Posted: April 26, 2017 in Kenworth

Following is a recap of an article in COMMERCIAL CARRIER JOURNAL written by Jason Cannon on his T880S test drive      The T880S, at its core, is a T880 with some added features that improve upon the W900S model it likely will replace.  Kenworth’s venerable W900S was practically purpose-built for mixer operations but adaptable enough to find its way in a variety of vocational applications.  The T880S was designed with more flexibility right off the assembly line, makin upfitting easier, more customizable and more streamlined.  The truck is available with a 114-inch BBC –  about 6 inches shorter than the W900S – and a best-in-class 28-inch bumper setting.  The T880S’s bumper setting is especially important in spec’ing a chassis that is compliant with the Federal Bridge Formula.  More typical for dump applications, a 29.5-inch bumper setting is also available, as is a 31.5-inch sturdy box bumper.  Truck operators can spec mixer-tapered (114-inch BBC), dump-tapered (115.5-inch BBC) or straight box bumpers (117.5-inch BBC) in a variety of finishes and materials, and removable cast center-mounted tow hooks are available depending on bumper selection.  The T880S comes standard with a Paccar MX-13 engine that kicks out 510 hp and 1850 lb-ft of torque.  The EPA 17 MX-13 powering my dump truck model was powerful and flexed serious muscle hauling 10 tons of sand around southern Ohio.  The Eaton Ultrashift Plus really shined in stop-and-go traffic, effortlessly dragging 20,000 pounds of material around surface roads and the highway.  For the weight-sensitive – like mixer applications –  a 400-pound lighter MX-11 engine will give you 430hp and 1650 lb-ft of torque.  By dropping a little weight under the hood, customers can pick up a couple more yards of concrete.  The Allison 4700 seven-speed automatic transmission in my test truck was smooth and comfortable, making runs to and from the jobsite for more payload far less taxing on the driver.  The cab is a marked improvement over the legacy W900S.  It’s larger, more comfortable, and quieter.  With a 3.6-inch lower hood crown than the W900S, the T880S enhances visibility with up to four feet additional ground visibility, and its panoramic view is remarkably noticeable from the driver’s seat.  The new T880S is available with a set-forward front axle ranging from 14,600 to 22,800 pounds.  Single, tandem, or tridem drive axles and a wide variety of factory installed lift axles are among a range of options available, and the T880S also features clear back-of-cab options that make it easy to configure the truck body.  A newly-styled complex reflector halogen headlight provides a projector beam lighting performance, and a polycarbonate lens and UV inhibitor offers extended life.  Basically, the headlights are the same as what you’ll find on the T880: they’re just designed upside down to allow for tire clearance.  The truck’s five-piece hood, made from a lightweight material, that Kenworth says is tougher and more durable than fiberglass, is borrowed from the T880, along with bolt-on fenders the company says can be replaced in under two hours in the event of a body repair. As Kenworth works toward ushering out the W900S, a model that’s been a vocational staple for almost a generation, it make sense to do so with some of the designs and technologies that have made the T880 a success.  The switch, to-date, has been well received.  About 800 are currently on order, and the backlog log is filled thru June, with many of those customers being W900S converts.



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