http://www.isuzucv.com/images/h_red2.jpg
They call it the H seiries

also have a much larger one with 54,600 lbs GWVR
http://www.isuzucv.com/images/h_tandem.jpg
Differnent engine
http://www.isuzucv.com/images/h_engine.jpg
6HK1-TC Engine
Designed specifically for medium duty trucks, the Isuzu 6HK1-TC overhead cam, in-line six-cylinder diesel engine is a proven performer. Features include replaceable cylinder liners, nitrided heat-treated crankshaft, internal oil cooling channels for pistons and an oil life monitoring system. Available horsepower choices range from 200 to 300 HP with 520 to 860 lb-ft of torque.

Interesting to say the least.

Actually, the engine ( 7.8 DuraMax, 6H1 ) has been available in the Chevy/ GMC line for about 2 years, the dealers are just now starting to push them.

I am currently enrolled in a training class for this engine, as we are seeing more and more of them at my dealership.

GM is attempting to get away from CAT and have thier own MD engine line, though CAT is still an option.

Kevin

The Izusu engine, now called Duramax has been in G.M.s medium duty tilt cabs since the early 80's. The first were dry sleeves, and the (new) generation is wet sleeve. No dry ice to put the sleeves back in. CAT is having a serious emission problem which is why G.M. dealers are trying to sell the (new?) duramax

Would these new Isuzu trucks be using the in-line 6 (Duramax 7800) engine in something similar to the GMC/Chevy 5500 in 4X4? If so that would be VERY interesting. This would open up a large selection of manual transmissions to be used in the Class 4/5 trucks ... e.g. Eaton's 5/6 speed manuals.
I was disapointed yesterday (at a Chevy Dealership in Manchester NH) to see that the 5500 4X4 only comes with the V8 diesel and an automatic trans. I think these should have at lease the 7800 in-line 6 engine as an option or better yet, the standard engine.

When you talk about the 6 cyl engine you are talking about the C-6500 or C-7500 chassis.

If you would go to a Chevy or GMC Commercial Truck dealer or even just take a close look at the sales brochure you will see that these are two different trucks (meaning C-4500/C-5500 vs C-6500/C-7500).

Stand next to each size truck. C-4500/5500 uses a 19.5 tire. C-6500/7500 uses 22.5 tires. The frames are heavier on the C-6500/7500, heavier axels, etc. Fuel tanks on the C-4500/5500 are inside the frame rails. On the C-6500/7500 fuel tanks are under the doors of the cab.

This is a older brochure but I find Eaton Fuller transmissions available in the C-6500/7500. There are three 5 speeds, three 6 speeds, two 9 speeds, and one 10 speed listed in the sales brochure.

Some of what you want is available, just not in a class 5 chassis. You need to move up to the class 6 chassis to get more of what you want.

Also the GMC web site www.gmc.com (http://www.gmc.com) has all the specs on these chassis. Find the commercial section and go to the medium duty truck area.


Want a 4 x 4 in a C-6500/7500? Go look at www.tulsatruckmfg.com (http://www.tulsatruckmfg.com) The grey truck on the home page is a C-7500 crew cab. They have built several for the Navy Seal teams. I was at their shop last May and they had several that were being converted or were already done. Cost to convert to 4 x 4 is about $20,000.

GM has been offering a 61,000 GVWR on tandems

Because of all the reg's and cdl's, G.M. has backed away a little. In California any vehicle over 10,000 lb's G.V.W. needs a ca number. The state is really pushing the highway patrol to pull everybody over and give them tickets. The 4500 C series from monroe is one they are going after. Even though it is a personal vehicle. The manufacures have upgraded G.V.W.s so much on 3/4 ton's and 1 ton's, they are almost all over 10,000 gvw. G.M. want's to put the 7800 in the 4500 and 5500 with the Eaton trans, plenty of room. Doe's the customer want to pay the weight and cdl fees?