This manual covers a range of Arctic Cat snowmobile models, including the Prowler, Cougar, Panther, EXT, Z, ZL, ZR, POWDER Special, and POWDER Extreme, produced between 1990 and 1998. These vehicles are known for their robust engineering and performance, designed for enthusiasts seeking reliable winter recreation. Specific model variants such as the Panther 400, Panther 550, EXT 550, EXT 580, EXT 600, Z 440, ZL 440, ZR600, and ZRT600 are detailed within this guide. Arctic Cat's heritage in snowmobile manufacturing is evident in the innovative designs and durable construction of these models, making them a popular choice for both casual riders and dedicated mechanics. This comprehensive service manual provides extensive information for all mechanical and electrical systems. It includes detailed procedures for engine maintenance and repair, transmission and clutch servicing, suspension and steering adjustments, brake system overhauls, and electrical diagnostics. The manual is designed to assist owners, mechanics, and technicians in performing routine maintenance, troubleshooting complex issues, and executing complete repairs. With detailed illustrations and step-by-step instructions, this resource ensures that users can effectively maintain their Arctic Cat snowmobiles, preserving their performance and longevity.