Mack Trucks are built for the hardest work in commercial transportation — construction, refuse, logging, snow removal, and long-haul freight. They're also built to be inspected systematically. This Mack truck checklist follows the manufacturer-recommended pre-trip sequence: walk-around general appearance, raise the hood for engine compartment and radiator checks, steering system verification, close hood for tires/wheels/brakes, cab interior setup, engine start systems verification, and end-of-day shutdown procedures. Whether you're operating a Mack Anthem on the highway, a Granite on a construction site, or an LR on a refuse route, this checklist ensures every Mack in your fleet meets CDL pre-trip requirements and FMCSA DVIR standards before every shift. Book a demo to digitize your Mack fleet inspections.
Mack Truck Checklist
Class 8 Pre-Trip Inspection — CDL Walk-Around • DVIR • End-of-Day
Inspection Purpose
CDL Pre-Trip Compliance
- Every CDL holder operating a Mack truck must complete a documented pre-trip inspection before driving. FMCSA 49 CFR 396.13 requires drivers to review the previous DVIR and verify defect corrections, inspect the vehicle, and report any new defects. This checklist follows the Mack-recommended walk-around sequence — the same order CDL examiners expect during skills tests. Book a demo to see how Fleet Rabbit guides operators through each step.
Mack-Specific Maintenance
- Mack trucks have specific fluid specifications (Mack EOS-4.5 engine oil, Mack coolant specs), tilt-cab access procedures, and Mack-specific wiring harness routing. This checklist addresses these OEM requirements — from windshield washer solvent under the tilted cab, to 40–60% antifreeze/water coolant mix, to checking engine-driven belt condition on Mack MP engines. Generic checklists miss these details; this one doesn't.
Fleet Uptime Protection
- A Mack Granite that breaks down on a construction site costs $2,000+ per hour in crane standby and crew idle time. A Mack Anthem that goes OOS during CVSA roadcheck costs $1,500+ in tow fees plus load delays. Pre-trip inspection catches coolant leaks, belt wear, low oil, loose wheel nuts, and brake defects before they become roadside emergencies. Sign up free to track inspection completion rates across your Mack fleet.
1. General Appearance — Walk-Around
Begin the pre-trip with a full 360° walk-around before touching the hood or cab:
Visual Scan
Exterior Condition
Markings & Safety
2. Under Hood — Radiator & Engine
Raise the hood or tilt the cab per Mack procedure — inspect cooling system, engine, and fluid levels:
Cab Access & Cooling
Radiator & Airflow
Engine
3. Steering System
Inspect all steering components while under hood — critical safety system:
Power Steering
Steering Gear & Linkage
Steering Shaft
Book a demo to see steering component wear tracking and service alerts
4. Close Hood — Tires, Wheels, Brakes & Battery
Close hood / lower cab, secure latches — then inspect undercarriage and wheel assemblies:
Tires & Wheels
Brakes
Battery & Electrical
5. Cab Interior
Enter the cab — set up the operator environment and verify all interior safety systems:
Visibility & Comfort
Controls & Pedals
Emergency & Safety
6. Start the Engine — Systems Check
Start the engine and verify all operating systems, gauges, and controls:
Engine Start
Controls Test
Brake Test
Book a demo to see engine fault code tracking and brake test documentation
7. End of the Day — Shutdown & Post-Trip
Proper shutdown procedures protect the truck and document end-of-day condition:
Shutdown
Post-Trip Report
Housekeeping
Mack Pre-Trip Walk-Around Sequence
This checklist follows the manufacturer-recommended inspection order — the same flow CDL examiners expect:
Walk-around general appearance, check for leaks, lean, previous DVIR review
Tilt cab or raise hood, check washer fluid, radiator, coolant, engine oil, belts, wiring
Power steering fluid, gear/pitman arm/drag link security, shaft U-joints
Tires, rims, pressure, wheel bearings, brakes, battery
Windows, seat, belts, loose items, emergency gear, clutch, mirrors
Listen for noises, gauges, alarms, horns, wipers, heater, brakes
Park, drain air, drain fuel separator, check for leaks, post-trip DVIR
Book a Demo — See Mack Fleet Inspections Digitized
Paper DVIRs get pencil-whipped at the end of a 14-hour shift. Defects go unreported. Previous inspection reviews get skipped. Fleet Rabbit turns the Mack walk-around sequence into a guided mobile workflow that operators actually complete — because it's faster than paper and routes defects directly to your shop.
Mack Model Inspection Compatibility
This checklist applies across Mack's current and recent model lineup — with model-specific notes:
| Mack Model | Application | Cab Type | Model-Specific Notes | All Sections Apply |
|---|---|---|---|---|
| Anthem | Long-haul, regional | Conventional sleeper/day cab | Raise-hood access; check DEF level additionally | Yes — all 7 sections |
| Pinnacle | Highway, vocational | Conventional | Raise-hood access; MP engine belt routing specific | Yes — all 7 sections |
| Granite | Construction, dump, mixer | Conventional set-back | Check PTO, dump body/mixer hydraulics separately | Yes + vocational addendum |
| LR | Refuse, recycling | Low-entry cab-forward | Tilt-cab access; check packer hydraulics separately | Yes + refuse addendum |
| MD | Medium-duty delivery | Conventional | Lighter-duty components; electric brake option on some | Yes — adapted for Class 6-7 |
| Mack EV (LR Electric) | Refuse (electric) | Low-entry cab-forward | No engine oil/coolant/fuel checks; add battery SOC, HV system | Sections 1, 4, 5, 7 + EV addendum |
Mack Trucks & Class 8 Market: 2025 Data
Mack was the only major Class 8 OEM to report sales growth in 2025, with units up 9.7% year-over-year while the overall market declined 13.4%.
