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PFEIFER BROTHERS INC
Mazon, IL
CarrierChk vetting signal
No flags raised
Authority, insurance, safety rating and crash records checked
FMCSA status: Active & Authorized · DOT 307233 · MC 433925
No Safety Rating
Active 24 yrs, 1 mo
Broker Vetting Summary
Key signals from current FMCSA records
Authority
Active
MC-433925 · Common carrier
Insurance
On File
Acuity, A Mutual Insurance Company
Safety
Not Rated
4 inspections on record
✓ No risk flags found on authority or insurance records
Vetting notes
- Operating authority active for 24 yrs, 1 mo
- Insurance on file: $750,000
- 4 FMCSA inspections on record
Authority & Compliance
Authority, insurance and required filings
Operating Authority
MC433925
Common Carrier
Insurance on File
ACUITY, A MUTUAL INSURANCE COMPANY
BI&PD · $750,000 · Policy CA-X48477
Required Filings
Liability (BIPD)
$750,000
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
307233
MC Number
MC-433925
Safety Rating
Not Rated
Entity Type
Corporation
Operation Classification
Authorized for hire
MCS-150 Filed
April 10, 2025
FMCSA Registration
December 28, 1987
Authority Granted
August 5, 2002
Annual Mileage
165,000 mi (2024)
Contact Information
Address
606 South Street, Mazon, IL 60444
Phone
Email
Owner / Officer
Kurt Pfeifer
Cargo Types
General FreightGrain/FeedDry Bulk
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
4
Driver Inspections
2
Vehicle Inspections
3
Out-of-Service Violations
0
Violations by Category
Vehicle Maintenance0
Unsafe Driving0
Hours of Service0
OOS Rates vs. National Average
Inspection Trend by Year
2026
2025
2024
Violation Rate by Category
Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.
Unsafe Driving
0 of 1 inspections
Hours of Service
0 of 1 inspections
Driver Fitness
0 of 1 inspections
Controlled Substances
0 of 1 inspections
Crash History (1)
Crashes reported to FMCSA in the last 24 months. A crash appearing here is a reported event, not a finding of fault.
1
Crashes
0
Fatalities
0
Injuries
1
Tow-aways
| Date | State | Fatal | Injured | Tow | Conditions |
|---|---|---|---|---|---|
| August 28, 2024 | IL | — | — | Yes | No Adverse Conditions · Daylight · Wet |
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
IL3
Fleet & Equipment (2)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~1
of 4 reported to FMCSA
Trailers
~1
seen at inspection
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2013 Kenworth T8 Series | Tractor · Class 8 | 1XKDD79X9DJ358006 | 3 | — |
| 2018 Benson/wabash Aluminium Flatbed | Flatbed · 48 ft | 1TTF482A7J3068707 | 2 | — |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
Inspection Details
Each roadside inspection with its violations
Inspection Records (4)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| September 14, 2026 | 5005330012 | 033 - WILLIAMSVILLE - I-55 S/B, IL | II | — | — | UCP | Truck Tractor Semi-trailer |
KW BENS |
1XKDDU9X43J396563 1TTF482A5G3959667 |
IL P919205 IL 568046ST |
| January 23, 2025 | 4290180019 | 008 - BOLINGBROOK - I-55 S/B, IL | III | — | — | NONE | Truck Tractor |
KENWORTH |
1XKDD79X9DJ358006 |
IL P1007147 |
| June 27, 2024 | 4069701670 | INTERSECTION OF BRISBIN RD AND, IL | II | 1 | — | — | Truck Tractor Semi-trailer |
KENWORTH BENSON/WABASH |
1XKDD79X9DJ358006 1TTF482A7J3068707 |
IL P1007147 IL 620861ST |
| 392.2MI | Miscellaneous Traffic Law Violation | |||||||||
| May 15, 2024 | 0109000806 | 018-BOLINGBROOK -I-55 N/B, IL | I | — | — | — | Truck Tractor Semi-trailer |
KENWORTH BENSON/WABASH |
1XKDD79X9DJ358006 1TTF482A7J3068707 |
IL P1007147 IL 620861ST |
Shippers Seen at Inspections
Shipper names recorded by roadside inspectors over roughly the last three years. Only inspected loads appear, so this is a sample of who the carrier hauls for, not a complete customer list. Names are as entered at the roadside; blanks and placeholders such as “N/A” or “same as carrier” are left out.
| Shipper | Inspections | Most recent |
|---|---|---|
| UCP | 1 | September 14, 2026 |
History & Filings
Authority, insurance and process-agent records
Authority History
| Date | Status | Type |
|---|---|---|
| August 5, 2002 | GRANTED | Common Carrier |
Insurance & Revocation Filings
| Date | Type | Status |
|---|---|---|
| July 30, 2012 | BI&PD Primary/Excess | On file |
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Data sourced from FMCSA MCMIS via Socrata. Record last updated: September 28, 2026.
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