Miles
381,112 mi
Year
2021
Engine
Cummins X15
Horsepower
400 HP
Transmission
Automated Manual
Axle Config
6x4
This 2021 Peterbilt 579 is a used Class 8 commercial truck, listed in the Day Cab category. Configured as a day cab, it is suited for regional and local distribution routes. The truck is powered by a 400-horsepower Cummins X15 diesel engine, paired with a 12-speed automated manual transmission. The chassis features a 186-inch wheelbase, and a gross vehicle weight rating of 52,350 lbs. The odometer shows 381,112 miles, and the unit is offered in fair condition. The current asking price is $58,400, representing the dealer's current asking price. This truck is currently offered by Rush Truck Centers. Interested parties should contact the dealer directly to verify availability, confirm specifications, and arrange an on-site inspection before purchase. All specifications, odometer readings, and pricing information are provided by the selling dealer and should be independently verified prior to purchase.
Rush Truck Centers
St. Peters, MO
Asking
$58,400

VIN 1XPBD49XXMD739149 · Stock #rush-620679
St. Peters, MO
Asking price over time
1 dealer-initiated drop · total −$6,000 (9.3%)
Asking now
$58,400
Initial ask
$64,400
Comp median
$55,400
Days listed
37
Comp median is the median asking price across N similar trucks (same make/model/year/spec) in the last 90 days. Not a valuation. We never tell you whether to buy.
2021 Peterbilt 579 — get instant answers about specs, inspection tips, or comparisons.
This 2021 Peterbilt 579 is a used Class 8 commercial truck, listed in the Day Cab category. Configured as a day cab, it is suited for regional and local distribution routes. The truck is powered by a 400-horsepower Cummins X15 diesel engine, paired with a 12-speed automated manual transmission. The chassis features a 186-inch wheelbase, and a gross vehicle weight rating of 52,350 lbs. The odometer shows 381,112 miles, and the unit is offered in fair condition. The current asking price is $58,400, representing the dealer's current asking price. This truck is currently offered by Rush Truck Centers. Interested parties should contact the dealer directly to verify availability, confirm specifications, and arrange an on-site inspection before purchase. All specifications, odometer readings, and pricing information are provided by the selling dealer and should be independently verified prior to purchase.
Introducing the 2021 Peterbilt 579, a robust and reliable day cab that combines power and efficiency for your hauling needs. Equipped with a Cummins X15 engine delivering 400 horsepower, this truck is designed to tackle demanding routes with ease. The 12-speed Endurant transmission ensures smooth shifting and optimal performance, making it well-suited for long hauls or heavy-duty applications. With a GVWR of 52,350 pounds, this vehicle is capable of handling substantial loads, making it an excellent choice for those in the freight and logistics industries. Having logged 381,112 miles, this used model has proven its durability and readiness for the road ahead. Recently reduced in price, this Peterbilt 579 offers exceptional value for those looking to enhance their fleet with a dependable workhorse. Visit Rush Truck Centers – St. Peters today to learn more about this impressive Peterbilt 579 and see how it can meet your business needs. Our knowledgeable team is here to assist you in finding the perfect vehicle for your operations.
2021 Peterbilt 579 · 381,112 mi
Est. monthly
$1,114.36
Pre-tax purchase price
$5,840
Owner-ops: 10–20% typical
Prime 7–9% · Median 9–12% · Subprime 14%+
Deducted from financed amount
Drives Federal Excise Tax (FET)
Skip if straight truck under 33k GVWR or trailer under 26k GVWR.
Off — used vehicles are exempt
$0
Often 0% for interstate commercial use
Some states cap (CA $85, NY $75)
State title + lien fee
Lowers monthly; paid as lump at term
Amount financed
$53,060
Total interest
$13,802
Total cost
$72,702
Effective / month
$1,114.36
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.
Market Index
2021 Peterbilt 579 X15
Median Price
$56,900
This listing
+3% vs. comp median
Active listings
244