{"product_id":"2-spi-040-over-bore-piston-kits-for-polaris-500-rmk-fits-1997-1998-1999-73mm","title":"2 SPI .040 Over Bore Piston Kits for Polaris 500 RMK fits 1997 1998 1999 73mm","description":"\u003ch2\u003e2 SPI .040 Over Bore Piston Kits for Polaris 500 RMK\u003c\/h2\u003e\u003cp\u003eThis set includes two SPI .040 over bore piston kits designed to fit Polaris 500 RMK models from 1997 to 1999, featuring a 73mm bore size for reliable engine performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThese SPI .040 over bore piston kits are aftermarket replacements for Polaris 500 RMK snowmobiles, delivering a 73mm bore for increased displacement and restored power. Each kit provides two pistons with rings and wrist pins, making them suitable for rebuilding engines in these vintage models.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCast aluminum pistons with .040 oversize for improved engine output\u003c\/li\u003e\n\u003cli\u003eAccurate ring grooves for optimal compression sealing\u003c\/li\u003e\n\u003cli\u003eComplete kit includes rings and wrist pins for hassle-free installation\u003c\/li\u003e\n\u003cli\u003eEngineered for direct fitment to Polaris 500 RMK cylinders\u003c\/li\u003e\n\u003cli\u003eManufactured to meet OEM tolerances for durability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris 500 RMK (1997)\u003c\/li\u003e\n\u003cli\u003efor Polaris 500 RMK (1998)\u003c\/li\u003e\n\u003cli\u003efor Polaris 500 RMK (1999)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding engines on mountain snowmobiles for trail and powder riding\u003c\/li\u003e\n\u003cli\u003eRestoring performance in older Polaris RMK models\u003c\/li\u003e\n\u003cli\u003ePerforming top-end overhauls during winter preparation\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 Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e73mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverbore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 Kits (pistons, rings, pins)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Years\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1997-1999\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 Do these pistons require engine disassembly to install? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, these are top-end replacement pistons that require cylinder head and cylinder removal, followed by boring to 73mm for proper fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can these be used with the original cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e Only if the cylinder has been bored to 73mm; these .040 over bore pistons are not compatible with stock 72.5mm cylinders.\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":44949839577174,"sku":"SZ1F15664","price":318.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_2215c161-d927-4bc9-8c4e-17c8c8efe675.jpg?v=1781400057","url":"https:\/\/www.solidspare.com\/products\/2-spi-040-over-bore-piston-kits-for-polaris-500-rmk-fits-1997-1998-1999-73mm","provider":"Solid Spare","version":"1.0","type":"link"}