fits make: Polaris.

( Brand: Wossner Pistons ), ( Manufacturer Part Number: K7040DA-2 ), ( Part Type: Piston )
The Wossner K7040DA-2 piston is a high-performance aftermarket solution for those seeking superior engine power and durability. Manufactured by the renowned German piston producer, Wossner, this piston is specifically designed for applications using a 70.37mm bore and a stroke length of 92mm, such as the Polaris 4-stroke engines like those found in the 850, 1000, and Ranger XP 1000 models.
The K7040DA-2 piston is engineered with utmost precision to ensure a perfect fit in the engine. Each piston is crafted using instance-hardened, forged aluminum alloy, which results in increased strength and rigidity. This superior material selection and manufacturing process enable the piston to handle the harsh demands of high-performance engines, resulting in outstanding durability and reliability.
The top ring groove on this Wossner piston features a cutting-edge, shot-peened finish, which helps create a better seal and improved ring grip for improved engine performance. This piston also includes a superior Secondary Oil Ring (SOR) design for efficient lubrication of the skirt and piston pin area, resulting in reduced friction and reduced power loss.
Moreover, the piston skirt has a dome shape that optimizes piston-to-liner contact for superior sealing and reduced noise. Each piston undergoes a stringent quality-control process to ensure the perfect balance between local and overall piston-to-crankshaft clearance for proper engine operation.
By upgrading to the Wossner K7040DA-2 piston, you can expect enhanced engine performance and power output, as well as exceptional durability and reliability making it the perfect upgrade for those seeking superior performance from their Polaris engine.
The Wossner K7040DA-2 piston is a popular aftermarket option for Polaris engines, known for its superior quality and performance. In this analysis, we will discuss the key advantages and disadvantages of investing in this piston.
Advantages:1. Enhanced Performance: Wossner pistons are forged from high-strength materials, which results in increased durability and reliability, ultimately enabling better engine performance. This piston's 70.37mm bore size can accommodate larger combustion chambers for improved air-fuel mixture and power output.
2. Improved Engine Longevity: Given Wossner's reputation for manufacturing pistons with extremely high compression ratios and precision diameter, it is an excellent choice for applications that require long-lasting components. The K7040DA-2 piston is also designed to minimize engine wear, leading to increased lifespan and reduced maintenance costs.
3. Engine Upgrades: Upgrading to a better quality piston like the Wossner K7040DA-2 is often the first step towards enhancing your Polaris engine, allowing for increased horsepower and torque, enabling more significant performance upgrades in the future.
Disadvantages:1. Initial Cost: The Wossner K7040DA-2 piston is generally more expensive than stock OEM pistons. However, a higher investment upfront can save money in the long term through prolonged engine life and reduced maintenance costs.
2. Installation: Installing a new piston is a labor-intensive process, which may require the expertise of a professional mechanic. Not only does the time and labor cost add to the overall investment, but misinstallation could lead to significant engine damage.
Conclusion:Considering the performance enhancements and durability that the Wossner K7040DA-2 piston offers, it is generally a worthwhile investment for Polaris enthusiasts. Although there's an initial cost and the installation process adds labor expenses, the benefits of improved engine performance, longevity, and the potential for further upgrades make it a valuable component for Polaris engine upgrades.
Recommendation:If you are a dedicated Polaris owner seeking maximum performance and engine longevity, the Wossner K7040DA-2 piston should be seriously considered as a valuable investment for your engine upgrade journey. It's recommended to consult a professional mechanic for installation to ensure proper assembly and to minimize the risk of potential damages.
Polaris 500 Classic 2002 -2003. 4-stroke Pistons are made using a double-bridged forging design. Polaris 500 Classic Touring 2002 -2003. All Pistons include piston, ring, wrist pin and locks.
Made in Germany. Wossner Piston Size A 70.37mm #K7040DA-2 Polaris: In-house designed and manufactured; all forgings are produced in Wossner company-owned forging operation. NOTE: Includes proper number of Pistons for your engine. Wossner Pistons are used by leading Supergrass, Aren across and MX GP teams.