2021 Kenworth T680

$42,999

UsedClass 8Sleeper Truck

North Little Rock, AR

Miles

421,000 mi

Year

2021

Engine

PACCAR MX 13 Liter

Horsepower

455 HP

Transmission

Automatic

Fuel

Diesel

Specifications

Full model specs

Engine

Make: PACCAR
Model: MX 13 Liter
HP: 455
Fuel: Diesel

Drivetrain

Transmission: Automatic

Dealer

Arrow Truck Sales North Little Rock

North Little Rock, AR

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Asking

$42,999

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2021 Kenworth T680 in North Little Rock, AR

−$2,000 · 101d

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VIN ARRWSTCK000271269 · Stock #arrow-271269

2021 Kenworth T680

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UsedClass 8Sleeper Truck

Asking price over time

1 dealer-initiated drop · total −$2,000 (4.4%)

This listing90-day comp medianDealer drop

Asking now

$42,999

Initial ask

$44,999

Comp median

$49,999

Days listed

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.

Finance calculator

2021 Kenworth T680 · 421,000 mi

Est. monthly

$823.25

Vehicle price

Pre-tax purchase price

Term (months)

Down payment (10%)

$4,300

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

$39,199

Total interest

$10,196

Total cost

$53,695

Effective / month

$823.25

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 Kenworth T680 MX 13 Liter

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Median Price

$44,999

This listing

−4% vs. comp median

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