1 / 28

2021 Peterbilt 579

$36,550

UsedClass 8

Link copied!

Fort Worth, TX

2021 Peterbilt 579

$36,550

UsedClass 8

Fort Worth, TX

Year

2021

Engine

PACCAR MX13 EPA21

Horsepower

455 HP

Axle Config

6x4

Fuel

Diesel

GVWR

33,001 lbs

Specifications

Engine

Make: PACCAR
Model: MX13 EPA21
HP: 455
Displacement: 12.9L
Fuel: Diesel

Drivetrain

Axle Config: 6x4

Chassis

GVWR: 33,001 lbs

Details

Body Type: Truck-Tractor

Dealer

MHC Kenworth

Fort Worth, TX

VIN

1XPBDP9X2MD758540

NHTSA Verified

Stock #

mhc-0619203

Dealer

MHC Kenworth

Your nameYour email addressYour phone number

By submitting this form you agree to receive SMS and email from this dealer regarding your inquiry. Msg & data rates may apply. Reply STOP to opt out at any time.

Get notified about trucks like this

We'll email you when similar listings are added or prices drop.

Market Index

2021 Peterbilt 579 MX13 EPA21

View full index →

Median Price

$37,250

This listing

Near market median

Active listings

Specifications

Engine

Make: PACCAR
Model: MX13 EPA21
HP: 455
Displacement: 12.9L
Fuel: Diesel

Drivetrain

Axle Config: 6x4

Chassis

GVWR: 33,001 lbs

Details

Body Type: Truck-Tractor

Finance calculator

2021 Peterbilt 579

Est. monthly

$701.36

Vehicle price

Pre-tax purchase price

Term (months)

Down payment (10%)

$3,655

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

$33,395

Total interest

$8,686

Total cost

$45,736

Effective / month

$701.36

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.