Fleet typeIdentity
Small fleet
247 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 300960 · MC-170956
STONE TRANSPORT LIMITED PARTNERSHIP
DBA STONE TRANSPORT
247 power unitsavg 6.4 yrMulti-region · 15 statesSAGINAW, MI
CARRIER ACTIVEMC-170956 ACTIVERATED SATISFACTORY
Observed fleet · trailing 24 mo daily
247Power units
237 observed · MCS-150
261Trailers seen
Decoded · vPIC
6.4Avg age (yr)
1997–2026 · vPIC
Click to see how we scored it
Load decision · FMCSA snapshot · 2026-07-18
Review before loading
Operating, but with flags a broker should weigh before tendering freight.
Active operating authorityInsurance on fileVehicle out-of-service rate well above average
Watch · 2
Operating authority3838 yr active
since 1987Insurance (BIPD)On file
FMCSA L&IVehicle OOS · 24mo34.934.9 %
▲ 22.26% nat'lCrashes · fatal1515
35 in 24moVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersTypical
6.4 yr
Model years 1997–2026 · peer benchmark computing.
Identity stabilityStable
38 yr unchanged
Same registration since 1987 — no chameleon / reincarnation signal.
AI readFull read
Is STONE TRANSPORT LIMITED PARTNERSHIP safe to work with?
Is STONE TRANSPORT LIMITED PARTNERSHIP safe to load? STONE TRANSPORT LIMITED PARTNERSHIP (USDOT 300960, MC-170956) is an active small-fleet motor carrier based in SAGINAW, MI, operating 247 power units and 225 drivers. Operating authority has been active 38 years (past the 24-month broker-confidence threshold). Across 681 roadside inspections, its vehicle out-of-service rate is 34.9% (above the 22.26% national average), with 35 reportable crashes in the last 24 months. FMCSA rates it Satisfactory. Vektor rates it review before loading (74/100), with the leading concern: vehicle out-of-service rate well above average. Source: FMCSA SAFER/MCMIS, last updated 2026-07-18.
FMCSA fields + Vektor analysis · updated 2026-07-18
STSTONE TRANSPORT LIMITED PARTNERSHIP 74
01
Safety
681 inspections · 24 mo · vs national benchmarks
Out-of-service rate· trailing 24 months vs national benchmark
Vehicle OOS 34.9% (24-mo)321 veh insp · 24-mo · nat'l 22.26%
050%nat'l 22.26%
Driver OOS 1.4% (24-mo)435 drv insp · 24-mo · nat'l 6.67%
030%nat'l 6.67%
OOS trajectory· trailing 6-mo vehicle-OOS rate vs national
34.0% now● Stable
Inspection coverage· expected vs observed · the fraud signal
Inspection coverage
How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.9 / unit·yr
thin signalabundant signal
Within the expected band for a 247-unit fleet — FMCSA has inspected this carrier often enough that the out-of-service and violation signals above are statistically trustworthy.
- Registered power units
- 247
- Inspections · 24 mo
- 435
- Annualized
- ≈218 / yr
- Coverage
- ≈0.9 inspections / unit · yr
Violation themes· decoded · grouped by BASIC
What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.
- 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving368
- 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance142 · 126 OOS
- 393.47 Brake actuators / linings / componentsVehicle Maintenance96
- 393.9 Inoperative required lampsVehicle Maintenance91 · 19 OOS
- 396.3 Inspection / repair / maintenance not performedVehicle Maintenance45 · 34 OOS
- 393.45 Brake tubing / hose defectsVehicle Maintenance44 · 11 OOS
- 393.48 Brakes inoperativeVehicle Maintenance34 · 2 OOS
- 393.55 Antilock brake system (ABS)Vehicle Maintenance33
- 393.53 Automatic brake adjusters / indicatorsVehicle Maintenance29
- 393.11 Required lamps/reflectors missingVehicle Maintenance26 · 1 OOS
02
Authority & insurance
Can they legally + adequately haul your load?
Operating authority· 49 CFR · per type
Operating authority
- Common
- Active
- Contract
- Active
- Broker
- None
Insurance & bonds
BIPD / liability (required)Filed with FMCSA
CargoNone
Surety bond (BMC-84)None
Insurance continuity· insurer · policy · lapses
$1M BIPD · 4 insurers · 1 lapseCoverage lapse
+1 earlier
Citizens America · 93–01
Lincoln General · 02–07
Hudson · 08–18
19932018
No BIPD policy is currently in force in the filing history. The authority record may still list one on file — request a COI to confirm current coverage.
