New product announcements: 12/30/2009 Natural-Gas Engines for Trucks: Low Emissions Kenworth Truck Co. is now offering Cummins Westport ISL G natural-gas engines for its T800 and W900S models. The ISL G engine operates on either compressed natural gas or liquefied natural gas. The engine has a maintenance-free, three-way catalyst and does not require the use of selective catalytic reduction or a diesel particulate filter. The engine is rated at 320 hp and 1,000 lb-ft of torque and is 2010-compliant. The engines can be configured to suit user applications and range requirements. Kenworth Truck Co.; 425-828-5000; www.kenworth.com Electrical Panel Covers: Meet
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.