Unfortunately UPS lost my package but their help center saved the day. I spoke with Katy over the phone at there help center and within a matter of 2 days she was able to get my order rectified and re... Toon meer
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Received the Sinister on engine billet fuel filter. Installation was a breeze. Feel a Lot more confident that I have avoided a major issue with this installation. Have a few more items I plan to purc... Toon meer
Bedrijf heeft geantwoord
I ordered the oil cooler and coolant filtration system because my deltas were off. This fixed my issues and I am now running with in range. Everything arrived complete and I had no issues getting it i... Toon meer
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Parts ordered were packed well i protective packaging and shipped quickly. Received everything in approximately 4 days in very good condition, all parts fit exactly and were very easy to install. De... Toon meer
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Bedrijfsgegevens
Informatie afkomstig van verschillende externe bronnen
Sinister Diesel is your one stop shop for Ford, Chevy, GMC, and Dodge diesel performance parts. Sinister Diesel is also the number one source for Diesel Racing Components, Exhaust Systems, Tuners, Ford Powerstroke, Dodge Cummins, and GM Duramax engine repair parts, upgraded EGR coolers, lighting, bumpers, grilles, and suspension components from our parent company Sinister MFG & Sinister Diesel®. We offer the biggest names in the industry to help you repair or modify your Powerstroke, Cummins, or Duramax diesel engine.
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- sinisterdiesel.com
4,6
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4K reviews
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Heeft 66% van zijn negatieve reviews beantwoord
Reageert doorgaans binnen 1 week
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Alsome 💪💪💪💪💪💪💪💪💪💪
19 januari 2026
Review zonder uitnodiging
Antwoord van Sinister Diesel
We’ll take that as a win! 💪😄
Thanks for the energy and the support, it means a lot. We’re glad you’re happy with everything and appreciate you choosing Sinister Diesel.
Service call from hell
Ordered part, then hit call telling me that the part was back ordered, 6-8 weeks for delivery. The woman that called was insulting and told me that it was my fault for misreading the order page. She must've been standing on her desk yelling. It was loud. Told her goodbye, no more sinister diesel.... BYE
7 januari 2026
Review zonder uitnodiging
Antwoord van Sinister Diesel
Hey Brian, We are sorry to hear this. The part you ordered is a 5-7 day lead time, which is stated on the website... but definitely not a 6-8 week delivery time. We left a message for you to get to the bottom of this, so please call us if you'd like to chat about this. We work hard to provide every customer a positive experience, so would like to see where this went wrong.
Antwoord van Sinister Diesel
We appreciate the feedback! Glad everything showed up quickly and that the product delivered like it should. Thanks for choosing Sinister Diesel! We’re here whenever you’re ready for the next one.
Quality items
Have received the order but have not had the time to install it yet. I am very happy with the quality and craftsmanship of the items, and the blue powder coating is the exact color i am looking for to accent my truck
2 februari 2026
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thanks for the review! We’re glad to hear the quality and craftsmanship stood out right away, and it’s great to know the blue is exactly the look you were going for. We appreciate you choosing Sinister Diesel and hope the install goes smoothly when you get the chance. (And if there is anything we missed to get that extra star, let us know! We aim for a 5-star customer experience every time)
Great products.
Liked the packaging, my pipes and intakes were packaged good. The intake makes a crazy difference in sound, turbo is about 2-3 times louder paired along with my intake horn. Products also came with good instructions, clear and easy to follow.
10 januari 2026
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thanks for taking the time to share your experience. We’re glad to hear everything arrived well packaged and that the install instructions were clear and easy to follow. It’s also great to hear you’re enjoying the difference in sound, that turbo whistle never gets old. We appreciate you choosing Sinister Diesel and are always here if you need anything as you continue the build.
The customer service was tremendous…
The customer service was tremendous with this company I ordered a bunch of new parts and one came in for the wrong year. They literally had the correct one out to me the next day even before I sent the wrong one back.
30 januari 2026
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for the great review! We’re glad our customer service team was able to jump in quickly and get the correct part out to you right away. Taking care of issues efficiently and keeping customers moving is something we take a lot of pride in. We appreciate your trust in us and are always here if you need anything else.
Great quality parts
I received the part(s) as ordered within the estimated delivery date despite it being on backorder. The fuel filter was professional engineered and fabricated. I have yet to install it but looking forward to getting this installed so I can drive my truck worry free.
26 januari 2026
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thanks for sharing your experience. We’re glad the order arrived within the expected timeframe and that the quality and engineering stood out to you. That peace-of-mind feeling is exactly what we aim for with our fuel system components. We appreciate your business and hope the install goes smoothly. We’re here if you need anything along the way. And let us know if there's anything we can do differently to earn that extra star.
Good parts!
22 januari 2026
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thanks for the feedback! We’re glad you’re happy with the parts. We appreciate your support and look forward to helping you again.
Great intake kit
Intake kit for a 2000 ram 2500 5.9 cummins. Works as designed. Great fit and finish.
1 januari 2026
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thanks for the review! We’re glad to hear the intake kit fit your 2000 Ram 2500 as intended and that the fit and finish met your expectations. Our team puts a lot of care into the design and build of every part, and we appreciate you choosing Sinister Diesel.
Great quality product!
4 januari 2026
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for the feedback! We’re glad the quality met your expectations. Our team takes a lot of pride in building products that perform and last, and we appreciate you choosing Sinister Diesel.
