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Retrofit Engineering & Design LLC is a shop that transforms the ordinary into the memorable. We find solutions to challenging problems, then offer them to our customers in the form of high quality products. Follow us on social media @retrofitbuilt
All Feedback (768)
- e***4 (132)- Feedback left by buyer.Past 6 monthsVerified purchaseShipping was timely and the items were packaged well. The kit was as described and met my needs so overall good value. I would buy from this seller again.
- c***c (878)- Feedback left by buyer.Past 6 monthsVerified purchaseGreat to work with! I ordered the wrong upper hose and they sent the correct one immediately. They corrected what was my mistake and did not charge for it. I will buy from them again!
- f***v (379)- Feedback left by buyer.Past monthVerified purchaseJesse is awesome! The first order didn’t show tracking because of USPS and Jesse immediately sent out a new set of hoses and said if I received the first set to just keep them and ebay wont let me send Jesse money to cover the first set. I would definitely order from Jesse again.
- j***0 (196)- Feedback left by buyer.Past 6 monthsVerified purchaseGreat seller! Contact seller for help with fitment, did a great job and sent me the right parts. I didn’t even need the splice to cut down the length, fitment was correct.
- c***5 (1021)- Feedback left by buyer.Past monthVerified purchaseExcellent service, was unsure which hose for my swap and seller offered to swap out for free if it was wrong. It was too long and true to their word they sent a different one that worked perfectly. A+++ would recommend anytime.
- 5***i (783)- Feedback left by buyer.Past 6 monthsVerified purchaseItem as described, packaged well and quick shipping. Thanks
Reviews (3)

18 Aug, 2025
Quality used part, just what I needed. T...
Quality used part, just what I needed. Thanks.

19 Sep, 2018
Worked on a 2007 Mazda 6, FCC ID KPU41788.
Using instructions from YouTube, I was able to program this for a 2007 Mazda 6. Just for reference, the FCC ID for this part number is KPU41788.

03 Jun, 2024
Exactly what I needed. Thank you for providing those hard to find terminals in small quantities!
Exactly what I needed. Thank you for providing those hard to find terminals in small quantities!