fits model: Star, Trail. make: Polaris. year: 1985–1989.

( Manufacturer Part Number: 3083563 )
Product Description for Polaris Crankcase, Part Number: 3083563 for Polaris Sportsman 85-89, 340cc
The Polaris Sportsman 85-89, 340cc is a versatile all-terrain vehicle known for its power and durability. An essential component of its engine system is the crankcase, which plays a critical role in protecting the internal engine components while enabling the transfer of power from the engine to the drivetrain. Polaris offers a top-notch replacement crankcase, specifically designed for the Sportsman 85-89 model with a 340cc engine, bearing the part number 3083563.
With a robust construction, this replacement Polaris crankcase is engineered to meet OEM specifications, ensuring a perfect fit and seamless integration into your vehicle. The molded design enhances its durability while contributing to weight reduction and improved overall engine performance. The new crankcase is precision-cast using advanced materials that can withstand the demanding conditions off-road environments pose.
When it's time for a replacement, trust Polaris' 3083563 crankcase to restore your Sportsman 85-89 ATV to its optimal performance level. This component's excellent fitting ensures that installation is a straightforward process, with minimal need for modifications or additional components. Plus, it comes with a comprehensive warranty, providing peace of mind for your investment.
In summary, the Polaris 3083563 crankcase for the 85-89 Sportsman 340cc is an essential upgrade for committed off-road enthusiasts and those who demand the highest standards of quality and reliability for their vehicle. With its superior design, durability, and fit, this crankcase is the smart choice for maintaining your Sportsman's performance and enjoying countless hours on the trails.
a. Powerful Engine: The Polaris Crankcase Superior Star Trail Sport 340cc comes with a powerful 340cc, single-cylinder, 4-stroke engine that delivers impressive performance and reliability.
b. Durable: The crankcase design of this ATV is rugged, providing increased protection against external impacts and ensuring a long service life.
c. Smooth Performance: The electronically controlled Continuously Variable Transmission (CVT) and automatic clutch offer smooth acceleration and effortless gear shifts.
d. Comfortable Seat: The comfortable and ergonomic seat is designed to provide excellent rider support and comfort, even during long rides.
e. Suspension System: The dual-A-Arm front and swing-arm rear suspension systems provide exceptional handling and stability, ensuring a great riding experience.
2. Cons:a. Price: The Polaris Crankcase Superior Star Trail Sport 340cc is an expensive ATV, which may not be within the budget of some potential buyers.
b. Limited Fuel Capacity: With a fuel tank capacity of only 3.7 gallons, this ATV may require frequent fuel stops during long rides.
c. Heavy: Weighing in at around 643 lbs, this ATV might be challenging for less experienced riders to maneuver, especially in tight spaces or up steep inclines.
d. No Power Steering: The absence of power steering might make it harder for some riders to turn and maneuver the vehicle, particularly during low-speed maneuvers.
Conclusion:The Polaris Crankcase Superior Star Trail Sport 340cc (Model: 3083563) is a well-built, powerful, and comfortable ATV with excellent suspension and smooth performance. However, its high price, limited fuel capacity, heavy weight, and lack of power steering may be barriers for some potential buyers. Considering the features and cons, this ATV might be an excellent investment for experienced riders looking for a durable and high-performance vehicle. For those with a tighter budget, or for less experienced riders, other options with lower prices and more amenities may be more suitable.
Bearing surfaces are in good shape. Check with bike bandit or your dealer. Some parts may or not work on other years and model's. Don't waste your money on cheap aftermarket replacements when you can buy this low mileage oem part for the same.
Motor lots a piston. Oem Polaris crankcase removed from a 87 Trail sport 340cc. P/N assemblies where is used fits 340cc only 1985 fin Star f850927 - crankcase 1985 ss twin es sew s851349 s850927 crankcase1986 nor sprint n860933 crankcase1987 crankcase sport1987 400 Saks n870759 n870559 600 n870757 sport n870433 n870933 e s1987 n870931 n870927 Trail n870761 n870561 sport1988 f880433 f880927 s1988 f880761 f880561 n880433 n880761 n880561 s880433 s880561 sp s880661 deluxe sport 1989 n890433 1989 n892433 n8909271989 s890433 1989 s892433 these are pictures of the actual item, and look how clean it.
Case is in good condition. Buyers outside of the continental us must contact prior to buying as shipping charges will vary. No damage to the case I can see.