What is Manufacturers of (Truck) Trailers?
This coverage is tailored for companies that design, build, assemble, or modify truck and utility trailers. Policies are designed to protect against liability exposures that come from product defects, manufacturing operations, transportation of finished units, and exposures at the manufacturing facility.
Who needs it
Typical buyers include small and large manufacturers, contract assemblers, component suppliers, and companies that install hitches or electrical systems. Organizations involved in after-market alterations or rental fleets may also need specialized protection. For manufacturers focused on product defect and post-sale exposures, see the Trailer Manufacturers Product Liability Insurance resource for related considerations.
What it typically covers
Coverage packages commonly include general commercial liability for premises and operations, product liability for defects or failures, completed operations liability, and property coverage for buildings, inventory, and finished trailers. Many manufacturers add equipment coverage and commercial auto exposure for vehicles used in delivery or testing. Policies often coordinate with workers’ compensation to address employee injuries and may offer additional endorsements for transit and inland marine risks.
Example risk scenario: a trailer coupler failure during transit could cause a load shift, leading to third-party property damage or injury.
Common exclusions or limitations
Typical exclusions include intentional acts, contractual liabilities beyond policy terms, certain pollution events, and losses arising from known defects not disclosed to the insurer. Mechanical breakdown of covered equipment may be excluded unless mechanical breakdown coverage is purchased. Exclusions and limits can vary by insurer and by the specific manufacturing processes involved.
Factors that influence cost
Underwriting factors include annual payroll, production volume, product types, warranty terms, safety programs, loss history, and transportation practices. Other influences are the degree of automation, subcontracting, storage conditions for inventory, and whether trailers are registered or used on public roads. Good risk management—regular inspections, quality control, and documented maintenance—typically helps lower premiums.
Proof of insurance & compliance
Manufacturers often need certificates of insurance to bid on contracts, obtain vendor approvals, or meet lease and lender requirements. Certificates will typically show limits for general liability, product liability, and commercial auto as required by customers or regulators. Some contracts ask for additional insured status or waiver of subrogation—both are negotiated with the insurer and reflected on the certificate when granted.
How to get a quote
To get an accurate quote, prepare details about your products, production locations, payroll, claims history, and any existing contracts that include hold-harmless language. Brokers and specialty programs can help identify appropriate limits and endorsements. For more specific program options for manufacturers and related industries, review materials for Trailer & Work Truck Manufacturers or broader offerings like Insurance Services for Various Industries. If you prefer to speak with a marketplace specialist, you can talk to your agent to begin the process and compare program options.
Frequently Asked Questions
Do standard general liability policies cover product failures?
General liability may cover some product liability claims, but manufacturers often need specific product liability limits and completed operations coverage to address post-sale exposures fully.
Is transportation of finished trailers covered?
Transportation exposure can be covered under commercial auto or transit/inland marine extensions. Coverage depends on how trailers are moved and who is operating the tow vehicle.
Can I add coverage for rented or leased equipment?
Yes. Equipment coverage or a hired/non-owned auto endorsement can be added depending on whether equipment is owned, rented, or operated by subcontractors. Discuss specifics with your broker to match exposures.
Still have questions? Talk to a local insurance expert.