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Truck Graph
20/100
✗ Do Not Tender
No active for-hire authority. Cannot legally haul freight for hire.
Thunderbird Trucking
DOT 4174846 · Milton, IA
Report generated: June 5, 2026 at 7:30 AM
✗Authorized for hire?
✗Active insurance?
✓Safety record clean?
✓No fraud flags?
✓No prior revocations?
Carrier Summary

Thunderbird Trucking (DOT 4174846) is a Iowa-based interstate carrier headquartered in Milton, IA. As of June 5, 2026 at 7:30 AM, operating authority is active but without for-hire authority. TruckGraph has detected 2 risk signals on this carrier, including: unsafe driving violation on record; no active insurance filing on record. TruckGraph rates this carrier "Do Not Tender" based on FMCSA compliance data, inspection history, insurance status, and network connection analysis. Last synced: June 5, 2026 at 7:30 AM.

FMCSA Public Record
Grant Weiler
Operating as: Thunderbird Trucking
DOT Number4174846
MC Number—
Street805 E HIGHWAY 2
City / StateMilton, IA 52570-9632
Phone6609566177
Operation typeInterstate
HazmatNot authorized
Authority age2 yr 5 mo
MCS-150 filed09/03/2025
Company officerGrant Weiler
Power units1
Total drivers1
Authority Status
Common (for-hire)—
Contract (for-hire)—
Broker—
TruckGraph Intelligence
Risk Signals
●Unsafe driving violation on record
●No active insurance filing on record
✓ OFAC Sanctions: Clear
Connection Chain
DOT nullShared insurer
Revoked
OOS rate 0.0% vs. national avg 22.26% — below average
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Power Units
1
Fleet
Drivers
1
Total
Inspections
2
On record
Crashes
0
On record
OOS Rate
0.0%
↓ Avg 22.26%
Authority Age
2 yr 5 mo
Since 2024
Violation Categories — Last 24 Months
Hours of Service
2 insp (100%)
Unsafe Driving
2 insp (100%)· 1 viol
Driver Fitness
2 insp (100%)
Controlled Substances
2 insp (100%)
Inspection History
2 total · OOS rate 0.0%
DateStateLevelDriver OOSVehicle OOSResult
6/15/2024IAIII00Pass
1/4/2025IAIII00Pass
Crash History
0 total on record

No crash records on file.

Insurance Status
⚠ No active insurance filing on record
Verify insurance directly with carrier before tendering any load.
Location
805 E HIGHWAY 2, Milton, IA, 52570-9632 · Open in Maps →
805 E HIGHWAY 2, MILTON, IA, 52570-9632Open in Maps →
Authority Timeline
Authority GrantedJan 2024
FMCSA issued operating authority
Active USDOT — No for-hire authorityCurrent
USDOT record is active but no for-hire operating authority is currently granted

Source: FMCSA compliance records, inspection data, crash records, insurance filings, and TruckGraph analysis. View methodology

Important Legal Notice

Data sourced from FMCSA public records and TruckGraph independent analysis. This is not legal advice, not a guarantee of carrier safety, and not a compliance certification. Verify through official FMCSA sources before tendering. Last synced: .

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Frequently Asked Questions

Is Grant Weiler authorized to operate?

Grant Weiler's USDOT number is active but it does not hold operating authority for for-hire interstate operations. It may operate as a private carrier. Verify status before tendering.

What is Grant Weiler's safety record?

Grant Weiler has 2 roadside inspections on record with an out-of-service rate of 0.0%. Crash history shows 0 incidents. Review the full safety profile above before making a freight decision.

How many trucks does Grant Weiler operate?

Grant Weiler operates 1 power units with approximately 1 drivers.

Is Grant Weiler insured?

Insurance filing details are not available in the current dataset. Verify directly with the carrier before tendering.

Has Grant Weiler had any risk indicators?

Grant Weiler has a risk score of 20/100 (Caution) with 2 active risk signals. Review the risk section above and verify independently before tendering.

What is the DOT number for Grant Weiler?

Grant Weiler's DOT number is 4174846. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

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Truck Graph data is open and citable. For press inquiries, contact our editorial team.

APA
Truck Graph. (2026). Thunderbird Trucking Safety Record, DOT 4174846. Retrieved from https://truckgraph.com/carriers/4174846
MLA
"Thunderbird Trucking Safety Record, DOT 4174846." Truck Graph, Jun 5, 2026, https://truckgraph.com/carriers/4174846
Chicago
"Thunderbird Trucking Safety Record, DOT 4174846." Truck Graph. Last modified June 5, 2026. https://truckgraph.com/carriers/4174846