fits model: Zr, Zl, Efi, 500. make: Arctic-cat, Arctic. year: 1999–2000.

( Brand: Arctic Cat ), ( Manufacturer Part Number: 0662-246 ), ( Part Type: Block Engine )
The Arctic Cat ZR Z unused 500 EFI block engine, model years 1999 and 2000, is a high-performance snowmobile powerplant that boasts a technically advanced and efficiently designed architecture. This engine, with model number 0662-246, was a significant step forward in Arctic Cat's commitment to delivering reliable and powerful engines to their customers.
The ZR 500 EFI engine is characterized by its sleek, compact design, which offers increased power output while maintaining a minimal weight. This engine is based on Arctic Cat's renowned 1200 CC C-TEC2 two-stroke design, but with several additions to cater specifically to the ZR line.
One of the most notable advancements is the Electronic Fuel Injection (EFI) system. This state-of-the-art technology ensures optimal fuel mixture delivery, providing smooth, consistent power throughout the entire RPM range. In turn, this leads to improved fuel efficiency, better throttle response, and reduced emissions.
The engine block itself is made from high-quality aluminum alloy, providing excellent heat dissipation and durability. The crankshaft is designed for high torque output, while the connecting rods feature needle bearings for reduced friction and smooth operation. The forged pistons are made from a strong, lightweight material, allowing for greater power and longer engine life.
Additionally, this engine boasts a wet-sump lubrication system that provides better oil distribution to all moving parts. This features a spin-on oil filter for easy maintenance and improved engine life.
Furthermore, the ZR 500 EFI utilizes Arctic Cat's patented CVR (Centrifugal Vapor Recirculation) system, which significantly reduces emissions while maintaining the optimal power output. This system recirculates unburned fuel vapors back into the intake tract for efficient combustion.
In conclusion, the Arctic Cat ZR Z unused 500 EFI block engine, model years 1999 and 2000, is a finely tuned and technically advanced powerplant. Its compact design, Electronic Fuel Injection system, high-quality materials, and advanced emission-reducing technologies make it a pleasure to use for snowmobile enthusiasts. This engine represents a significant milestone in Arctic Cat's legacy of producing reliable and high-performance engines.
The Arctic Cat ZR 500 EFI (model years 1999 and 2000) is a snowmobile with a powerful and efficient 500cc two-stroke engine. Below are some pros and cons that might help you decide if purchasing this snowmobile is the right choice for you:
Pros:1. Power: The ZR 500 EFI offers a strong and responsive engine, making it suitable for riders who enjoy high-performance snowmobiles. It delivers excellent power and acceleration, which is beneficial when navigating through deep snow or climbing steep hills.
2. Fuel Efficiency: The engine's Electronic Fuel Injection (EFI) system ensures better fuel economy. This feature not only saves money on fuel costs but also reduces the need for frequent refueling stops during long rides.
3. Modern Design: These model years reflect some updates to the classic Arctic Cat ZR series, including an improved chassis, updated graphics, and an overall modern appearance.
4. Reliability: Arctic Cat snowmobiles have a reputation for durability. A well-maintained ZR 500 EFI can provide many seasons of enjoyable use.
5. Versatility: The ZR 500 EFI is suitable for a variety of snow conditions, making it an excellent choice for riders who live in areas with diverse terrain or weather conditions.
Cons:1. Maintenance: Two-stroke engines, like the one in the ZR 500 EFI, require more frequent maintenance compared to four-stroke engines. Riders looking for a low-maintenance snowmobile may want to consider other options.
2. Noise Level: Two-stroke engines tend to be louder than their four-stroke counterparts. This can be a concern for those seeking a quieter riding experience or living in noise-sensitive areas.
3. Fuel Consumption: While the EFI system manages fuel efficiently, the ZR 500 EFI still has higher fuel consumption compared to newer, more efficient snowmobiles on the market.
4. Limited Storage: These model years of the Arctic Cat ZR 500 EFI have limited storage offerings. Riders who enjoy extended trips may need additional luggage options or modifications to accommodate their gear.
5. Age: Being late-model, these snowmobiles are now over twenty years old, which might pose some challenges regarding availability of spare parts and potential costs for repairs.
In conclusion, the Arctic Cat ZR 500 EFI, particularly the 1999 and 2000 model years, offers a powerful and efficient experience for snowmobile enthusiasts. While it has an excellent balance of performance and fuel economy, prospective buyers should consider its age, maintenance requirements, and limitations on storage and noise before making a purchase.
If you're looking for a high-powered snowmobile that's relatively fuel-efficient and suitable for a range of snow conditions, this could be an excellent choice for you. However, if you're more concerned about low maintenance, a quieter experience, or luggage capacity, you might want to broaden your search to include other models or more recent offerings from Arctic Cat or other manufacturers.
Ultimately, the choice is yours, and I encourage you to carefully consider the pros and cons before making a decision, taking into account your personal preferences and riding style. Happy snowmobiling!
This engine can be used in both 1999 and 2000 Zr Zl Efi model's. Sled was in great running condition with 4414 miles.