Nissan Diesel America has introduced three new truck models in the light-duty and medium-duty commercial market.

The new models are the UD1100 in the Class 3 light market and in the medium-duty market, the UD2600 in Class 6 and the UD2800 in Class 7. Nissan also added the UD Xpress for the hotshot market.In addition, Nissan said it would rename its existing entire line of trucks to provide an easier identification system. The number after the UD symbol will indicate the model's gross vehicle weight rating, a measure of its axle load capacity. Thus the UD2600 has a GVW of 26,000 pounds.

Nissan's UD1100 is the company's first Class 3 entry. It is offered in three wheelbase sizes, ranging from 110 inches to 153 inches, is equipped with a 120-horsepower Nissan turbocharged diesel engine and is offered in either a 5-speed overdrive manual or a 4-speed automatic transmission.

The UD2600 is offered in five wheelbase sizes ranging from 147 inches to 218 inches and is equipped with a 180-horsepower turbocharged diesel engine. It is designed with a 6-speed manual transmission, although an automatic transmission also is available.

The third model, the UD2800, is similar to the UD2600 but has a higher GVW rating of 27,500 pounds vs. 26,000 pounds and is equipped with radial tires rather than ply tires.

The Irving, Texas-based U.S. subsidiary also announced the addition of a special tractor version of the company's Class 5 truck for the hotshot market. The UD Xpress includes an integral sleeper and offers a variety of optional equipment.

The three trucks will be available for delivery this summer.

Nissan said it chose to position its UD2600 and UD2800 in this class

because one of every five import trucks sold in 1987 were in the 24,000 to 27,000 GVW range.