2021 Peterbilt 579

$48,500

UsedClass 8Sleeper Truck

Jacksonville, FL

Miles

504,620 mi

Year

2021

Engine

Cummins X15

Horsepower

450 HP

Transmission

Automated Manual

Axle Config

6x4

Description

This 2021 Peterbilt 579 offers comfort, performance, and reliability with its 80" high-roof single bunk sleeper and premier interior package featuring a built-in refrigerator. Powered by a Cummins X15 engine with 450 HP and paired with a 12-speed Endurant transmission, this truck delivers efficiency and durability for long hauls. With a 240" wheelbase, it’s designed for stability and a smooth ride. Recently fully serviced, it has undergone an 86-point inspection along with a DOT certification, ensuring it’s work-ready. Showing 504,620 miles, this Peterbilt is a dependable sleeper that’s built to keep you on the road. Se habla espanol

Specifications

Engine

Make: Cummins
Model: X15
HP: 450
Displacement: 15L
Fuel: Diesel

Drivetrain

Transmission: Automated Manual

Dealer

Rush Truck Centers

Jacksonville, FL

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2021 Peterbilt 579

$48,500

UsedClass 8Sleeper Truck

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Jacksonville, FL

Trans. Model

EEO-16F112C12

Chassis

Wheelbase: 240"
GVWR: 51,200 lbs
Front Axle: 13,200 lbs
5th Wheel Type: Jost JSK37

Equipment

Wheels: Aluminum

Details

Mileage: 504,620 mi
Body Type: Truck-Tractor

VIN

1XPBD49X8MD748058

NHTSA Verified

Stock #

rush-603059

Dealer

Rush Truck Centers

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Market Index

2021 Peterbilt 579 X15

View full index →

Median Price

$59,439

This listing

18% below market median

Active listings

265

Specifications

Engine

Make: Cummins
Model: X15
HP: 450
Displacement: 15L
Fuel: Diesel

Drivetrain

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

Chassis

Wheelbase: 240"
GVWR: 51,200 lbs
Front Axle: 13,200 lbs
5th Wheel Type: Jost JSK37

Sleeper

Size: 80"

Equipment

Wheels: Aluminum

Details

Mileage: 504,620 mi
Body Type: Truck-Tractor

Description

Features

Refrigerator

Finance calculator

2021 Peterbilt 579 · 504,620 mi

Est. monthly

$927.23

Vehicle price

Pre-tax purchase price

Term (months)

Down payment (10%)

$4,850

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

$44,150

Total interest

$11,484

Total cost

$60,484

Effective / month

$927.23

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	$48,500	-$399
Mar 20, 2026	$48,899	-$1
Feb 24, 2026	$48,900	--

Apr 10, 2026

$48,500

-$399

Mar 20, 2026

$48,899

-$1

Feb 24, 2026

$48,900

Market Index

2021 Peterbilt 579 X15

View full index →

Median Price

$59,439

This listing

18% below market median

Active listings

265

2021 Peterbilt 579

Description

Specifications

Dealer

2021 Peterbilt 579

Specifications

Engine

Drivetrain

Chassis

Sleeper

Equipment

Details

Description

Features

Finance calculator

Price History

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