USDOT 2503288 · Interstate · Texas

Quality Mufflers Incorporated

DBA San Antonio Quality Metals

US DOT2503288

Operating authorityNo for-hire authority on file

Insurance on fileNot on file

Safety ratingCheck on SAFER →

OperationInterstate

Census statusActive

ClassificationPrivate carrier

Power units (fleet)14

Drivers8

LocationSan Antonio, TX 78237

Cargo carriedGeneral Freight, Metal: sheets, coils, rolls, Motor Vehicles, Logs, Poles, Beams, Building materials / construction, Machinery, Large Objects, Passengers, Dry Bulk, Utility

MCS-150 mileage10,000 mi (2024)

Phone (on file)(210) 627-6025

HazmatYes, hazardous materials

Sources: census record as of November 9, 2026; authority and insurance from FMCSA L&I, checked November 2, 2026; inspections and crashes from FMCSA SMS, checked November 2, 2026.

Quick answer

Quality Mufflers Incorporated is an interstate motor carrier in San Antonio, Texas (USDOT 2503288) with no for-hire authority on file (typical for private/intrastate carriers) and a self-reported fleet of 14 power units.

Key takeaways

USDOT 2503288 is registered to Quality Mufflers Incorporated, an interstate carrier based in San Antonio, TX.
No FMCSA operating authority on file. Interstate for-hire carriers need it; private carriers and intrastate-only carriers generally do not.
Self-reported fleet size: 14 power units and 8 drivers (FMCSA MCS-150 self-report; sanitized for plausibility).
Registered cargo types include general freight, metal: sheets, coils, rolls, motor vehicles, logs, poles, beams.

Safety & inspections

Official rating on SAFER →

23InspectionsFMCSA roadside, 24 months

3 of 23Vehicle inspections with an out-of-service order13.0%

1 of 23Driver inspections with an out-of-service order4.3%

Source: FMCSA Safety Measurement System, roadside inspections and crashes over a ~24-month window, checked November 2, 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 Quality Mufflers Incorporated

Quality Mufflers Incorporated is an interstate motor carrier based in San Antonio, Texas, registered with the FMCSA under USDOT 2503288. It has no for-hire operating authority on file, which is typical for a private or intrastate carrier. The carrier self-reports a fleet of 14 power units and 8 drivers. Registered cargo includes general freight, metal: sheets, coils, rolls, motor vehicles, logs, poles, beams, building materials / construction. Its most recent MCS-150 filing reported 10,000 mi (2024).

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.

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