4 insurer eras · collapsed from 11 filings
| Insurer | Period | Limit | Renewals |
|---|---|---|---|
| HUDSON INSURANCE COMPANY | Feb 2008 → Jan 2018 | $1M | 1 |
| LINCOLN GENERAL INSURANCE COMPANY | Oct 2002 → Jan 2007 | $1M | 6 |
| NATIONAL UNION FIRE INS. CO. OF PITSBGH. PA | Oct 2001 → Oct 2002 | $1M | 1 |
| CITIZENS INSURANCE CO. OF AMERICA | Oct 1993 → Oct 2001 | $1M | 3 |
03
Equipment & fleet
VIN-decoded · NHTSA vPIC
Capacity· power units = haulable capacity; trailers are towed
- Registered power units (MCS-150)
- 247
- Observed power (24 mo)
- 237
- Trailers (towed)
- 261
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
Fleet age· model years · decoded VINs
Average age
2026
Newest model yr
1997
Oldest model yr
VINs decoded
04
Operations & lanes
Revealed by inspection density across 15 states · 24 mo
Operating footprint· revealed by roadside-inspection geography
Operating radiusMulti-region
revealedStates observed1414
US statesInspections · 24 mo434434
MI busiestInspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
SAGINAW, MI
Top corridor
MI
Density
fewermore
05
Network & fraud
Affiliated entities & reincarnation signals · for review, not a verdict
Last 12 months: 4 trucks also ran under 3 other carriers
VINs inspected under this carrier were recently inspected under other USDOTs too — the active double-broker / shared-equipment signal: USDOT 1049709USDOT 3672303USDOT 3219285Some overlap is legitimate (leased or sold equipment); review alongside the other signals.
Show all-time history (36 trucks · 27 carriers)
Across all inspections on record: USDOT 3780305USDOT 4264823USDOT 3409470USDOT 1049709USDOT 3348102USDOT 3219285USDOT 3138369USDOT 436690
Shares a registration email domain with other carriers
@stonetransport.com — 5 carriers: USDOT 676384USDOT 1725789USDOT 1861411USDOT 3534011
Capacity consistency· registered vs roadside-observed power units
Registered (MCS-150)247247
Observed (24 mo)237237
Shared w/ other carriers3737
Registered and roadside-observed capacity are broadly consistent.
06
Identity & contact
FMCSA census + L&I dossier
Location
- Physical address
- 3495 HACK ROAD, SAGINAW, MI, 48601
- Operation
- Interstate
Contact
- Phone
- (989) 754-4788
- Web domain
- stonetransport.com
Registration
- Officers
- Scott Wiegers · Dean Darby
- USDOT / docket
- 300960 · MC-170956
- First registered
- 09/02/1987
- Last MCS-150
- 10/24/2025 · 14,544,952 mi (2023)
- FMCSA safety rating
- Satisfactory · 03/29/2007
- D-U-N-S
- 98673106
Fleet (self-reported · MCS-150)
07
Federal activity
Daily-captured FMCSA licensing & insurance changes — monitored by Vektor
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.
08
Reviews
Verified broker, shipper & driver reviews — moderated
Performance ratings only — never the Vektor risk score
No verified reviews yet
Be the first broker or shipper to rate STONE TRANSPORT LIMITED PARTNERSHIP. Reviews cover performance only — on-time delivery, payment speed, communication — and never affect the Vektor risk score.
Leave a review09
Frequently asked
What is STONE TRANSPORT LIMITED PARTNERSHIP's USDOT number?
STONE TRANSPORT LIMITED PARTNERSHIP's USDOT number is 300960, and its motor carrier number is MC-170956.
Is STONE TRANSPORT LIMITED PARTNERSHIP authorized to operate?
As of 2026-07-18, STONE TRANSPORT LIMITED PARTNERSHIP is active in the FMCSA register with common, contract, broker operating authority on file.
What is STONE TRANSPORT LIMITED PARTNERSHIP's safety record?
STONE TRANSPORT LIMITED PARTNERSHIP has a 34.9% vehicle out-of-service rate (national average 22.26%) across 681 roadside inspections, with 35 reportable crashes in the last 24 months, and an FMCSA "Satisfactory" safety rating. Vektor's computed risk score is 74/100 (tier: review).
How big is STONE TRANSPORT LIMITED PARTNERSHIP's fleet?
STONE TRANSPORT LIMITED PARTNERSHIP operates 247 power units and 225 drivers per its most recent MCS-150 filing.
Where is STONE TRANSPORT LIMITED PARTNERSHIP based?
STONE TRANSPORT LIMITED PARTNERSHIP is based in SAGINAW, MI, with roadside inspections recorded across 15 states.