Heavy Duty Trucking Logo
MenuMENU
SearchSEARCH

Jost Fifth Wheel Made Standard on Kenworth T680

The Kenworth T680 now comes standard with the Jost JSK37USB fifth wheel, designed for simple and safe coupling.

July 13, 2018
Jost Fifth Wheel Made Standard on Kenworth T680

JOST JSK37USB fifth wheels, which now come standard on the Kenworth T680, offer a simple and safe design with only four moving parts.

Photo courtesy Kenworth

1 min to read


The Kenworth T680 now comes standard with the Jost JSK37USB fifth wheel, designed for simple and safe coupling.

The Jost fifth wheel only has four moving parts and has a simple mechanism that allows for infinite adjustments versus notched adjustments. Wear adjustment is maintained with a single adjustment screw.

Ad Loading...

The ability to perform maintenance and minor rebuilds on the Jost fifth wheel without removing it from the chassis can lower cost of ownership, according to Kenworth. The Jost fifth wheel features a low 60-pound pull force handle to make operation easier for drivers.

Jost offers a five-year warranty on all of its durable cast ductile iron top plates.

“We continue to add excellent products as standard equipment that further enhances the performance of the Kenworth T680,” said Kurt Swihart, Kenworth marketing director. “The JOST fifth wheel provides safety, durability, ease of maintenance, low cost of ownership, and weight savings that benefit our customers.”


Related: Kenworth T680 Features Bendix Font and Rear Disc Brakes

More Equipment

Illustration showing DEF tank and Detroit engine
Equipmentby Deborah LockridgeJune 18, 2026

DTNA Software Update Gives Truckers More Time Before DEF Derates Take Effect

The changes reflect EPA guidance aimed at reducing downtime caused by emissions-system faults while maintaining compliance requirements.

Read More →
photo of a military truck with "Great American Trucks" wording on top of red-white-and-blue background.
Equipmentby Jack RobertsJune 16, 2026

Great American Trucks: The International MaxxPro MRAP

Built from an International WorkStar chassis and powered by a MaxxForce diesel, the MaxxPro MRAP became one of the most important military trucks of the Iraq War era.

Read More →
2026 Mack Granite interior.
Equipmentby News/Media ReleaseJune 11, 2026

New Mack Granite Cab Puts Driver Comfort Front and Center

Mack’s next-generation vocational truck features a roomier cab, premium seating, advanced steering technology, and a driver-focused interior designed with direct input from professional operators.

Read More →
Ad Loading...
Mack Trucks Pioneer Nascar Salutes truck.
Equipmentby News/Media ReleaseJune 11, 2026

Mack Unveils Fan-Selected Patriotic NASCAR Pioneer Wraps

Racing fans picked the patriotic design now featured on three Mack Pioneer trucks hauling NASCAR equipment across the country during the 2026 season.

Read More →
Michelin X Line Grip D tires.
Equipmentby News/Media ReleaseJune 9, 2026

Michelin Expands X Line Grip D Tire Line

Michelin is expanding its X Line Grip D drive tire lineup with a new pre-mold retread and additional sizes, building on what the company says is strong fleet adoption of the tire's traction, mileage, and fuel-efficiency benefits.

Read More →
Illustration of SCR/DEF system on heavy-duty truck
Equipmentby News/Media ReleaseJune 4, 2026

Engine Technology Forum Launches SCR, DEF Resource Center Amid Emissions Debate

The Engine Technology Forum’s new online hub aims to provide fleets, policymakers, and equipment owners with fact-based information about selective catalytic reduction technology, diesel exhaust fluid and emissions compliance.

Read More →
Ad Loading...
Artist rendering of dealership with trucks and trailers parked outside
Equipmentby News/Media ReleaseJune 2, 2026

Prime Inc. to Open $7.9M Flagship Used-Truck Dealership

A new driver-focused facility to sell Prime Inc's used trucks and trailers will be the first purpose-built location in the company's history.

Read More →
Red Kenworth truck pulling Paper Transport trailer
Fuel Smartsby Deborah LockridgeJune 2, 2026

Lessons Learned About Alternative Fuels: Start Small, Stay Flexible

Practical advice on adopting alternative fuels and ZEVs from HDT's 2026 Top Green Fleets, from renewable diesel and natural gas to electric trucks.

Read More →
Kenworth T680.
Equipmentby News/Media ReleaseMay 27, 2026

Kenworth Names Peter Ahrens General Manager

Leadership changes at Kenworth take effect July 1 as the OEM promotes two longtime Paccar executives to key management roles.

Read More →
Ad Loading...
White Hino Le electric tractor on show floor
Equipmentby News/Media ReleaseMay 26, 2026

Hino Adds Electric Class 6/7 Truck

Hino says the Le Series is an important step in the company's efforts to reduce environmental impact and support its customers’ sustainability goals.

Read More →