Buying a commercial truck is one of the largest investments you'll make for your fleet—but should you go new or used? The upfront savings on a used unit can free up capital, while a new truck offers warranty protection and predictable maintenance costs.
The Real Price Gap
Used commercial trucks typically cost 40–60% less than their new equivalents, depending on age, mileage, and condition. A new Class 8 heavy-duty truck (like a Peterbilt or Volvo) runs $120,000–$180,000, whereas a 3–5 year old unit in good condition lands in the $50,000–$90,000 range. Medium-duty trucks (Class 6–7) show similar depreciation curves: new models cost $80,000–$130,000, while used versions drop to $30,000–$60,000.
The catch: that savings disappears fast if you inherit major repair bills. A rebuilt transmission can cost $4,000–$8,000. Engine overhauls run $10,000–$25,000. Brake system rebuilds add $2,000–$5,000 per axle. These aren't hypothetical—they're routine maintenance items on used trucks hitting 300,000+ miles.
Total Cost of Ownership: The Full Picture
Don't compare sticker price alone. Calculate what you'll actually spend over the truck's working life.
New trucks offer:
- 5–10 year manufacturer warranties (powertrain and bumper-to-bumper)
- Predictable maintenance intervals with known costs
- Lower downtime risk (modern diagnostics catch problems early)
- Better fuel efficiency (newer engines save 5–15% on diesel)
- Resale value retention (new trucks hold 50–60% value after 5 years)
Used trucks save upfront but demand:
- Out-of-pocket repairs once warranty expires (often immediately)
- Potential frame damage or hidden collision history
- Aging brake and electrical systems requiring immediate attention
- Higher insurance premiums (insurers flag older commercial vehicles)
- Unpredictable fuel consumption due to engine wear
For a truck running 100,000 miles annually, a new $150,000 unit might cost $0.95–$1.10 per mile (fuel, maintenance, depreciation). A used $60,000 truck can climb to $1.20–$1.50 per mile once repairs start piling up.
What to Check on Used Trucks
If you're serious about the used market, don't skip inspection. Sellers know buyers are cost-conscious, which creates risk.
- Service records: Request full maintenance history. Gaps of 15,000+ miles between oil changes signal neglect.
- Brake condition: Have a certified mechanic inspect drums, pads, and hoses. Worn brakes are a safety liability.
- Frame and chassis: Look for welding, rust perforation, or bent components. A compromised frame fails inspection and costs thousands to repair.
- Engine hours vs. miles: Cross-reference odometer miles with engine hours. Inconsistencies suggest tampering.
- Title status: Confirm the truck is cleared of liens and has no salvage/rebuilt title (these affect insurance and resale).
- Tire condition: Check remaining tread and sidewall cracks. Four new tires run $800–$2,000 depending on size.
New Trucks: The Warranty Safety Net
New commercial trucks carry longer lead times (8–14 weeks) but arrive in peak condition. Manufacturers like Freightliner, Mack, and International now offer extended service contracts covering parts and labor up to 10 years or 500,000 miles for an extra $3,000–$8,000.
The real advantage: resale flexibility. A 5-year-old new truck with 250,000 miles on it retains strong market demand. Used trucks beyond 400,000 miles become difficult to move without deep discounts.
Financing Differences
Lenders treat new and used trucks differently. New trucks qualify for 84–96 month loans at 5–7% APR (2024 rates). Used trucks cap out at 60–72 months at 7–10% APR. This means your monthly payment spread looks better on paper with a new truck—and the interest you'll actually pay is lower.
Making the Call
Choose new if:
- You drive 80,000+ miles annually
- Downtime costs your business money
- You want predictable expenses for 5+ years
Choose used if:
- Budget is tight and you need to deploy capital elsewhere
- You have in-house or trusted mechanic relationships
- You're running shorter routes with lighter loads (lower stress = fewer failures)
Platforms like Mercoly help you compare used and new inventory from verified Commercial Truck & Trailer Dealers, so you can see what's actually available in your region and what dealers are charging.
Frequently Asked Questions
Q: What mileage is too high for a used commercial truck? Anything over 400,000 miles enters high-risk territory unless service records are immaculate; aim for 150,000–300,000 miles on used Class 8 trucks.
Q: Can I negotiate a better rate on a new truck? Yes—dealers build margin into pricing; expect 5–15% negotiation room, plus potential rebates from manufacturers during slow sales periods.
Q: Should I buy a used truck from a dealer or private seller? Dealers offer accountability and basic recourse if something fails immediately; private sellers are cheaper but often "as-is," so budget for inspections.
Start comparing verified truck dealers in your area today to find the best price for your fleet needs.