393.53C-B — Steering system components worn

FMCSA violation code under Vehicle Maintenance. 1,019 events recorded in roadside inspections. Severity weight: 7.

Severity Weight
7
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
1,019
Code
393.53C-B
Code System
FMCSR
BASIC Category
OOS Eligible
No
Severity Weight
7
Violation Group
Total Events
1,019
Carriers Cited
439

Violation Description

Steering system components (universal joints, ball joints, tie rods, drag links, pitman arms) are worn, fatigued, or defective.

About This Violation Code

Code 393.53C-B falls under the Vehicle Maintenance BASIC category in FMCSA's Safety Measurement System (SMS). It carries a severity weight of 7 (scale 1-10, higher = more severe).

When this violation is cited during a roadside inspection, it contributes to the carrier's Vehicle Maintenance BASIC score. Carriers with high BASIC percentiles may be prioritized for FMCSA interventions including warning letters, investigations, or compliance reviews.

Regulatory Reference

Federal Motor Carrier Safety Regulations

This violation references 49 CFR 393.53C in the Federal Motor Carrier Safety Regulations.

Events (all time)
1,019
OOS Events
0
OOS Rate
0.0%
Top State (180d)
US
130 events

Top Enforcing States

Where 393.53C-B is most commonly cited (last 180 days)

1.US
130
OOS 0.0%
2.Pennsylvania
3
OOS 0.0%
3.California
2
OOS 0.0%
4.Oregon
1
OOS 0.0%
5.Nebraska
1
OOS 0.0%
6.Hawaii
1
OOS 0.0%
7.Mississippi
1
OOS 0.0%

Click a state to see roadside inspection activity, top stations, and carrier profiles in that jurisdiction.

Citation Trend (12 months)

Monthly count of 393.53C-B citations. Red bars mark months with OOS-triggering citations.

23
Apr
47
May
61
Jun
57
Jul
45
Aug
32
Sep
49
Oct
34
Nov
27
Dec
32
Jan
9
Feb
12
Mar
1
Apr

Most Active Stations

Inspection stations citing 393.53C-B most often (last 180 days)

1.NOGALES AZ
59
OOS 0.0%
2.LAREDO TX
57
OOS 0.0%
3.DOUGLAS AZ
8
OOS 0.0%
4.EL PASO TX
4
OOS 0.0%
5.CALEXICO IF
2
OOS 0.0%
6.PA
1
OOS 0.0%
7.CALEXICO CA
1
OOS 0.0%
8.COTULLA TX
1
OOS 0.0%
10.HAPPY VALLEY OR
1
OOS 0.0%

Often Cited Together

Other violations commonly found on the same inspection (last 90 days)

Top Carriers Cited

Ranked by frequency • 439 carriers total • Page 1 of 18

Recent Inspections

Latest inspections where 393.53C-B was cited • 1,019 total events • Page 1 of 41

Recent Inspections with 393.53C-B

Showing 25 of 1,019

fmcsa-inspections
Recent Inspections with 393.53C-B
DateReport #StateLevelOOS
Apr 1, 202687474507USLevel 1No
Mar 30, 202687436691USLevel 1No
Mar 25, 202687425715USLevel 1No
Mar 24, 202687389668USLevel 1No
Mar 21, 202687387783CALevel 1No
Mar 21, 202687387781CALevel 1No
Mar 18, 202687339821USLevel 1No
Mar 17, 202687382028USLevel 1No
Mar 10, 202687258617USLevel 1No
Mar 10, 202687302134NELevel 1No
Mar 5, 202687222517USLevel 1No
Mar 2, 202687196101USLevel 1No
Mar 2, 202687196104USLevel 1No
Feb 24, 202687134835USLevel 1No
Feb 24, 202687134869USLevel 1No
Feb 23, 202687126263USLevel 1No
Feb 16, 202687059507USLevel 1No
Feb 16, 202687058438USLevel 1No
Feb 11, 202687026086USLevel 1No
Feb 10, 202687014248USLevel 1No
Feb 10, 202687014484USLevel 1No
Feb 9, 202687041527USLevel 1No
Jan 30, 202686935554HILevel 1No
Jan 29, 202687401657USLevel 1No
Jan 29, 202686934443USLevel 1No

Data sources & freshness

FMCSA Vehicle Inspections and Violations
Unknown freshness
Federal Motor Carrier Safety Regulations (49 CFR)
Unknown freshness