{"product_id":"wrist-pin-bearing-for-kawasaki-astro-340-440-1977","title":"Wrist Pin Bearing for Kawasaki Astro 340 \u0026 440 1977","description":"\u003ch2\u003eWrist Pin Bearing for Kawasaki Astro 340 \u0026amp; 440\u003c\/h2\u003e\u003cp\u003eThis wrist pin bearing is a replacement connecting-rod bearing for the Kawasaki Astro 340 and Astro 440 snowmobiles of 1977, seating the piston pin inside the connecting rod so the piston can pivot smoothly under load.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis wrist pin bearing serves as the pivot between piston pin and connecting rod in the Kawasaki Astro 340 and 440 engines. It is built as a direct replacement for the original bearing, restoring the free rotation the piston needs at high rpm. Riders and mechanics rebuilding a 1977 Astro top end will find this wrist pin bearing a practical match for the job.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRoller bearing design keeps the piston pin rotating freely inside the connecting rod\u003c\/li\u003e\n\u003cli\u003eHardened steel rollers resist the shock loads of two-stroke combustion\u003c\/li\u003e\n\u003cli\u003eCaged construction holds rollers evenly spaced around the pin\u003c\/li\u003e\n\u003cli\u003eSized to match the Kawasaki Astro 340 and 440 piston pin and rod bore\u003c\/li\u003e\n\u003cli\u003eReplaces the worn bearing during a top-end rebuild\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Kawasaki Astro 340, 1977\u003c\/li\u003e\n\u003cli\u003efor Kawasaki Astro 440, 1977\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds on 1977 Astro 340 and 440 engines\u003c\/li\u003e\n\u003cli\u003eReplacing a noisy or seized wrist pin bearing\u003c\/li\u003e\n\u003cli\u003ePiston and ring service on vintage Kawasaki snowmobiles\u003c\/li\u003e\n\u003cli\u003eRefresh work before a season of trail riding\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWrist pin bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston pin to connecting rod\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMachine Fitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Kawasaki Astro 340 and 440, 1977\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 know my wrist pin bearing needs replacing? \u003cstrong\u003eA:\u003c\/strong\u003e A rattling top end, metal debris in the crankcase, or a pin that rocks loosely in the rod all point to a worn wrist pin bearing. Measure the pin and rod bore against spec before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Should I replace other parts at the same time? \u003cstrong\u003eA:\u003c\/strong\u003e Bearings, pin, and piston are best renewed together during a top-end rebuild. Inspect the rod bore and piston skirt while the cylinder is off.\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":51142921879638,"sku":"OO1C24126","price":23.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_6d043e06-284e-46d6-9dd7-4f805bcdd451.jpg?v=1794566847","url":"https:\/\/www.solidspare.com\/products\/wrist-pin-bearing-for-kawasaki-astro-340-440-1977","provider":"Solid Spare","version":"1.0","type":"link"}