2021 Peterbilt 579

$64,997

UsedClass 8Day Cab

Sylmar, CA

Miles

381,865 mi

Year

2021

Engine

Cummins X15

Horsepower

400 HP

Transmission

Manual

Axle Config

6x4

Description

2021 Peterbilt 579 Day Cab, Cummins, X15 @400HP Smart Torque, Eaton Fuller 12 Speed Automated Transmission, Low Air Leaf Suspension, 22.5LP tires on All aluminum Wheels, Sliding 5th Wheel.

Specifications

Engine

Make: Cummins
Model: X15
HP: 400
Displacement: 15L
Fuel: Diesel

Drivetrain

Transmission: Manual

Dealer

Rush Truck Centers

Sylmar, CA

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2021 Peterbilt 579

$64,997

UsedClass 8Day Cab

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Sylmar, CA

Trans. Model

EEO-16F112C12

Chassis

Wheelbase: 180"
Cab Type: Conventional
GVWR: 52,350 lbs
Front Axle: 12,350 lbs
5th Wheel Type: Jost JSK36

Equipment

Wheels: Aluminum

Details

Mileage: 381,865 mi
Body Type: Truck-Tractor

VIN

1XPBD49X8MD754362

NHTSA Verified

Stock #

rush-604874

Dealer

Rush Truck Centers

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Market Index

2021 Peterbilt 579 X15

View full index →

Median Price

$59,439

This listing

9% above market median

Active listings

265

Specifications

Engine

Make: Cummins
Model: X15
HP: 400
Displacement: 15L
Fuel: Diesel

Drivetrain

Transmission: Manual
Trans. Make: Eaton
Trans. Model: EEO-16F112C12
Speeds: 12
Axle Config: 6x4
Rear Ratio: 2.79

Chassis

Wheelbase: 180"
Cab Type: Conventional
GVWR: 52,350 lbs
Front Axle: 12,350 lbs
5th Wheel Type: Jost JSK36

Equipment

Wheels: Aluminum

Details

Mileage: 381,865 mi
Body Type: Truck-Tractor

Description

2021 Peterbilt 579 Day Cab, Cummins, X15 @400HP Smart Torque, Eaton Fuller 12 Speed Automated Transmission, Low Air Leaf Suspension, 22.5LP tires on All aluminum Wheels, Sliding 5th Wheel.

Features

Aluminum Wheels

Finance calculator

2021 Peterbilt 579 · 381,865 mi

Est. monthly

$1,239.05

Vehicle price

Pre-tax purchase price

Term (months)

Down payment (10%)

$6,500

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

$58,997

Total interest

$15,346

Total cost

$80,843

Effective / month

$1,239.05

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.

Price History

Date	Price	Change
Apr 10, 2026	$64,997	-$2
Feb 24, 2026	$64,999	--

Apr 10, 2026

$64,997

-$2

Feb 24, 2026

$64,999

Market Index

2021 Peterbilt 579 X15

View full index →

Median Price

$59,439

This listing

9% above market median

Active listings

265

2021 Peterbilt 579

Description

Specifications

Dealer

2021 Peterbilt 579

Specifications

Engine

Drivetrain

Chassis

Equipment

Details

Description

Features

Finance calculator

Price History

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