Dry van trailer maintenance software solves a problem tractors don't have: a trailer has no engine hours, often no odometer, and spends half its life parked at someone else's dock. It still has brakes, tires, lights, doors, a floor and a roof that wear out, and it needs its own annual inspection. This guide covers the systems that fail on a dry van, the defects roadside inspectors write up most, and how to run A/B/C-style PM on calendar days and hub miles. Book a 20-minute demo to see FleetRabbit track trailers as their own units.
Transportation & logistics · Dry van trailers
No engine, no ELD, no hour meter. A dry van still fails inspections — at its lights, tires and brakes.
For carriers, trailer pool managers and shop leads maintaining 53-foot dry vans across tractors, drivers and customer yards.
53-118
No engine hours
No ELD miles
Calendar + hub miles
Seven Systems That Wear Out on a Dry Van Trailer, From the Kingpin to the Rear Doors
Walk a dry van from front to back and you pass seven systems, each with its own way of failing. A trailer PM program is just a schedule for checking each zone.
Front
Landing gear
Body
Running gear
Rear
Front
Kingpin, upper coupler, glad hands, light cord
Worn kingpin, leaking glad hand seals, chafed air lines
Landing gear
Legs, braces, gearbox, crank
Bent legs, dry gearboxes, missing crank stowage
Body
Roof, walls, floor, crossmembers
Roof punctures, forklift-damaged floors, cracked crossmembers
Running gear
Brakes, hubs, bearings, tires
Out-of-adjustment brakes, low hub oil, uneven tire wear
Running gear
Slider and suspension
Seized slider pins, worn bushings, loose U-bolts
Electrical
Lights, ABS, conspicuity tape
Corroded connections, ABS lamp on, peeling tape
Rear
Doors, seals, hinges, rear impact guard
Sprung doors, torn seals, a bent guard that now fails the annual
Building one checklist per zone, on the trailer's own record rather than the tractor's, is the foundation of every preventive maintenance plan for trailers. You can set up your trailer checklists free.
Lights, Conspicuity Tape and ABS Lamps: The Trailer Defects All Over 2025's Roadside Violation List
J. J. Keller's count of 2025 roadside violations, from nearly 2 million inspections, doesn't separate tractors from trailers. But several of the top 10 sit mostly or entirely on the trailer.
660,792
Inoperable or obscured lamps
Rear, sides, marker lamps
311,932
Tire tread, inflation or load
Running gear
230,677
Brake hose or tubing
Front lines, running gear
185,828
Conspicuity and lighting
Trailer sides and rear
115,148
ABS malfunction circuit or lamp
Trailer ABS lamp, left side
J. J. Keller Compliance Network, "Top 20 commercial vehicle violations of 2025" (January 2026). Highlighted items are specific to trailers.
Most of these show up on a walkaround with the lights on. The fix is making sure the driver who hooks the trailer reports them against the trailer's number on the DVIR, so the defect follows the trailer and not the tractor.
No Engine Hours to Count: Running Dry Van A/B/C Service on Calendar Days and Hub Miles
Without engine hours, trailer PM runs on time, with hubodometer miles as a second trigger where you have them. Utility Trailer's published preventive maintenance checklist splits the work into a monthly and a six-month inspection; add the annual and you have a natural A/B/C ladder.
Doors, latches and holdbacks · roof bows and fasteners · floor · landing gear legs, braces and gearbox · hub oil level · brake adjustment · lights, reflectors and wiring · light test of the body
Everything in A, plus: lubricate door latches and hinges · glad hands and seals · sliding tandem operation · springs, U-bolts and torque arms · wheel bearings · brake drums and lining percentage · air leak test · drain air tanks · relay valve emergency function
Everything in B, plus the §396.17 annual inspection to Appendix A — which has included the rear impact guard since December 9, 2021
Monthly and six-month items adapted from Utility Trailer's preventive maintenance checklist. Follow your trailer and component makers' current intervals.
