I posted this on another board, but I thought I'd post it over here as well. GW Trucks offers two modern Kenworth W900 cab kits: a W900B & a W900S. Both kit are molded in white resin with very crisp details. Here is a quick "in-box" review of both cab kits.
The GW Trucks W900B is a complete cab & hood conversion kit including all of the parts you see here:
The kit includes the cab, hood & grill, interior floor pan with dash board & door panels, cab mounts, external air cleaner. visor, and intercooler. All parts are cast in white resin.
Here are some comparison shots of the GW Trucks W900B hood with the AMT hood (center) and the Revell of Germany hood (blue):
Now, onto the W900S. The W900S is a special sloped hood version of the W900 that is marketed toward the dump & mixer applications. The GW Trucks W900S kit includes all of the parts you see here:
Also available is the W900S Front End Suspension Correction Kit:
Again, all parts are molded in white resin, and have very clean, crisp details.
According to Gary, these cabs are mid to late 1990s. Correct engines for these trucks would be as follows:
W900B - Cummins M11, N14, or ISX (late 1990s), Caterpiller - C12, 3406B, or 3406E (late 1990s), Detroit Diesel - Series 60
W900S - Cummins M11 or ISM, Caterpiller - C10 or C11.