Does Your Trailer Need Its Own Insurance?
The short answer: it depends on who owns it and how you use it.
You Own the Trailer
If your name (or your LLC) is on the title, you need physical damage coverage on the trailer — just like your truck. Your auto liability policy covers the trailer while it’s attached and in use, but physical damage for the trailer itself must be specifically listed.
You need trailer physical damage
You Lease the Trailer
If you’re leasing a trailer from a leasing company (like XTRA Lease, TP Trucking, or a local company), your lease agreement almost certainly requires you to carry physical damage coverage on it — with the leasing company listed as loss payee.
Required by your lease
You Pull Someone Else’s Trailer
If you’re pulling a shipper’s trailer, a broker’s trailer, or a carrier’s trailer under an interchange agreement — you need trailer interchange coverage. This is a separate coverage from your regular physical damage policy.
Need trailer interchange
You Don’t Own a Trailer
If you only pull power-only loads using the shipper’s or broker’s trailers, you still need trailer interchange or non-owned trailer coverage — because you’re responsible for damage while the trailer is in your possession.
Need non-owned trailer coverage
Trailer Coverage Types Explained
Trailer Physical Damage
For trailers you own or lease
Works the same as physical damage on your truck — comprehensive covers non-collision events (theft, fire, hail, vandalism), collision covers accident damage.
Typical limit Actual cash value or agreed value of trailer
Deductible $1,000-$5,000 (your choice, subject to lender)
Annual cost $300-$2,500 depending on trailer value
Trailer Interchange
For trailers you don’t own
Covers damage to non-owned trailers while in your care, custody, and control under a written interchange agreement. This is critical for power-only operators and anyone who swaps trailers at rail yards or shipper facilities.
Typical limit $30,000-$100,000 per trailer
Deductible $1,000-$2,500
Annual cost $400-$1,500
Key requirement: Most trailer interchange policies only cover trailers received under a written interchange agreement. No signed agreement = no coverage.
Non-Owned Trailer Coverage
Broader than interchange
Similar to trailer interchange but may cover trailers that aren’t under a formal interchange agreement — like a shipper’s trailer you’re pulling under a standard bill of lading. Coverage varies by insurer, so read the policy carefully.
Typical limit $30,000-$75,000
Deductible $1,000-$2,500
Annual cost $300-$1,200
Reefer Breakdown Coverage
For refrigerated trailers
Covers mechanical breakdown of the refrigeration unit — not covered under standard physical damage or cargo insurance. If your reefer unit fails and a $50,000 load of produce spoils, this coverage pays for the cargo loss and the unit repair.
Typical limit $25,000-$100,000 (matches cargo)
Deductible $1,000-$5,000
Annual cost $500-$2,000
Critical gap: Standard cargo insurance excludes reefer breakdown. If your unit fails and cargo spoils, your cargo policy won’t pay. Reefer breakdown coverage fills this gap.
Insurance Costs by Trailer Type
| Trailer Type | Typical Value | Annual PD Cost | Special Coverage |
|---|---|---|---|
| Dry Van (new) | $35,000-$55,000 | $700-$1,500 | None required |
| Dry Van (used) | $10,000-$30,000 | $300-$800 | None required |
| Reefer (new) | $55,000-$85,000 | $1,200-$2,500 | Reefer breakdown ($500-$2,000) |
| Flatbed | $25,000-$55,000 | $500-$1,200 | None required |
| Tanker | $50,000-$120,000 | $1,000-$3,000 | Pollution liability |
| Lowboy | $40,000-$100,000 | $800-$2,500 | None required |
| Chassis (intermodal) | $8,000-$20,000 | $200-$600 | Interchange coverage |
Physical damage costs are typically 2-4% of the trailer’s value annually. Higher for new trailers, lower for older ones. Deductible choice significantly affects premium — a $5,000 deductible on a $50,000 trailer can cut the premium 30-40% compared to a $1,000 deductible.
