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Semi truck preventive maintenance checklist

A printable PM checklist for tractors and straight trucks: records, engine, aftertreatment, brakes, steering, driveline, tires and coupling, with OK and Defect boxes, the parts used and when the next PM is due. Fill it in here and print it, or print it blank. Free, no sign-up.

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Preventive Maintenance Checklist

Vehicle
Service
 
Records first
  • Read every inspection report (DVIR) since the last service; each listed defect repaired or marked not needing repair
  • Read and wrote down active and stored fault codes
  • Checked open recalls and warranty campaigns for this VIN
Engine
  • Engine oil level and condition; oil and filter changed when due
  • Fuel filters and water separator drained or changed when due
  • Air filter restriction gauge read; filter changed when due
  • Coolant level, strength and condition; radiator and charge air cooler clean and not leaking
  • Belts, tensioners, hoses and clamps tight and not cracked
  • No oil, fuel, coolant or exhaust leaks; turbo and intake piping secure
Aftertreatment
  • DEF level, quality and filter; no aftertreatment warning lamps
  • DPF soot and ash load and regeneration history checked
Electrical
  • Batteries, cables and terminals clean and tight; charging output tested
  • All lights and reflectors work, including the trailer light cord
Brakes and air system
  • Brake linings or pads and drums or rotors within limits
  • Pushrod stroke within the adjustment limit; slack adjusters working
  • Air dryer purges; cartridge changed when due
  • Air leakage, governor cut-in and cut-out, low-air warning and ABS lamp checked
Steering and suspension
  • Steering gear, drag link, tie rod ends and kingpins have no excess play
  • Power steering fluid at the right level; no leaks
  • Springs, U-bolts, torque rods, shocks and air bags intact
Driveline and lube
  • Transmission and differential fluid levels right, no leaks, changed when due
  • Driveshaft, U-joints and carrier bearing tight and not worn
  • Clutch adjusted (manual transmissions)
  • Chassis greased at every fitting; fifth wheel lubricated
Tires, wheels and hubs
  • Tread at least 4/32 in on steer tires and 2/32 in on others; no cuts, bulges or exposed cords
  • Tires inflated to spec; valve caps on
  • Lug nuts tight with no rust streaks; wheels and rims not cracked
  • Hub oil level and seals; wheel bearing play checked
Cab, frame and coupling
  • Wipers, washers, horn, mirrors, heater and defroster work
  • Seat belts, door latches, steps and grab handles secure
  • Fire extinguisher charged; three reflective warning triangles on board
  • Fifth wheel jaws, lock and mounting; air and electrical lines
  • Frame and cross members have no cracks or broken welds
Parts and fluids used
Part or fluidQuantityCostRemove

Parts and fluids total$0.00

Result and next service
 
 
Technician signature
Reviewed by

49 CFR 396.3 requires a carrier to systematically inspect, repair and maintain its vehicles and to keep, for each one, a record of inspections, repairs and maintenance with their date and nature and when each is next due, for 1 year where the vehicle is kept and 6 months after it leaves the carrier's control. Follow the engine and truck maker's service intervals.

Free template from Yolda · yolda.ai

  1. Start with the paperwork

    Pull every driver inspection report since the last service, the fault codes and any open recalls for the VIN. Defects drivers already reported are the first things to fix.

  2. Pick the service level

    Choose the level your shop is doing: PM A, B, C or the annual inspection. The engine and truck maker's manual sets which items are due at which miles, hours or months.

  3. Mark every item

    Tick OK or Defect for each line, list the parts and fluids used, and write what was done and what was found in the box at the bottom.

  4. Set the next due point and file it

    Write the odometer reading or date the next PM is due and when the annual inspection runs out. Sign it and keep it in that truck's maintenance file.

Is preventive maintenance required by law?

Yes. Under 49 CFR 396.3, every motor carrier must systematically inspect, repair and maintain the vehicles it controls and keep their parts in safe and proper operating condition at all times. For each vehicle it controls for 30 consecutive days or more, it must keep a record of its identification, the nature and due date of upcoming inspection and maintenance work, and the date and nature of the inspections, repairs and maintenance done.

How often should a semi truck get a PM?

There is no federal mileage interval. Follow the engine and truck maker's service schedule, which usually changes with the duty cycle: idle time, short hauls, heavy loads and dusty roads shorten it. Many fleets schedule each PM by miles, engine hours or months, whichever comes first, and use oil analysis to adjust drain intervals.

What is the difference between PM A, PM B and PM C?

They are shop names for service levels, not federal terms. A common split: PM A is an inspection with chassis lube and fluid top-off, PM B adds the oil and filter change, and PM C adds longer-interval work such as coolant, transmission and differential fluids and valve adjustment. Use your shop's list and the maker's schedule.

Is the annual DOT inspection the same as a PM?

No. Under 49 CFR 396.17, the tractor and each trailer must pass a periodic inspection of the parts in Appendix A to Part 396 at least once every 12 months, done by a qualified inspector, with proof on the vehicle. The report is kept for 14 months under 49 CFR 396.21. A PM can include it when it falls due.

How long do I keep maintenance records?

Under 49 CFR 396.3(c), for 1 year where the vehicle is housed or maintained and for 6 months after it leaves your control. Annual inspection reports are kept 14 months (396.21) and driver vehicle inspection reports 3 months (396.11).

Can I print it blank?

Yes. Press Print or save as PDF without filling anything in and you get a blank checklist to fill in by hand. Anything you do type stays in your browser.

Drivers check the truck every day with the pre-trip inspection checklist. Read DVIRs explained and what is a DOT inspection, or see how Yolda's safety tools bring DVIRs and repairs into one review queue.

Keep DVIRs, repairs and each truck's maintenance costs in one place.

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