{"product_id":"namura-standard-bore-piston-kit-for-polaris-300-xplorer-xpress-big-boss-74-5mm","title":"Namura Standard Bore Piston Kit for Polaris 300 Xplorer, Xpress, Big Boss 74.5mm","description":"\u003ch2\u003eStandard Bore Piston Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis standard bore piston kit for Polaris 300 Xplorer, Xpress, and Big Boss models features a 74.5mm diameter and restores engine compression for reliable power.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis standard bore piston kit for Polaris ATVs provides a direct replacement for worn pistons in 300 series engines. It is designed for models such as Xplorer, Xpress, and Big Boss, using a 74.5mm bore diameter. The kit includes everything needed for a rebuild, ensuring your Polaris engine runs smoothly.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-cast aluminum alloy construction for durability\u003c\/li\u003e\n\u003cli\u003eIncludes piston rings and wrist pin for complete installation\u003c\/li\u003e\n\u003cli\u003e74.5mm standard bore size for Polaris 300 engines\u003c\/li\u003e\n\u003cli\u003eEngineered to meet OEM specifications for fit and performance\u003c\/li\u003e\n\u003cli\u003eReduces engine wear and improves compression efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris 300 Xplorer\u003c\/li\u003e\n\u003cli\u003efor Polaris 300 Xpress\u003c\/li\u003e\n\u003cli\u003efor Polaris Big Boss\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRestores power and reliability in trail riding ATVs\u003c\/li\u003e\n\u003cli\u003eIdeal for rebuilding engines in utility vehicles used on farms and ranches\u003c\/li\u003e\n\u003cli\u003eCompatible with recreational and work-oriented Polaris models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e74.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, Rings, Wrist Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Brand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Displacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How do I install this piston kit? \u003cstrong\u003eA:\u003c\/strong\u003e Installation requires basic engine disassembly and proper ring orientation; refer to a service manual for torque specifications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit include a gasket set? \u003cstrong\u003eA:\u003c\/strong\u003e No, this kit includes only the piston, rings, and wrist pin; gaskets must be purchased separately.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44890798817366,"sku":"SZ1F13229","price":164.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_f12a7666-181d-4404-998e-4ecc616a3197.jpg?v=1781143846","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-piston-kit-for-polaris-300-xplorer-xpress-big-boss-74-5mm","provider":"Solid Spare","version":"1.0","type":"link"}