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Truck Graph
75/100
✗ Do Not Tender
OOS rate 57.1% is critically above the national average.
Gerlock Towing
DOT 936545 · MC MC403455 · Portland, OR
Report generated: June 11, 2026 at 12:31 PM
✓Authorized for hire?
✓Active insurance?
✗Safety record clean?
✓No fraud flags?
✓No prior revocations?
Carrier Summary

Gerlock Towing (DOT 936545, MC MC403455) is a Oregon-based interstate carrier headquartered in Portland, OR. As of June 11, 2026 at 12:31 PM, operating authority is currently active. TruckGraph has detected 4 risk signals on this carrier, including: recordable crash on file; elevated driver out-of-service rate. TruckGraph rates this carrier "Do Not Tender" based on FMCSA compliance data, inspection history, insurance status, and network connection analysis. Last synced: June 11, 2026 at 12:31 PM.

Common Authority
FMCSA Public Record
Hckm LLC
Operating as: Gerlock Towing
DOT Number936545
MC NumberMC403455
Street7821 NE 33RD DR
City / StatePortland, OR 97211
Phone5032350542
Operation typeInterstate
HazmatNot authorized
Authority age25 yr 3 mo
MCS-150 filed03/30/2026
Company officerDonny Callahan
Power units19
Total drivers16
Authority Status
Common (for-hire)✓ Active
Contract (for-hire)Not authorized
BrokerNot authorized
TruckGraph Intelligence
Risk Signals
●Recordable crash on file
●Elevated driver out-of-service rate
●Elevated vehicle out-of-service rate
●Driver qualification violation on record
✓ OFAC Sanctions: Clear
Connection Chain
DOT nullShared insurer
Revoked
OOS rate 57.1% vs. national avg 22.26% — above average
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Power Units
19
Fleet
Drivers
16
Total
Inspections
7
On record
Crashes
2
On record
OOS Rate
57.1%
↑ Avg 22.26%
Authority Age
25 yr 3 mo
Since 2001
Violation Categories — Last 24 Months
Hours of Service
7 insp (100%)· 1 viol
Unsafe Driving
7 insp (100%)
Driver Fitness
7 insp (100%)· 1 viol
Controlled Substances
7 insp (100%)
Vehicle Maintenance
4 insp (57%)· 2 viol
Inspection History
7 total · OOS rate 57.1%
DateStateLevelDriver OOSVehicle OOSResult
12/26/2024WAII11OOS
1/25/2026MTIII00Pass
4/19/2025COIII10OOS
7/16/2024WAII01OOS
9/9/2024ORIII00Pass
7/8/2025WAI00Pass
10/1/2024ORII02OOS
Crash History
2 total on record
DateStateFatalitiesInjuriesTow-away
—OR00Y
—OR00Y
Insurance Status
Status
✓ Active filing on record
Insurer
HARTFORD FIRE INSURANCE COMPANY
Coverage type
84
Coverage amount
—
Effective
6/1/2011
Location
7821 NE 33RD DR, Portland, OR, 97211 · Open in Maps →
7821 NE 33RD DR, PORTLAND, OR, 97211Open in Maps →
Authority Timeline
Authority GrantedFeb 2001
FMCSA issued operating authority
ActiveCurrent
Authority currently active

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 Hckm LLC authorized to operate?

Yes. Hckm LLC holds Common operating authority and is currently active.

What is Hckm LLC's safety record?

Hckm LLC has 7 roadside inspections on record with an out-of-service rate of 57.1%. Crash history shows 2 incidents. Review the full safety profile above before making a freight decision.

How many trucks does Hckm LLC operate?

Hckm LLC operates 19 power units with approximately 16 drivers.

Is Hckm LLC insured?

Hckm LLC has active insurance coverage on file. Coverage amount and carrier details are shown in the insurance section above.

Has Hckm LLC had any risk indicators?

Hckm LLC has a risk score of 75/100 (Critical) with 4 active risk signals. Review the risk section above and verify independently before tendering.

What is the DOT number for Hckm LLC?

Hckm LLC's DOT number is 936545 and MC number is MC403455. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

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For journalists and researchers

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

APA
Truck Graph. (2026). Gerlock Towing Safety Record, DOT 936545. Retrieved from https://truckgraph.com/carriers/936545
MLA
"Gerlock Towing Safety Record, DOT 936545." Truck Graph, Jun 11, 2026, https://truckgraph.com/carriers/936545
Chicago
"Gerlock Towing Safety Record, DOT 936545." Truck Graph. Last modified June 11, 2026. https://truckgraph.com/carriers/936545