Fleet typeIdentity
Owner-operator
2 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 3765638 ·
Mason Supply Source LLC
DBA STONEWORKS
2 power unitsavg 19.5 yrLocal · 1 statesISLANDIA, NY81/100
AUTHORITY STATUS UNKNOWN
Observed fleet · trailing 24 mo daily
2Power units
2 observed · MCS-150
—Trailers seen
None observed · 24 mo
19.5Avg age (yr)
2006–2007 · vPIC
Click to see how we scored it
Load decision ·
Review before loading
Operating, but with flags a broker should weigh before tendering freight.
Watch · 2
In good standing · 1
Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersOlder
19.5 yr
Model years 2006–2007 · peer benchmark unavailable.
Identity stabilityStable
4 yr unchanged
Same registration since 2021 — no chameleon / reincarnation signal.
Cross-border activity
No border inspections on record
A named inspection location does not confirm a border transit or operating authority. Counts cover retained inspection records.
Safety and violations
Violation data is not available for this carrier right now.
Verification summary
MASON SUPPLY SOURCE LLC (USDOT 3765638) has a Vektor safety score of 81/100 and a Review before loading verdict, from the carrier's FMCSA record. FMCSA profile data as of Nov 2, 2026.
The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available. FMCSA authority data as of Nov 2, 2026.
It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available. FMCSA insurance data as of Nov 2, 2026.
Its vehicle out-of-service rate was 33.3% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data. FMCSA safety data as of Nov 3, 2026.
The carrier received 7 roadside inspections in the last 24 months — 6 vehicle-level and 7 driver-level — across 1 state, according to FMCSA roadside-inspection data. FMCSA operations data as of Nov 3, 2026.
The carrier has 0 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available. FMCSA safety data as of Nov 3, 2026.
It reports 2 power units and 1 driver in its most recent MCS-150 filing dated Apr 13, 2026. FMCSA identity data as of Nov 2, 2026.
It has no FMCSA-assigned safety rating in the federal record. FMCSA identity data as of Nov 2, 2026.
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Frequently asked
What is MASON SUPPLY SOURCE LLC's USDOT number?
MASON SUPPLY SOURCE LLC's USDOT number is 3765638.
Is MASON SUPPLY SOURCE LLC authorized to operate?
FMCSA authority data as of Nov 2, 2026. MASON SUPPLY SOURCE LLC is active in the FMCSA register.
What is MASON SUPPLY SOURCE LLC's safety record?
MASON SUPPLY SOURCE LLC has a 33.3% vehicle out-of-service rate (national average 22.26%) across 10 roadside inspections, with 0 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor's computed risk score is 81/100 (tier: review).
How big is MASON SUPPLY SOURCE LLC's fleet?
MASON SUPPLY SOURCE LLC operates 2 power units and 1 driver per its most recent MCS-150 filing.
Where is MASON SUPPLY SOURCE LLC based?
MASON SUPPLY SOURCE LLC is based in ISLANDIA, NY, with roadside inspections recorded across 1 state.
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