Calendar-triggered PM is simple to schedule but easy to miss when the trailer is sitting at a customer's dock on its due date. That's why each service should open a reminder well before it's due. A walkthrough shows a trailer ladder set up live.
Monthly · 6-month · Annual
Put every dry van on its own A/B/C calendar, with reminders before it leaves for a long haul
Roof Punctures and Floor Damage on a Dry Van Turn Into Cargo Claims, Not Just Repairs
Body damage rarely puts a trailer out of service, but it costs money in a different way: wet freight, damaged pallets and refused loads. A light test is the cheapest way to find it. Close the doors with someone inside, and any daylight shows a hole.
Inside a closed dry van: each point of light is a roof or wall puncture
Roof
Punctures from low clearances and branches; loose bows and fasteners
Walls
Forklift and load-shift damage to liners and logistics posts
Floor
Soft or broken boards and cracked crossmembers under the forklift path
Doors
Torn seals and sprung doors that let water and light in
Logging body damage with photos on the trailer's record helps in two ways: repairs get planned before the next load, and you have dated evidence if a cargo claim lands later. Patch kits, door seals and floor boards can be tracked in parts and inventory so the shop isn't waiting on stock.
Pooled Dry Vans Lose Their Maintenance History Unless It Travels With the Trailer Number
A trailer pulled by five tractors in a month has five drivers who might report a defect and no single driver who owns it. The only way that history survives is if every report, repair and PM is filed under the trailer number.
Trailer 53-204 · last 30 days
Sample history
Oct 2
Tractor 3302
No defects
Oct 9
Tractor 3315
Left rear marker lamp out · photo
Oct 10
Shop
Lamp replaced · repair certified
Oct 18
Tractor 3310
Door seal torn, right side
Oct 21
Schedule
B-service due in 9 days · seal added to it
How FleetRabbit Keeps Dry Van Trailer Maintenance FMCSA-Ready Across Every Tractor and Yard
FleetRabbit treats every trailer as its own unit, with its own checklist, schedule and history, linked to whichever tractor pulled it.
Zone checklists
Front, landing gear, body, running gear, electrical and rear, with photos required where you choose
A/B/C-service on the calendar
Monthly, six-month and annual services, with hub miles as a second trigger
FMCSA-ready DVIRs
Drivers report trailer defects against the trailer number, with repair certification and review
Annual inspection tracking
Appendix A inspections, including the rear impact guard, with 14-month report retention
Parts for trailers
Seals, lamps, brake parts and floor boards stocked and tied to the trailer's work orders
Audit-ready by default
Every inspection, repair and photo on one file per trailer
What the 20-minute demo covers
Your trailers loaded as their own units
A monthly A-service checklist by zone
A driver's trailer defect becoming a work order
One trailer's history across five tractors
Dry Van Trailer Maintenance Software: Questions Fleets Ask
How often should a dry van trailer get preventive maintenance?
A common pattern is a monthly inspection, a more detailed six-month service, and the annual DOT inspection. Use your trailer and axle makers' intervals, and add hub-mile triggers for high-mileage trailers.
Does a trailer need its own annual inspection?
Yes. Under §396.17, each unit in a combination is inspected separately, and since December 9, 2021 the criteria include the rear impact guard.
How do you track maintenance on a trailer with no engine hours?
Schedule on calendar days, use hubodometer miles where installed, and file every DVIR defect and repair against the trailer number.
What are the most common trailer violations?
Lamps, tires, brake hoses, conspicuity tape and ABS malfunction lamps were all among 2025's most-cited roadside violations.
How do you find roof leaks in a dry van?
A light test: close the doors with someone inside in daylight and look for points of light in the roof and walls.
Can we start with just a few trailers?
Give Every Dry Van Trailer Its Own Schedule, History and Annual Inspection Date
Zone checklists, calendar-based A/B/C service, driver defects filed by trailer number, and one audit-ready record per unit.
Free for up to 3 units · No credit card required
October 22, 2026
By Alex Rowan
All Posts
