1. ABSTRACTIn 1994, the Kubota Corporation launched the Grand “L” Series of compact tractors to the worldwide market. SAE J1150 -TERMINOLOGY FOR AGRICULTURAL EQUIPMENT defines compact tractor as a small agricultural tractor equipped with a 540rpm rear PTO (SAE J1170) and a three-point hitch designed for Category I (SAE J715)implements only. These tractors generally weigh less than 1800kg, have less than 30 PTO kw, and are primarily designed and advertised for use with mowers and light-duty material handling equipment. The concept behind the development of this series of tractors comprises of 4 basic types with PTO power ranging from 18.7 to 27.6 kW (25 to 37 HP). It offers operator comfort, excellent dexterity, and high performance efficiency in a compact tractor configuration. The tractor performs well without any special skill by the operator. Further, it can utilize with equal efficiency such varied applications as light construction, grounds maintenance, and agriculture. In this paper, the author will explain the measures taken to develop the Grand “L” Series of tractors using the basic concepts while demonstrating how such measure contributes to improved performance, maneuverability, and driving comfort in a variety of applications.