2025 Peterbilt 579

$154,900

UsedClass 8

Waukesha

Year

2025

Engine

Cummins X15

Horsepower

430 HP

Transmission

Automatic

Axle Config

6x4

Fuel

Diesel

Specifications

Engine

Make: Cummins
Model: X15
HP: 430
Displacement: 14.9L
Fuel: Diesel

Drivetrain

Transmission: Automatic

Dealer

"JX

Waukesha

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2025 Peterbilt 579

$154,900

UsedClass 8

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Waukesha

Chassis

Wheelbase: 240"
GVWR: 33,001 lbs

Details

Body Type: Truck-Tractor

VIN

1XPBD49X9SD729340

NHTSA Verified

Stock #

jx-scrape-8680392

Dealer

"JX

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Market Index

2025 Peterbilt 579 X15

View full index →

Median Price

$154,900

This listing

Near market median

Active listings

Specifications

Engine

Make: Cummins
Model: X15
HP: 430
Displacement: 14.9L
Fuel: Diesel

Drivetrain

Transmission: Automatic
Axle Config: 6x4
Rear Ratio: 2.64

Chassis

Wheelbase: 240"
GVWR: 33,001 lbs

Details

Body Type: Truck-Tractor

Finance calculator

2025 Peterbilt 579

Est. monthly

$2,938.37

Vehicle price

Pre-tax purchase price

Term (months)

Down payment (10%)

$15,490

Owner-ops: 10–20% typical

APR (9.50%)

Prime 7–9% · Median 9–12% · Subprime 14%+

Trade-in value

Deducted from financed amount

Condition

Drives Federal Excise Tax (FET)

Federal Excise Tax (FET)

FET applies$0

Skip if straight truck under 33k GVWR or trailer under 26k GVWR.

Off — used vehicles are exempt

Sales tax (0.00%)

Often 0% for interstate commercial use

Doc fee

Some states cap (CA $85, NY $75)

Title + registration

State title + lien fee

Balloon payment at end

Lowers monthly; paid as lump at term

Apply Section 179 first-year deduction

Heavy trucks (GVWR > 14,000 lbs) qualify for full deduction up to $1,220,000 in 2026. Assumes purchase in service this tax year. Consult a CPA.

Amount financed

$139,910

Total interest

$36,392

Total cost

$191,792

Effective / month

$2,938.37

Estimate only. Actual financing depends on credit, dealer program, and lender terms. Heavy-truck APRs typically range 7–18% depending on credit tier, vehicle age, and LTV. Interstate commercial-use purchases are often exempt from state sales tax. TruckRadar is not a lender. Consult a commercial-vehicle lender for binding quotes.

Market Index

2025 Peterbilt 579 X15

View full index →

Median Price

$154,900

This listing

Near market median

Active listings