Authority Diesel Performance

"Knowledgeable staff and repairs done with integrity and longevity in mind."

"Came in because another shop couldnt diagnose a hot no start problem, the other shop said keep driving it till it wont start anymore. Brought it to Authority diesle and they diagnosed it as a faulty injection preasure regulator charged me $845 they showed me another issue that is looming. 1-2 months later im having the same issue , i was told over the phone its the dummy plug seals and stand pipe seals I cant go all the way to mcminnville again so i took it to a local guy, and told him he put preasure to the system and ,what do you know a serious leak , looks like stand pipe sealsand dummy plug seals hes working on it now."

"Honest and straightforward about any repairs needed as was very helpful in getting my truck built the right way for the power level I wanted. Took the time to explain and hear out my concerns and questions. Good pricing and transparent about the work schedule."

"Had Michael service my truck, lots of knowledge and friendly, really took the time to explain what was done, will definitely return !!!"

"Top notch service. Very thorough in repairs and upgrades."