Why Choose Us?
We give exceptional service with quality warranted parts. Our mission is making sure the job is done right so that our clients can be on the road, worry-free. Your safety is our top priority.
From brakes and rotors to full engine and transmission repair, and everything in between, we can repair, maintain, and upgrade anything.
Skip the hassle of a tow and enjoy the convenience of our technicians coming to you.
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Rocky Mountain Fleet & Diesel was founded by a mechanic that has over 20 years of experience in the automotive industry. Learn more about him here.
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Diagnosis, inspections, maintenance, repair, and upgrades. Contact us with any questions here.
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We are based out of Longmont, but service the entire Front Range and Denver Metro region. Get a quote here.
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Improve your driving experience! Upgrades can range from practical daily-driver enhancements to major performance and aesthetic modifications. Let us know what you are looking for here.
we Proudly support our heroes
10% off for all military, active and veteran, and first responders, including police officers, firefighters, paramedics, EMTs, and dispatchers