This comprehensive parts manual provides detailed information for the 1999 Polaris Diesel ATV. It includes detailed diagrams and descriptions of every part, component, and assembly for your ATV, making it easy to identify the specific parts you need. The manual is meticulously organized for quick and easy navigation, allowing you to find the information you need in a matter of seconds. This manual is an essential resource for anyone who owns or works on a 1999 Polaris Diesel ATV, whether you're a seasoned mechanic or a DIY enthusiast.

This manual covers a wide range of parts, including:

* **Engine:** The manual includes detailed specifications and diagrams for the engine, covering everything from the crankshaft and pistons to the fuel system and exhaust.
* **Transmission:** From the gearbox and clutch to the drive shaft and axles, the transmission components are all thoroughly illustrated and explained.
* **Chassis:** The manual provides detailed breakdown of the chassis, including the frame, suspension, wheels, and tires.
* **Electrical System:** The electrical system is comprehensively covered, including the battery, starter, alternator, and wiring diagrams.
* **Body and Accessories:** The manual also includes information on the body panels, lights, and other accessories, making it a true one-stop resource for all your parts needs.

The 1999 Polaris Diesel ATV, also known as the Polaris Sportsman 500 Diesel, was a revolutionary machine in the ATV world. This rugged and reliable ATV was the first production model to feature a diesel engine, bringing an unprecedented combination of power and fuel efficiency to the ATV market. The engine, a 499cc, two-cylinder, liquid-cooled diesel, offered a healthy dose of torque and impressive fuel economy, allowing riders to explore the trails for longer periods without needing frequent refueling stops. The engine was coupled with a CVT transmission, providing smooth and effortless power delivery. The Sportsman 500 Diesel showcased a robust chassis designed for off-road adventures, featuring a sturdy steel frame, independent front suspension with double A-arms and coil springs, and a rear suspension with swingarm and coil springs. It also boasted a generous ground clearance, promoting confident maneuvering over challenging terrain. Its features included a headlight, taillight, turn signals, and a digital instrument cluster, all contributing to a well-rounded driving experience.

While the 1999 Polaris Diesel ATV was a groundbreaking machine in its time, it was ultimately discontinued after only a few years. The reasons for its discontinuation were multifaceted, primarily revolving around the diesel engine's complexity and cost. The diesel engine, while offering fuel efficiency, required more frequent maintenance and presented higher repair costs compared to its gasoline counterparts. The limited market for diesel ATVs also played a significant role, as most consumers were accustomed to and more comfortable with gasoline-powered models. Despite its short lifespan, the 1999 Polaris Diesel ATV holds a special place in ATV history as a pioneering model that dared to explore a new territory in engine technology. The lessons learned from this model contributed to the development of advanced diesel engines for larger vehicles, paving the way for more fuel-efficient and powerful options in the automotive industry.