2021 Peterbilt 579

$51,900

UsedClass 8Sleeper Truck

Tulsa, OK

Miles

553,404 mi

Year

2021

Engine

PACCAR MX-13

Horsepower

455 HP

Transmission

Manual

Axle Config

6x4

Description

FOR SALE Multiple Units Available, 2021 Peterbilt 579 PACCAR MX-13 • 455 HP • PACCAR 12-Speed Endurant Transmission This 2021 Peterbilt 579 offers a PACCAR MX-13 engine rated at 455 HP, paired with a PACCAR PO-16F112C12 Endurant 12-speed automated transmission. Equipped with a 123” BBC and an 80” UltraLoft sleeper for optimal driver comfort. Key specifications include a 2.64 rear axle ratio, tandem rear axles, and low air leaf suspension. Aluminum wheels fitted with 22.5” tires deliver a sharp, professional look and solid performance. GVWR rated at 52,000 lbs with a 228” wheelbase. Clean, fleet-maintained unit—ready to work. Financing options available | Trades welcome

Specifications

Engine

Make: PACCAR
Model: MX-13
HP: 455
Displacement: 12.9L
Fuel: Diesel

Drivetrain

Transmission: Manual

Dealer

Rush Truck Centers

Tulsa, OK

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2021 Peterbilt 579

$51,900

UsedClass 8Sleeper Truck

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Tulsa, OK

Market Index

2021 Peterbilt 579 MX-13

View full index →

Median Price

$57,900

This listing

10% below market median

Active listings

118

Description

Finance calculator

2021 Peterbilt 579 · 553,404 mi

Est. monthly

$991.50

Vehicle price

Pre-tax purchase price

Term (months)

Down payment (10%)

$5,190

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

$47,210

Total interest

$12,280

Total cost

$64,680

Effective / month

$991.50

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.