2026 Peterbilt 579

$181,500

NewClass 8Sleeper Truck

Year

2026

Engine

Cummins X15

Horsepower

450 HP

Transmission

Automated Manual

Axle Config

6x4

Fuel

Diesel

Description

2026 Peterbilt 579 Ultraloft 80" Sleeper complete with Cummins X15 450HP engine. 12 Speed Endurant transmission. Sterling Gray Premier Interior. White with chrome bumper.

Specifications

Engine

Make: Cummins
Model: X15
HP: 450
Torque: 1650 ft-lb
Displacement: 14.9L
Fuel: Diesel

Drivetrain

Dealer

Rush Truck Centers

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2026 Peterbilt 579

$181,500

NewClass 8Sleeper Truck

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Trans. Model

EEO-18F112C12

Chassis

Wheelbase: 235"
GVWR: 53,200 lbs
GCWR: 80,000 lbs
Front Axle: 13,200 lbs
Rear Axle: 40,000 lbs
5th Wheel Type: Jost JSK37

Equipment

Wheels: Aluminum

Details

Body Type: Truck-Tractor

VIN

1XPBD49X1TD802234

NHTSA Verified

Stock #

rush-629573

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: 450
Torque: 1650 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: 235"
GVWR: 53,200 lbs
GCWR: 80,000 lbs
Front Axle: 13,200 lbs
Rear Axle: 40,000 lbs
5th Wheel Type: Jost JSK37

Sleeper

Size: 80"

Equipment

Wheels: Aluminum

Details

Body Type: Truck-Tractor

Description

2026 Peterbilt 579 Ultraloft 80" Sleeper complete with Cummins X15 450HP engine. 12 Speed Endurant transmission. Sterling Gray Premier Interior. White with chrome bumper.

Features

Chrome Package

Finance calculator

2026 Peterbilt 579

Est. monthly

$3,441.15

Vehicle price

Pre-tax purchase price

Term (months)

Down payment (10%)

$18,150

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

$163,850

Total interest

$42,619

Total cost

$224,619

Effective / month

$3,441.15

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.