5 Trailer Insurance Gaps That Cost Truckers
1
No reefer breakdown on a refrigerated trailer
Standard cargo insurance excludes mechanical breakdown of the reefer unit. One compressor failure on a $60,000 load of frozen food = you’re paying out of pocket. Reefer breakdown coverage costs $500-$2,000/year. Skipping it is a gamble that rarely pays off.
2
Pulling someone else’s trailer without interchange coverage
You pick up a loaded trailer at a rail yard, and it gets damaged in an accident. Without trailer interchange coverage, you’re personally responsible for the trailer — which could be $30,000-$80,000. Your physical damage policy only covers trailers you own.
3
Trailer not listed on the policy
You buy a new trailer and forget to add it to your insurance. It seems obvious, but it happens constantly. Most policies give you a 30-day grace period to add newly acquired equipment — but after that, no coverage. Don’t rely on the grace period.
4
Detached trailer not covered
Your trailer is parked at a truck stop, detached from your truck, and gets hit by another driver. Check your policy — some policies only cover the trailer while attached to a covered power unit. Most modern trucking policies cover detached trailers, but don’t assume.
5
Undervaluing the trailer on your policy
If you listed your trailer at $20,000 but it’s actually worth $45,000, you’ll only receive $20,000 if it’s totaled. Review your stated values annually — especially if trailer values have increased (which they did significantly in 2023-2025).
Trailer Interchange Agreements: What You Need to Know
An interchange agreement is a written contract that defines who is responsible for a trailer while it’s in your possession. It’s required for trailer interchange coverage to apply.
What the Agreement Covers
- Who is responsible for physical damage to the trailer
- Required insurance minimums
- Inspection requirements (pre-trip and return)
- Allowed use and geographic restrictions
- Return condition requirements
What to Watch For
- Excessive damage responsibility (pre-existing vs. your damage)
- Deductible pass-through (some agreements make you pay the owner’s deductible too)
- Broad indemnification clauses (you assume all risk)
- No inspection process (you get blamed for pre-existing damage)
- High insurance requirements (minimum $100K+ coverage)
Always Do a Pre-Trip Inspection
When you pick up someone else’s trailer, photograph every existing scratch, dent, and tire condition. Note the reefer hours if applicable. When you return it, any new damage without documentation becomes your problem. A 5-minute photo walk-around can save you thousands.
Frequently Asked Questions
Is trailer insurance separate from my truck insurance?
Trailer physical damage is usually on the same policy as your truck’s physical damage — but the trailer must be specifically listed with its own value. Your auto liability covers the trailer while attached. Trailer interchange is often a separate coverage or endorsement that you add to your policy.
Can I skip physical damage on a paid-off trailer?
Yes — just like a paid-off truck, physical damage on a paid-off trailer is optional. But consider: can you afford to replace it? A $40,000 dry van replacement while you’re paying for downtime and a rental can break a small operation. Many truckers keep comprehensive (for theft and fire) but drop collision on older trailers.
My reefer unit is rented separately. Who insures it?
If you rent the reefer unit from a company like Carrier Transicold or Thermo King, their rental agreement likely requires you to carry physical damage on the unit. They may also offer insurance through the rental — compare their cost to adding the unit to your trucking policy.
Does cargo insurance cover the trailer?
No. Cargo insurance covers the freight inside the trailer. Physical damage covers the trailer itself. These are separate coverages. If your trailer is destroyed in an accident, cargo pays for the freight and physical damage pays for the trailer.
What if I own multiple trailers but only use one at a time?
All owned trailers should be listed on your policy, even if parked. They can still be stolen, vandalized, or damaged by weather. Some insurers offer reduced rates for parked/spare trailers. Talk to your agent about spare trailer coverage options.
Related Guides
Physical Damage Insurance Comprehensive vs collision, valuation methods, and deductible math. Cargo Insurance Guide What cargo insurance covers (and doesn’t) — separate from trailer coverage. Leased vs Owned Insurance How financing affects your coverage requirements for trucks and trailers.
Need Trailer Coverage?
Whether you own your trailers, lease them, or pull power-only — we’ll make sure your coverage matches your operation. No gaps, no surprises.
Or call us: (208) 884-1118