Great company
Super helpful and answered all my questions. Helped me pick right product. And they're price was best hands down. The shipping was very quick too.
By Justin B.
Saturday, November 7, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
724 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Shop Aftermarket Diesel Parts for your Cummins, Powerstroke, Duramax, or any Diesel Vehicle. We specialize in quality products with better customer service!
Diesel Ops (dieselops.com) has 724 customer reviews on The Fair Hearing, with an average rating of 4.7 out of 5.
724 approved reviews, newest moderated first
Super helpful and answered all my questions. Helped me pick right product. And they're price was best hands down. The shipping was very quick too.
By Justin B.
I order the wrong part and was very helpful in exchange it
By blain
Quality Products, fair price, fast delivery! Enough said.
By Customer
I highly recommend the upgraded radiator hoses for powerstrokes
By Ron F.
Happy received all the parts for the kit quickly and good quality. My 6.7 f250 is a beast now and no more CEL wish I would have done this before taking to dealership
By JD
Guy was great help on the phone, and parts came fast. Will come back again for more parts. And definitely recommend Diesel Ops
By B-
Had an awesome experience dealing with Diesel Ops. Everything was quick and smooth.
By Clayton S.
Corey helped with questions I had, great guy to work with!
By Judd