2026 Peterbilt 579

$189,900

UsedClass 8Day Cab

Houston, TX

Year

2026

Engine

Cummins X15

Horsepower

500 HP

Transmission

Automated Manual

Axle Config

6x4

Fuel

Diesel

Description

Don't miss out on this new 2026 579 day cab tractor. This unit is powered by a Cummins X15 500 horsepower engine partnerd with an Eaton 12 speed automated transmission. It is equipped with a Meritor 12,500 front axle and Meritor 40,000 rear axle. Other features include 26" aluminum 100/90 gallon fuel tanks, aerodynamic 124" BBC hood, dual highback seats, concert class stereo, CB terminals, three piece rear window, aero rearview mirrors, multi function leather wrapped steering wheel, and all aluminum wheels. Call or stop by Rush Truck Center Houston or any of our other regional locations in Sealy, College Station, or Beaumont. Financing and delivery available.

Specifications

Engine

Make: Cummins
Model: X15
HP: 500
Torque: 1850 ft-lb
Displacement: 14.9L
Fuel: Diesel

Drivetrain

Dealer

Rush Truck Centers

Houston, TX

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2026 Peterbilt 579

$189,900

UsedClass 8Day Cab

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Houston, TX

Trans. Model

EEO-18F112C12

Chassis

Wheelbase: 210"
Cab Type: Conventional
GVWR: 52,000 lbs
GCWR: 80,000 lbs
Front Axle: 12,500 lbs
Rear Axle: 40,000 lbs
5th Wheel Type: Jost JSK37

Equipment

Wheels: Aluminum

Details

Body Type: Truck-Tractor

VIN

1XPBD49X0TD809322

NHTSA Verified

Stock #

rush-633253

Dealer

Rush Truck Centers

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Market Index

2026 Peterbilt 579 X15

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Median Price

$189,950

This listing

Near market median

Active listings

Specifications

Engine

Make: Cummins
Model: X15
HP: 500
Torque: 1850 ft-lb
Displacement: 14.9L
Fuel: Diesel

Drivetrain

Transmission: Automated Manual
Trans. Make: Eaton
Trans. Model: EEO-18F112C12
Speeds: 12
Axle Config: 6x4
Rear Ratio: 2.79

Chassis

Wheelbase: 210"
Cab Type: Conventional
GVWR: 52,000 lbs
GCWR: 80,000 lbs
Front Axle: 12,500 lbs
Rear Axle: 40,000 lbs
5th Wheel Type: Jost JSK37

Equipment

Wheels: Aluminum

Details

Body Type: Truck-Tractor

Description

Features

Aluminum Wheels

Finance calculator

2026 Peterbilt 579

Est. monthly

$3,599.93

Vehicle price

Pre-tax purchase price

Term (months)

Down payment (10%)

$18,990

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

$171,410

Total interest

$44,586

Total cost

$234,986

Effective / month

$3,599.93

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.