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WHILLOCK CONTRACTING INC
El Cajon, CA
CarrierChk vetting signal
No flags raised
Authority, insurance, safety rating, crash records and out-of-service rates checked
FMCSA status: Active registration · no operating authority · DOT 2886192
Active
No Safety Rating
Broker Vetting Summary
Key signals from current FMCSA records
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Not Rated
9 inspections on record
✓ No risk flags found on authority or insurance records
Vetting notes
- Active FMCSA registration, but no active for-hire operating authority on record
- Registered with FMCSA as a private carrier — not registered to haul other companies' freight for hire
- No active insurance filing found on record
- 9 FMCSA inspections on record
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
2886192
Safety Rating
Not Rated
Operation Classification
Private (property)
MCS-150 Filed
February 21, 2026
FMCSA Registration
May 3, 2016
Annual Mileage
165,420 mi (2025)
Contact Information
Address
346 Front St, El Cajon, CA 92020
Phone
Email
Owner / Officer
Mark B Whillock
Officer 2
Tory M Whillock
Cargo Types
Building MaterialsConstruction MaterialsOther Cargo
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
9
Driver Inspections
4
Vehicle Inspections
3
Out-of-Service Violations
4
Violations by Category
Vehicle Maintenance14
Unsafe Driving5
Hours of Service0
OOS Rates vs. National Average
Inspection Trend by Year
2025
2024
2023
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.
Vehicle Maintenance
1 of 1 inspections
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
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
CA8
Fleet & Equipment (5)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~3
of 5 reported to FMCSA
Trailers
~2
seen at inspection
Equipment types observed
Semi-trailer
2
Truck
2
Tractor
1
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2018 Peterbilt 367 | Truck · Class 8 | 1NPTL40X2JD482854 | 4 | 2 |
| Coza | Semi-trailer | 1C9G44207K1167180 | 1 | — |
| 2020 Peterbilt 567 | Truck · Class 8 | 1NPCX4EX4LD631975 | 1 | — |
| 2024 Peterbilt 567 | Tractor · Class 8 | 1XPCD40X2RD703304 | 1 | — |
| Ziem | Semi-trailer | ZP51735 | 1 | 1 |
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 (9)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| June 25, 2025 | NAAL000236 | CONYON ST JNO SR-52, CA | I | 6 | 2 | — | Straight Truck |
PETERBILT |
1NPTL40X2JD482854 |
CA 20095K2 |
| 392.2-SLLEWG3 | OOSState/Local Laws - Excessive weight - More than 5000 lbs over on allowable gross weight | |||||||||
| 393.134B-CRHLC | OOSRoll-on/Roll-off/Hook Lift Containers - Improper securement of a roll-on/roll-off and hook lift container | Improper Load Securement | ||||||||
| 393.81-H | Horn - Inoperative or defective | Other Vehicle Defect | ||||||||
| 393.95A4-EEUS | Emergency Equipment - Fire Extinguishers - unsecured | Emergency Equipment | ||||||||
| 392.2-SLLEQP | State/Local Laws - Violation of state and local law - Equipment violation. | |||||||||
| 392.2-SLLEQP | State/Local Laws - Violation of state and local law - Equipment violation. | |||||||||
| August 23, 2024 | UE68000133 | DOGWOOD RD AT ATEN RD, CA | II | 2 | — | NONE | Straight Truck |
PETERBILT |
1NPTL40X2JD482854 |
CA 20095K2 |
| 393.9 | Inoperable Required Lamp | Clearance Identification Lamps/Other | ||||||||
| 392.16 | Failing to use seat belt while operating a CMV | Seat Belt | ||||||||
| August 20, 2024 | NAA5001861 | 346 FRONT STREET, CA | V | 4 | 1 | — | Semi-trailer |
ZIEM |
ZP51735 |
CA 1VT2792 |
| 396.3A1BOS | BRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination | Brake Out Of Service | ||||||||
| 393.9 | Inoperable Required Lamp | Clearance Identification Lamps/Other | ||||||||
| 392.2 | Violation of Local Laws - Explain | |||||||||
| 393.75C | Tire-other tread depth less than 2/32 of inch measured in a major tread groove | Tires | ||||||||
| August 20, 2024 | NAA5001860 | 346 FRONT STREET, CA | V | — | — | — | Straight Truck |
PETERBILT |
1NPTL40X2JD482854 |
CA 20095K2 |
| August 20, 2024 | NAA5001859 | 346 FRONT STREET, CA | V | — | — | — | Truck Tractor Semi-trailer |
PETERBILT COZA |
1XPCD40X2RD703304 1C9G44207K1167180 |
CA 9G96566 CA 4AY7810 |
| August 20, 2024 | NAA5001858 | 346 FRONT STREET, CA | V | — | — | — | Straight Truck |
PETERBILT |
1NPCX4EX4LD631975 |
CA 76745D3 |
| May 17, 2024 | UCSM003051 | E/B SR-52 W/OF MAST, CA | III | 2 | 1 | — | Straight Truck |
PETERBILT |
1NPTL40X2JD482854 |
CA 20095K2 |
| 392.9A1 | OOSFailing to secure cargo as specified in 49 CFR 393.100 through 393.142 | General Securement | ||||||||
| 392.2LV | Lane Restriction violation | Misc Violations | ||||||||
| March 26, 2024 | UCRF003706 | SAN DIEGO, CA | III | 3 | — | — | Straight Truck |
PTRB |
1NPTX4EX5KD612155 |
CA 46017P2 |
| 392.2-SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Speeding 2 | ||||||||
| 392.2LV | Lane Restriction violation | Misc Violations | ||||||||
| 392.2RG | State vehicle registration or License Plate violation | |||||||||
| December 28, 2023 | UCRF003446 | SAN DIEGO, CA | I | 9 | — | — | Straight Truck |
PETERBILT |
1NPCX4EX4LD631975 |
CA 67445D3 |
| 392.2LV | Lane Restriction violation | Misc Violations | ||||||||
| 392.2 | Violation of Local Laws - Explain | |||||||||
| 393.43 | No/improper breakaway or emergency braking | Brakes All Others | ||||||||
| 393.60C | Windshield - Damaged or Discolored | Windshield/ Glass/ Markings | ||||||||
| 393.11 | No or defective lighting devices or reflective material as required | Reflective Sheeting | ||||||||
| 396.3A1 | Inspection, repair and maintenance of parts and accessories | Wheels Studs Clamps Etc. | ||||||||
| 392.2 | Violation of Local Laws - Explain | |||||||||
| 393.45B2 | Brake hose or tubing chafing and/or kinking | Brakes All Others | ||||||||
| 393.45B2 | Brake hose or tubing chafing and/or kinking | Brakes All Others | ||||||||
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Data sourced from FMCSA MCMIS via Socrata. Record last updated: October 11, 2026.
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