Sinister Diesel Reviews 4,098

TrustScore 4.5 out of 5

4.6

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Review summary

Created with AI, based on recent reviews

Looking at 78 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the high quality and craftsmanship of the products, noting their durability and impressive performance improvements. Many people highlight the ease of installation and the noticeable positive impact on their vehicles. The delivery service is frequently described as fast and efficient, with items arriving well-packaged and in perfect condition. The overall user experience, from finding products to purchasing, is often cited as smooth and straightforward. However, some customers experienced issues with their orders, particularly concerning backordered items and delayed shipping. A few people mentioned receiving incorrect or damaged parts, or having to modify products to fit. There were also occasional complaints about communication regarding order status and tracking information.

What people talk about most

Product

Reviewers mention positive feedback about product quality and performance. Customers are happy with the... See more

Quality

Users describe positive interactions with quality. Many customers praise the impressive craftsmanship and... See more

Delivery service

Reviewers highlight positive aspects of delivery service, with many praising the quick shipping, secure... See more

Order

Clients share ambiguous opinions on order. Many reviewers praise the ease of ordering and fast delivery, with... See more

User experience

Customers consistently note positive experiences with user experience. Many reviewers highlight fast shipping... See more

Reviews shaping this summary

Rated 5 out of 5 stars

I purchased the SINISTER 7.3 Intake Elbow W/ Boots Kit. The only thing that I didn't like but I knew about before I ordered. Was that the kit doesn't come with the boots pictured. It comes with the up... See more

Rated 5 out of 5 stars

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... See more

Company replied

Rated 5 out of 5 stars

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... See more

Company replied

Rated 5 out of 5 stars

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 is... See more

Company replied


Company details

  1. Auto parts shop
  2. Car accessories shop

Information provided by various external sources

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.


Contact info

4.6

Excellent

TrustScore 4.5 out of 5

4K reviews

5-star
4-star
3-star
2-star
1-star

Replied to 66% of negative reviews

Typically replies within 48 hours

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Rated 3 out of 5 stars

Promo codes cannot by used with points…

Promo codes cannot by used with points earned from previous purchases.

14 December 2024
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Hi James, at this time no, we do not stack codes with other discounts. We work hard to provide the best customer service and quality products in the industry.

Rated 5 out of 5 stars

Great Customer Service. Reputable Business

Thank you for the honest and speedy reply. I expect that from a reputable business and very much appreciate it. I only wish you had an engine cover to fit my motor. Let me know if you decide to fabricate one for my vehicle. You have fine products. I appreciate the sincere call from Katie and adjusted my rating accordingly.

Original Post
I ordered an engine cover for my 1999 7.3L Powerstroke Ford F250 XLT. Got the part in a reasonable amount of time. It looked amazing and very well built. It didn't come close to fitting my motor. Tried calling customer service CS and was prompted to use the contact us link. I received an RMA in an email with instructions. I mailed it back at my expense ($57) requesting an exchange. I sent another note in the same fashion due to no mention of exchange. Katie
from CS called and left a message that this part did not fit early 1999 model years. Their website part description states, in part .."Fits 1999-2003 Powerstroke." I called Katie back and asked for a "return shipping" refund since this was not my mistake. She said no. Great product, poor return policy for legitimate returns.

3 December 2024
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Hi Doug, I forwarded this to Customer Service this morning. We appreciate the honest feedback and the opportunity to improve. You are correct, the website does need an update regarding that product, and as I understand, Katie has reached out to make sure you are being fully refunded. We work hard to provide a 5-star experience to each customer, and hope you will give us another chance in the future.

Rated 5 out of 5 stars

THE BEST LOOK….

I truly love what sinister diesels product did for the performance and appearance of my motor…Looking to purchase more…

27 November 2024
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

We appreciate your business!

Rated 5 out of 5 stars

Fast service for great products.

Fast service for great products.

10 October 2024
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Hi Brian, we are glad to hear that delivery was quick and that you are happy with your products. We work hard to make each experience 5-star. We appreciate your review & your business!

Rated 5 out of 5 stars

Satisfied customer

I was pleased with my purchase and customer service was excellent.

23 October 2024
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Hey Chris - so happy to hear that your customer experience was 5-star. We appreciate your review and your business!

Rated 1 out of 5 stars

Faulty gpcm

Received a faulty gpcm and sent it back for an exchange.

13 October 2024
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Hi Robert! Katie with our customer service department (she's the best!) said she was able to help you out with your order. She said given the opportunity that you would like to change your review. We work hard to provide a 5-star experience and hope we were able to make this right. Here are there instructions to edit your review. We appreciate your business and the chance to earn your business.
Log into their Trustpilot account, navigate to "My Reviews," locate the review they want to edit, click "Edit," make the necessary changes to the text and rating, and then submit the updated review

Rated 5 out of 5 stars

Fast delivery

Fast delivery ! Will use again

16 October 2024
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Hi Kathy! So glad to hear your order was delivered quickly. Thank you for your review & your business!

Rated 5 out of 5 stars

Top notch product and top notch…

Top notch product and top notch customer service! I was told originally that my turbo could be a 3-4 week wait but recieved it in about 2 weeks. Beautiful product that performs just as good as it looks!

24 September 2024
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Hi Jake - we work hard to provide a 5-star experience to each customer, happy to hear that we hit the mark with you. We appreciate your review & your business!

Rated 5 out of 5 stars

Parts ordered were packed well i…

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. Degas tank and coolant bypass filter kit both installed in less than an hour! Very pleased with the materials and workmanship on the parts, they look great. Will be making more upgrades to my 6.0L soon using Sinister Diesel parts!

7 September 2024
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Hey Bruce - we love to hear it! Thank you for your review & your business - we appreciate it.

Rated 5 out of 5 stars

Received my Order pretty quick.

Received my Order pretty quick.

20 September 2024
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Hi James - thank you for your 5-star review - we are glad to hear that your order arrived quickly. We appreciate your business.

Rated 5 out of 5 stars

I had a part missing

I had a part missing, and it was immediately shipped upon request.

20 August 2024
Unprompted review
Sinister Diesel logo

Reply from Sinister Diesel

Hi Jesse - we work hard to remedy any problems that come up as quickly as possible. We appreciate you reaching out and allowing us to correct the situation. Thank you for your review and your business!

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