About Fleet Authority
Fleet Authority, located at 13305 University Blvd in Gainesville, Virginia, provides in-shop diesel repair and engine diagnostics for commercial fleets and owner-operators throughout the northern Virginia region. The shop is ASE Certified and specializes in diesel-specific work, serving equipment owners across a 15-mile radius that includes Manassas, Chantilly, Manassas Park, and Sterling. Whether you're based locally or passing through the I-66 corridor, the operator handles diagnostics, repairs, and maintenance for trucks and heavy-duty equipment. Call (703) 691-2100 for diesel service.
Gallery
Our Services
ASE Certified
Engine Diagnostics
Diesel Specialist
Commercial & Fleet
Customer Reviews
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Verified Customer
Google Review
Our church and school have been relying on Phil at Fleet Authority for over 5 years to solve the unsolvable as well as to handle everything automotive in our small 'fleet'. When our 2006 Ford 450 diesel activity bus refused any attempt to ...
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Verified Customer
Google Review
Response from the owner
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Verified Customer
Google Review
I took our company box truck to Fleet Authority after seeing such great reviews. I previously utilized a dealership's commercial truck repair department but it just did not "feel" right even after the work was done. Phil reminds me of the ...