Year
2021
Engine
Cummins ISX / X15
Horsepower
400 HP
Transmission
Automated Manual
Axle Config
6x4
Fuel
Diesel
This 2021 Kenworth T680 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 Cummins diesel engine, paired with a automated manual transmission. The chassis features a 228-inch wheelbase. The unit is offered in new condition as reported by the selling dealer. The current asking price is $45,900, representing the dealer's current asking price. This truck is currently offered by Wisconsin Kenworth, located in Green Bay, WI. 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. This listing was sourced from the dealer's active inventory feed and reflects the stock availability and specifications at the time of the most recent data synchronization.
Wisconsin Kenworth
Green Bay, WI

VIN
1XKYD49X5MJ435132
NHTSA VerifiedStock #
csm-UMJ435132A
Dealer
Wisconsin Kenworth
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This 2021 Kenworth T680 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 Cummins diesel engine, paired with a automated manual transmission. The chassis features a 228-inch wheelbase. The unit is offered in new condition as reported by the selling dealer. The current asking price is $45,900, representing the dealer's current asking price. This truck is currently offered by Wisconsin Kenworth, located in Green Bay, WI. 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. This listing was sourced from the dealer's active inventory feed and reflects the stock availability and specifications at the time of the most recent data synchronization.
2021 Kenworth T680 UMJ435132A
2021 Kenworth T680
Est. monthly
$878.09
Pre-tax purchase price
$4,590
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
$41,810
Total interest
$10,875
Total cost
$57,275
Effective / month
$878.09
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 ISX / X15
Median Price
$48,900
This listing
6% below market median
Active listings
26
Asking-Price Intelligence
We track asking prices and listing behavior, not transaction prices. We do not know the prices these units actually sold for.