{"product_id":"husqvarna-545004301-crankshaft-seal-oem","title":"Husqvarna 545004301 Crankshaft Seal Oem","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HUSQVARNA 545004301 is a genuine OEM crankshaft seal designed to maintain a positive oil-tight barrier at the crankshaft journal of small displacement two-stroke and four-stroke engines found in Husqvarna outdoor power equipment. The seal prevents oil migration past the crankshaft, protecting the ignition system, carburetor side, and surrounding components from contamination. Installation of the correct OEM seal is critical to maintaining proper crankcase pressure in two-stroke applications, which directly affects fuel-air mixture and combustion efficiency. This part is sourced directly from the manufacturer and meets original engineering tolerances.\u003c\/p\u003e\u003cp\u003eThis crankshaft seal is a service part suited for equipment maintenance and engine rebuild scenarios. It is commonly replaced during crankshaft service, PTO-side or flywheel-side seal replacement, or whenever oil leakage at the crankshaft is detected. Typical applications include Husqvarna chainsaws, trimmers, and similar handheld power equipment where this seal is specified by part number 545004301. Technicians performing engine teardowns should replace both crankshaft seals as a set regardless of visible wear on the second seal.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGenuine OEM part manufactured to original engineering tolerances\u003c\/li\u003e\n\u003cli\u003eSeals the crankshaft journal to prevent oil leakage and crankcase pressure loss\u003c\/li\u003e\n\u003cli\u003eProtects ignition and carburetor components from oil contamination\u003c\/li\u003e\n\u003cli\u003eDirect fit replacement — no modification required during installation\u003c\/li\u003e\n\u003cli\u003eAppropriate for use in two-stroke crankcase-pressure-sensitive engine applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a genuine OEM-specified crankshaft seal replacement for Husqvarna power equipment where part number 545004301 is called out in the manufacturer service documentation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCrankshaft seal replacement is typically performed by a qualified small-engine technician and requires partial or full engine disassembly depending on seal location. Disable the ignition and drain all fluids before beginning any crankshaft service. Use a proper seal driver or appropriately sized socket to press the seal in squarely without distorting the lip — never drive a seal in with a hammer directly on the seal face. Inspect the crankshaft journal surface for scoring before installation, as a damaged journal will compromise the new seal.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type\u003c\/strong\u003e: Crankshaft Seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Status\u003c\/strong\u003e: Genuine OEM Replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HUSQVARNA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 545004301\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HUSQVARNA","offers":[{"title":"Default Title","offer_id":51199204622642,"sku":"545004301","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307144920.png?v=1779677491","url":"https:\/\/voomisupply.com\/products\/husqvarna-545004301-crankshaft-seal-oem","provider":"Voomi Supply","version":"1.0","type":"link"}