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The Wossner Forged Piston Kit Set (K8877DA-2) with a standard 80mm bore (actual size 79.93mm) is engineered for Polaris 800 series models, including the Sportsman and Ranger RZR800. Developed in Germany for high strength and thermal efficiency, the forged pistons feature an elliptical design that promotes even thrust load distribution, minimising stress and the risk of collapse under demanding conditions.
Features
Forged for superior strength and long-term reliability
Optimised heat transfer from combustion chamber to cylinder walls
Elliptical design distributes load evenly and prevents piston collapse
Manufactured in Germany
Specifications
Piston Size: 80mm (STD)
Actual Size: 79.93mm
Kit Type: Piston Set (2 pistons)
Kit Part Number: 56-W8803+00A.WO
Wossner Part Number: K8877DA-2
Ring Set: 800XTZ-3
Pin: WP042
Pin Locks: CW18
Piston Type: Forged
Piston to Bore Clearance: Built-in per Wossner specifications
Cross-Reference OEM Part Numbers
2202917
4961M08000
Vehicle Fitments
Polaris Sportsman 800 (2005–2012)
Polaris Ranger RZR800 (2007–2015)
Polaris Sportsman EFI800 (2005–2011)