Great company to work with and order…
Great company to work with and order from. Part of my order was on back order they let me know promptly and gave me a date that it would ship. Items did indeed ship on the date given and arrived promptly!
11 december 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for taking the time to share your experience. We’re glad the communication around the backorder was clear and that everything shipped and arrived right on schedule. Keeping customers informed and delivering when we say we will is something we take seriously.
We appreciate the opportunity to earn your business and look forward to helping you again in the future.
Too expensive for what it is
Too expensive for what it is. I ordered a different brand that's polished aluminum for less than half the price and same quality
30 december 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for taking the time to share your perspective.
Our pricing reflects U.S.-based manufacturing, materials, quality control, and the customer support that backs every product we sell.
We appreciate you giving Sinister Diesel a try and wish you the best with your build. If you ever have questions or need support in the future, we’re always here to help.
Still waiting on refund
Fast shipping. However, my truck took a crap before it arrived so I never took it out of the box and shipped it back immediately. That was 2 weeks ago and still haven't received the refund. Emailed them to ask them to please initiate a refund but nothing. Would appreciate it if you all could do that ASAP.
Order SO#57432
Thank you and have a blessed day.
18 december 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Hi Katie, I forwarded this to our customer service on the day you posted this, and she let me know that your refund was scheduled for that day and she had touched base with you. Let us know if we can help you with anything else moving forward.
Good coolant filter kit
Good coolant filter kit. Instructions could be better so you don't have too make phone calls and wait for a response for clarification. Web site should also state that it might or might not work with aftermalet air filter kits. I have a S&B filter kit and I had to force the air box back in place because it was hitting against the bracket.
Update; I changed my review from 4 to 5 due to Sinisters communication.
18 december 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for the honest and detailed feedback — we appreciate you taking the time to point this out. While we’re glad the coolant filter kit itself performed well, we understand the frustration around unclear instructions and unexpected fitment issues.
Your notes about clearer installation guidance and compatibility with aftermarket intakes like the S&B kit are helpful, and we’ll be reviewing both our instructions and website details as a result. Feedback like this helps us improve the experience for future customers.
We appreciate you bringing it to our attention, and if there’s anything else we can help with, our team is always here.
Antwoord van Sinister Diesel
Thank you! We appreciate you taking a moment to share that and are glad you had a great experience. If you ever need anything down the road, we’re happy to help.
Quick shipping no BS, solid product.
Quick shipping no BS. I grabbed a "blemished" intake & saved some bucks. Honestly it didn't look bad whatsoever & I was glad I could save some money. I installed it with my kid on Christmas and holy smokes my diesel whistle is proper now. Sounds freaking amazing! I'm looking forward to putting on the steering box brace I got too. Waiting on my socket & will be putting it on shortly.
24 december 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
That’s awesome to hear — thanks for sharing the experience. We’re glad the blemished intake delivered the value you were hoping for and that it still looked good once you had it in hand. Installing it with your kid on Christmas makes it even better, and it’s great to hear that whistle came alive the way it should.
Sounds like you’ve got some fun upgrades lined up next with the steering box brace. We appreciate you choosing Sinister Diesel and are here if you need anything along the way.
Out of Stock
Before ordering I called multiple shops for labor quote. Informed them of expected install week 12/15. I ordered on 12/2 and have not recieved the product yet...12/23. A couple of days after ordering I was informed to delivery location was not valid. Worked with agent to change to home address vs selected mechanic. At this point the product was out of stock and became a backorder. Also earlier this year I ordered a FICM, not showing on me history of purchases can this be fixed. Product sent to same home address....Jackson Ms 39213.
2026/01/08 - Thanks for the followup. The product is exactly what I wanted...hope to have it installed by the end of the month.
1 december 2025
Review zonder uitnodiging
Great product
Great product. Only issue I had was the mounting bracket had to be modified some for the banks grid heater delete. Have to cut about 1/2” off of the back side by the intake if you have the banks intake and heater delete.
18 november 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thanks for the detailed feedback, we really appreciate you taking the time to share it. We’re glad to hear you’re happy with the product overall, and thanks for pointing out the fitment note with the Banks intake and grid heater delete. That kind of real-world install insight is helpful not only for us, but for other customers as well.
We are talking with the team about a modification to this part soon. If you ever have questions during an install or need help on a future upgrade, don’t hesitate to reach out.
Always a fast and easy shopping…
Always a fast and easy shopping experience. I've bought several Ford 6.0 trucks this year to fix up and use building each one with the bypass oil & coolant filter setups as well as the fuel regulated blue spring modification.
10 december 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Really appreciate you sharing this! It’s great to hear that ordering from us has consistently been quick and easy for you. Sounds like you’ve had a busy year with those 6.0 builds — and we’re proud to be part of each one with our bypass kits and fuel pressure upgrades.
Thanks for continuing to choose Sinister Diesel. If you need anything for the next project, you know where to find us.
Another satisfied customer
Always an easy process to find and purchase my desired products. Literally have everything made by sinister on my 6.0 and 6.7 Powerstroke diesels. Great quality on every product, with absolutely no issue. Ever. Tip of the cap to this company.
9 november 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for such an awesome review — that really means a lot to our whole team. We work hard to make the buying process straightforward, so it’s great to hear it’s been consistently smooth for you.
And having Sinister parts on both your 6.0 and 6.7 is something we definitely appreciate. Hearing that everything has performed flawlessly with zero issues is exactly what we aim for when we talk about delivering a 5-star experience.
Thanks again for the trust and the tip of the cap — right back at you. We're here anytime you need us.
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