Roadside Inspection 88818659

Roadside inspection on Aug 25, 2026 in Colorado • Carrier: DONALD & DEAN ZARBOCK (USDOT 521059) • Vehicle: KENWORTH TRUCK TRACTOR

Vehicle: OK Driver: OK CVSA L2
Units Inspected
2
Total Violations
2
OOS Violations
0
Inspection Level
Level 2

Inspection Details

Key facts from the FMCSA inspection record.

Inspection #:
88818659
Date:
Aug 25, 2026
State:
Colorado
Type:
Units inspected:
2
Violations:
2
HazMat:
No
Inspection site:
STERLING CO
Vehicle:
KENWORTH W9 Series TRUCK TRACTOR
Plate:
529DAR (CO)

What this inspection means

2 violations were recorded, but no out-of-service order was issued.

Cited issues fall mainly under Vehicle Maintenance, with a combined severity weight of 9.

Compared to the median Level 2 inspection nationwide in 2026, this is a slightly above typical result.

Severity context

How mild, normal, or severe was this inspection compared to its carrier, state, and station?

vs Level 2 median in Colorado
2
Heavier than median (1)
Median of 11,613 Level 2 inspections in Colorado during 2026
vs typical at STERLING CO
2
Heavier than station median (1)
Median of 36 inspections at this station in the trailing 12 months

How this compares

National peer benchmarks for inspections at this level.

Violations vs Level 2 median
2
1 more than the median (1)
Compared to 550,848 Level 2 inspections nationwide in 2026
OOS at this inspection
No
Cohort OOS rate: 28.9%
Out-of-service rate across all Level 2 inspections in 2026

Units Inspected

2 unit(s) covered by this inspection.

Seq Type VIN Plate Make Model Year OOS
1 TRUCK TRACTOR 1XKWDR9X2TR719614 CO 529DAR KENWORTH W9 Series 2026
2 SEMI-TRAILER 1TDH4222XDB136826 CO DFL891 TIMPTE, INC Timpte 2013

Violations Cited

2 violation(s) recorded against this inspection.

Code Description Severity Wt BASIC OOS
393.75C-TAOTD-LT2/32 Tire tread depth insufficient (other axles) 5 Vehicle Maintenance
396.17C-PI Operating a CMV without documentation of a periodic inspection. 4 Vehicle Maintenance

Violation categories (BASICs)

Federal behavior-analysis-and-safety-improvement buckets for the cited violations.

Other inspections of these vehicles

History for the VINs recorded on this inspection.

Inspection Date State Level VIN OOS
85702726 Sep 5, 2025 CO L3 1TDH4222XDB136826
85702726 Sep 5, 2025 CO L3 1XKWDR9X2TR719614
78508796 May 2, 2023 CO L3 1TDH4222XDB136826
78508796 May 2, 2023 CO L3 1XKWDR9X2TR719614

Related records

Recent activity at STERLING CO

Other carriers inspected here recently.

Inspection Date Carrier Violations OOS
88818224 Aug 25, 2026 PROGRESSIVE AGRICULTURAL MANAGEMENT LLC 1
87159518 Feb 25, 2026 OINK LLC 1
86085219 Oct 16, 2025 MEGATRUCKS LOGISTICS INC 1
86076376 Oct 15, 2025 T-T TRUCKING LLC 1
86076240 Oct 15, 2025 NAVAJO EXPRESS INC 1
86063154 Oct 14, 2025 IDONEUS INC 1