{"product_id":"briggs-stratton-690339-key-drive-pulley","title":"Briggs Stratton 690339 Key-drive Pulley","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BRIGGS STRATTON 690339 is a key-drive pulley designed for use in Briggs Stratton small engine drive systems. This pulley transmits rotational force from the engine crankshaft to the belt drive assembly, serving as a critical power-transfer component. It is engineered to interface with a keyed shaft, securing the pulley's position and preventing slippage under load. Licensed small engine technicians and equipment service professionals typically handle installation and replacement of this component during routine drive system service or after belt and pulley wear is identified.\u003c\/p\u003e\u003cp\u003eThis key-drive pulley is suited for Briggs Stratton-powered lawn and garden equipment where belt-driven systems are used to power the cutting deck, transmission, or other driven accessories. It is a direct OEM-replacement part intended for equipment requiring the 690339 specification. Service typically arises when pulley wear, cracking, or keyway damage causes belt slippage or drive failure in mowers and similar outdoor power equipment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eKeyed shaft interface prevents rotational slippage under drive load\u003c\/li\u003e\n\u003cli\u003eOEM-style replacement maintains original drive geometry and belt alignment\u003c\/li\u003e\n\u003cli\u003eDesigned for Briggs Stratton belt and pulley drive assemblies in lawn and garden equipment\u003c\/li\u003e\n\u003cli\u003eDirect fit replacement simplifies service without modifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement key-drive pulley for Briggs Stratton-powered lawn and garden equipment requiring part number 690339.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified small engine technician. Disconnect the spark plug wire and ensure the engine is fully stopped before beginning any drive system service. The keyed shaft and pulley bore should be inspected for wear or damage before reassembly. Verify proper belt tension and alignment after installation per the equipment manufacturer's service guidelines.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type\u003c\/strong\u003e: Key-Drive Pulley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Lawn and Garden Belt Drive Systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BRIGGS STRATTON\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 690339\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BRIGGS \u0026 STRATTON","offers":[{"title":"Default Title","offer_id":51201127121202,"sku":"690339","price":14.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/voomisupply.com\/products\/briggs-stratton-690339-key-drive-pulley","provider":"Voomi Supply","version":"1.0","type":"link"}