Varies by state/national law. Typical allowance for a tandem truck would be 54,000 lbs gross weight, regardless of manufacturer.
When you get into a state such as North Carolina, which has some very idiosyncratic bridge law weight, and which may vary by the vehicle's wheelbase (and, I might add, only applies to intrastate vehicles, while interstate vehicles aren't affected by this), it gets a lot more complicated.
empty weight
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It's a trick question. The gross weight would be the loaded weight (combined weight of both the truck itself AND its load). The empty weight would be the net or TARE weight.
In the vicinity of 24,000 - 26,000 lbs, all things dependent.
Kenworth... what? Kenworth manufactures a range of trucks from Class 5 through Class 8... as is, we don't know if you're talking about a T300 box truck, a T800W heavy haul tractor, a W900L line haul tractor, a T800 dump truck, etc. Need to be more specific.
Some are. I know one of our contractors who has a Kenworth T-800 dump truck with a 525 Cummins, and that truck will move, I tell you. But a normal fleet truck isn't going to be particularly fast.
The gross weight includes the item and any packaging that may be on it or the vehicle that is hauling it. Net weight refers to the weight of the item only. The weight of a dump truck filled with gravel would be the gross weight, but the net weight would be weight of the gravel by itself.
GVW is gross vehicle weight which is different than GCWR (gross combination weight rating). Pulling a trailer weighing 10 tons should not cause you any problems. However I am assuming you have your dump tagged at a little less than 55,000 to avoid paying heavy use tax. Even if this is not the case and you have tagged it for a heaver weight be aware that pulling that trailer while dump and trailer are loaded may put yousignificantly over your tagged weight. Just watch your gross weight or you can re-tag your dump for 80,000. When GCWR is not available on the power unit DOT will add the GVW for the dump and the trailer to get a GCW (gross combination weight).
I have a diesel 4x4 that has dual wheels. It weighs 8300 lbs.
Which weight? Gross weight? Tare weight? What configuration? 1 ton pickup? Single axle Class 7/8 truck? Tandem axle truck? Tri-axle truck? Quad axle truck? Quint axle truck? Centipede? "Superdump" quint with Strong Arm? Transfer truck? Tractor-trailer end dump, or belly dump, or side dump? Try to narrow down the variables a bit. There's really no way of knowing what an "average" dump truck is without knowing statistics of how many single axle, tandem, tri-axle, quad, quint, centipede, and superdump dump trucks are out there - to the best of my knowledge, no such statistics have been compiled. At the company I work for, our tandem axle dumps (with steel dump bodies) weigh between 23,000 and 24,500... the 23,000 lbs. trucks are the Peterbilt 330s, and the 24,500 lb. trucks are the Kenworth T800s with "rock tub" steel bodies, high lift gates, and split gate beds. These are the tare (empty) weights, not the loaded weights.
Front right of the engine.
Not if it has a Gross Vehicle Weight Rating of 26,000 lbs. or less.