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DOT 4119331 is operated by KEYSTONE ENGINEERING & MFG LLC. This profile shows verified operating authority, current insurance, observed equipment, and recent inspection activity joined into one card so brokers can verify the carrier in one tab.
Operating authority is verified against the live public registry and refreshed daily. Current status: unknown. "active" means the carrier is authorized to operate; "inactive" or "out-of-service" indicates the carrier should not be hauling.
Liability and cargo insurance status is drawn from the latest filings on record. Current status: unknown. We mark a carrier "lapsed" when the most recent cancellation date is in the past with no superseding policy.
KEYSTONE ENGINEERING & MFG LLC was last inspected on 2026-10-12. We've recorded 1 inspections in the trailing 12 months.
KEYSTONE ENGINEERING & MFG LLC does not have an MC number on file. Some carriers operate intrastate-only or under a private-carrier exemption and never apply for one.
Save KEYSTONE ENGINEERING & MFG LLC to your history
Equipment, lane footprint, insurance timeline, and fraud signals on one screen.
Not enough history yet to chart a fleet trend.
Not enough reports yet
0 of 3 brokers needed before rates unlock
Rates stay locked below 3 contributing brokers so no single broker’s loads can be picked out of the aggregate.
Not enough broker-reported loads yet — this score unlocks as brokers report load outcomes. Aggregates appear once 3+ brokerages have reported on this carrier (0 loads from 0 brokerages so far).
Aggregate rating unlocks at 3 reviewing workspaces — 0 so far. Individual reviews appear below as they're published.
No published reviews yet. Worked with this carrier? Your review starts the record.
Not enough claim reports yet
0 of 3 brokers needed before claims history unlocks
Claims stay locked below 3 contributing brokers so no single broker's claims can be picked out of the aggregate.
Consider with verification — at least one signal needs review.
power units (MCS-150)
distinct VINs in inspections
1 inspections, 12mo
most recent roadside record
No contact info on file.
No community reports for this carrier. Had a fraud or cargo-theft incident? Your report warns the whole network within minutes.
Community reports are submitted by broker workspaces and are NOT verified by KnowHaul. New reporters are human-moderated; 3+ corroborating workspaces feed a capped penalty into the fraud risk score. Named in a report that's wrong? Email admin@knowhaul.com and a human will review it.
This carrier has fewer than 3 roadside inspections in the last 24 months — too thin for meaningful CSA scoring.
No active fraud-risk signals contribute to this score.
No equipment signal — request a COI before tender.