday has them and neither should you.
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February 2021 by David Souza
Great customer service, and high quality parts. Anyone looking to swap a om617 into a Toyota or jeep, this is where you want to get your parts from.?
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February 2021 by Jeremy Filley
The amazing customer support that Joe provides doesn't even come close to translating to words. His quality control and R&D are top notch!
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January 2021 by Erik Kempf
If you are looking for a top notch adaptor plate for your diesel engine Doomsday Diesel is the best there is. I purchased Doomsday's AX15 adapter for my OM617 swap. Fit, finish, and attention to detail exceeded my expectations. When its time to start working on my TDI swap , Doomsday will be my first stop as well.
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October 2020 by Christopher Corpus
Been into off-roading/fabrication for around 15 years, and have had one truck the entire time. I've had to rely on many different companies due to my lack of either tools, time, experience or all the above. Throughout the years only a small handful of companies have gained customer loyalty like Joe at Doomsday diesel. The craftsmanship of the products are only surpassed by Doomsday diesels top notch customer service. As a loyal customer, I look forward to many successful years for Joe and the fantastic company he has started.Items I've purchased.OM617 adapter plateMotor mountsFlywheelThrottle cable mountEGR deleteWiring kitPower steering mountBattery trayFuel filter adapterOil filter relocation kitThermostat housingHigh clearance oil pan.Probably more im forgetting.Soon to purchase.AC and alternator brackets.
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October 2020 by Shawn Ford
I recently swapped in Doomsday Diesel's new OM617 to AX15 adapter kit on my Jeep Comanche pickup. I originally had purchased a kit from another company (it was the only one available at the time two years ago). What a night and day difference. The competitors kit was poorly designed and caused me a lot of issues, such as clutch chatter, throw-out bearing issues, vibrations outside the normal scope of the 5-cylinder diesel, and in addition to a sketchy crank adapter that I'm convinced was not concentric. It was so bad that I thought I needed to rebuild my transmission because I was convinced the shortcomings of the old kit had surely killed it. I installed DDD's kit and have put thousands of mileage on it in the past few months. I'm amazed at how much better this truck shifts, drives, and how the aforementioned issues suddenly seemed non-existent. The DDD kit is hands-down the only kit I'll ever run on any future swaps. Everything with this kit was well thought out, and machined to precision. I am 100% confident that I could drive this truck from coast to coast now. I couldn't say that before. It's legitimately like driving an entirely different truck.10/10 recommend!! Thanks a ton, Doomsday Diesel!! ?
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October 2020 by scott vancura
Joe is good people. Ive been impressed with how honorably he conducts his business on more than a few occasions, even outside our own interactions. Ive made a few purchases, nothing extravagant enough to warrant special attention, but the quality of service he gives his customers would make you think otherwise. The other guys screwed me over in a big way and Doomsday Diesel went above and beyond making sure a project that i had invested into far past the point of no return didnt end up a flop. Took the competition 4 design changes plus a destroyed engine and transmission to still wind up without a usable adapter system. Doomsdays first attempt at what the other guys couldnt manage to do after more than 2 years of trying to get it right was miles ahead of what id been receiving from them in terms of quality. It saved my project and has been perfect in every aspect since installation. Every purchase I've made from Doomsday has been made with confidence and, to me, that's about the biggest compliment i could give to a business. Peace of mind is priceless.*Ax15/TF999 to om617 adapter kit specifically