Mack gained 1.8 percentage points of market share in 2025 — the largest gain of any major manufacturer. Vocational strength in construction, refuse, and dump drove growth.
The global Class 8 market is valued at $269.4 billion, growing at 4.7% CAGR through 2035. North America holds 38%+ market share with 208,155 units sold in 2025.
Regulatory Requirements
Mack Truck Inspection FAQs
What is the correct pre-trip sequence for a Mack truck?
The Mack-recommended sequence is: approach and walk-around (general appearance, leaks, lean, previous DVIR), raise hood/tilt cab (washer fluid, coolant, engine oil, belts, wiring), steering system, close hood (tires, wheels, brakes, battery), cab interior (seat, belts, controls, emergency gear), start engine (gauges, alarms, horns, wipers, brakes), and end of day (park, drain, check leaks, post-trip DVIR). This matches the CDL examiner walk-around flow.
What coolant mix does Mack specify?
Mack specifies a 40–60% antifreeze to quality water mixture. Never use straight water or straight antifreeze. The concentration provides freeze protection, boil-over protection, and corrosion inhibition for the cooling system. Check the concentration with a refractometer during seasonal changes. Mack-approved coolants meeting their extended-life specifications reduce the need for supplemental coolant additives.
How do I check for loose wheel nuts on a Mack truck?
Per this checklist: check rims for damage and wheel nut tightness. Rust streaks around wheel nut ball seats are an indication of looseness — this is a Mack-specific callout. Also check for shiny spots on nut faces (indicating recent movement), cracks radiating from bolt holes, and any missing lug nuts. Torque to Mack specification after any wheel removal. Book a demo to see lug nut torque verification tracking.
Why does the checklist include end-of-day procedures?
End-of-day procedures protect the truck overnight and prepare it for the next operator. Draining the air system removes moisture that causes freeze-ups and valve corrosion. Draining the fuel separator prevents water from reaching injectors. Checking for leaks at shutdown catches problems that developed during the day's operation. The post-trip DVIR ensures defects are reported while fresh — not forgotten overnight.
Does this checklist work for all Mack models?
Yes — the core 7 sections apply to all current Mack models including Anthem, Pinnacle, Granite, LR, and MD. Model-specific differences: Granite and LR may require vocational/refuse addendums for PTO, dump body, or packer hydraulics. The Mack LR Electric skips engine fluid checks but adds battery state-of-charge and HV system verification. See the model compatibility table above for specifics.
What does reviewing the previous inspection sheet involve?
FMCSA 49 CFR 396.13 requires drivers to review the previous DVIR before operating. Check if any defects were noted, and verify that safety-critical defects have been signed off as repaired by maintenance. If a defect was reported and not corrected, the truck should not be dispatched until the repair is verified. Digital DVIRs make this instant — the previous report is accessible on the operator's device before the walk-around begins.
How often should Mack engine belts be inspected?
Per this checklist, belt condition should be checked at every pre-trip. Look for cracking, glazing, fraying, and proper tension. Mack MP engines use serpentine belts that drive the alternator, A/C, power steering, and water pump — a single belt failure disables multiple systems. Belt tension should be verified with a gauge during PM services per Mack's maintenance schedule (typically every 25,000–50,000 miles depending on application).
What documentation should Mack truck operators maintain?
At minimum: pre-trip DVIR, post-trip DVIR, CDL and medical card, registration, insurance, annual DOT inspection certificate, and any applicable permits (oversize/overweight, hazmat). FMCSA requires DVIRs to be retained for 3 months. Book a Fleet Rabbit demo to see how digital DVIRs with photo evidence, defect routing, and repair sign-off keep your Mack fleet compliant and audit-ready.
Conclusion
Mack trucks are purpose-built for demanding applications where equipment failure has immediate operational and safety consequences. This checklist follows Mack's recommended walk-around sequence — from approach inspection through engine compartment, steering, undercarriage, cab interior, engine start, and end-of-day shutdown — ensuring operators inspect every system in the order that CDL examiners and CVSA inspectors expect. With Mack as the only major Class 8 OEM growing market share in 2025, more fleets are operating these trucks than ever. Systematic, digitally documented inspection of every Mack in your fleet is the foundation of uptime, compliance, and safety.
Every Mack Deserves Better Than a Pencil-Whipped DVIR
Your Mack trucks are built for the hardest work. Your inspection process should match. Fleet Rabbit turns the Mack pre-trip walk-around into a guided mobile workflow — general appearance, engine compartment, steering, undercarriage, cab interior, engine start, and end-of-day — with photo evidence, defect routing, and DOT-compliant DVIRs stored for every truck, every shift, every day.
