Cargo carriedDriveaway/Towaway, Machinery, Large Objects
MCS-150 mileage81,291 mi (2025)
Phone (on file)(435) 529-7477
Sources: census record as of October 19, 2026; authority and insurance from FMCSA L&I, checked October 4, 2026; inspections and crashes from FMCSA SMS, checked October 4, 2026.
Quick answer
Mason Diesel Service INC is an interstate motor carrier in Aurora, Utah (USDOT 648965) with active operating authority and a self-reported fleet of 9 power units.
Key takeaways
USDOT 648965 is registered to Mason Diesel Service INC, an interstate carrier based in Aurora, UT.
MC docket number on file: MC-891709.
Operating authority status: authorized (Contract), with $750K BIPD insurance on file.
Self-reported fleet size: 9 power units and 4 drivers (FMCSA MCS-150 self-report; sanitized for plausibility).
Registered cargo types include driveaway/towaway, machinery, large objects.
Source: FMCSA Safety Measurement System, roadside inspections and crashes over a ~24-month window, checked October 4, 2026. An out-of-service rate is the share of inspections in which a vehicle or driver was placed out of service. With few inspections, one result moves the rate a lot. FMCSA crash records include crashes regardless of fault. None of these figures is a safety rating. The official Satisfactory/Conditional/Unsatisfactory safety rating is issued separately. See SAFER.
About Mason Diesel Service INC
Mason Diesel Service INC is an interstate motor carrier based in Aurora, Utah, registered with the FMCSA under USDOT 648965. It holds active operating authority (MC-891709), with $750K of BIPD insurance on file. The carrier self-reports a fleet of 9 power units and 4 drivers. Registered cargo includes driveaway/towaway, machinery, large objects. Its most recent MCS-150 filing reported 81,291 mi (2025).
Before you work with this carrier
Confirm the safety rating. Authority and insurance are shown or linked above. Open the SAFER snapshot for the official safety rating and out-of-service status.
Verify insurance is current. Coverage on file can lapse; confirm active BIPD/cargo before tendering a load.
Match authority to the work. For-hire loads need active operating authority. A USDOT number alone isn't enough.