{"product_id":"13030039730-cs400-air-filter","title":"CS400 Air Filter Tune-Up Kit - For Echo CS-400 CS370 CS370F CS400F Chainsaw Parts 13030039730 Primer Bulb Fuel Spark Plug","description":"\u003ch2\u003eCS400 Air Filter\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComplete maintenance kit includes an air filter, spark plug, primer bulb, and fuel filter.\u003c\/li\u003e\n\u003cli\u003eFilters airborne dust and debris to protect the engine and carburetor.\u003c\/li\u003e\n\u003cli\u003eMaintains proper air-to-fuel ratio for optimal engine performance.\u003c\/li\u003e\n\u003cli\u003eDirect replacement components engineered for specific model compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAir Filter: 13030039730\u003c\/li\u003e\n\u003cli\u003eSpark Plug: 90155, 90155Y\u003c\/li\u003e\n\u003cli\u003ePrimer Bulb: 90109\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003eEcho\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModels:\u003c\/strong\u003eCS-370, CS-370F, CS-400, CS-400F, CS-420ES, CS-3500, CS-4200, CS-4200ES, CS-5000\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEngine experiences reduced power, stalls, or is difficult to start.\u003c\/li\u003e\n\u003cli\u003eAir filter element is clogged, visibly dirty, or damaged.\u003c\/li\u003e\n\u003cli\u003ePrimer bulb is cracked, stiff, or fails to draw fuel.\u003c\/li\u003e\n\u003cli\u003eSpark plug is fouled, has a worn electrode, or is damaged.\u003c\/li\u003e\n\u003cli\u003eAs part of a scheduled tune-up or annual maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBefore servicing, disconnect the spark plug wire to prevent accidental engine starts.\u003c\/li\u003e\n\u003cli\u003eThoroughly clean the area around the filter cover before removal to prevent debris from entering the carburetor.\u003c\/li\u003e\n\u003cli\u003eConfirm the new filter is seated correctly in the housing before securing the cover.\u003c\/li\u003e\n\u003cli\u003eCheck fuel line connections for leaks after replacing the primer bulb or fuel filter.\u003c\/li\u003e\n\u003cli\u003eConsult the equipment's owner's manual for detailed replacement instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45369698549949,"sku":"AZ00249575","price":14.17,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00249575_1_ec69df48-f03a-48e1-8b7f-1280d32b34a6.jpg?v=1765275974","url":"https:\/\/bluestarspartstrend.com\/products\/13030039730-cs400-air-filter","provider":"BlueStars Parts","version":"1.0","type":"link"}