{"product_id":"toro-121-4199-spark-plug","title":"Toro 121-4199 Spark Plug","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TORO 121-4199 is a replacement spark plug designed for use in small gasoline engines commonly found in outdoor power equipment. Spark plugs ignite the air-fuel mixture in the combustion chamber, making them a critical component for reliable engine starting and smooth operation. This plug is sold as a single unit and is a direct OEM-style replacement intended for technicians and service professionals performing routine engine maintenance or tune-ups.\u003c\/p\u003e\u003cp\u003eThis spark plug is suited for residential and light commercial outdoor power equipment applications. It is appropriate for scheduled maintenance intervals or as a replacement when an engine exhibits hard starting, misfiring, or rough idling. Service technicians working on TORO-branded equipment will find this plug a straightforward drop-in replacement during standard tune-up procedures.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOEM TORO replacement spark plug for accurate fitment\u003c\/li\u003e\n\u003cli\u003eSingle-unit quantity for individual engine service\u003c\/li\u003e\n\u003cli\u003eCompact dimensions support easy installation in tight engine bays\u003c\/li\u003e\n\u003cli\u003eCross-reference designation RL87YC noted on product\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement spark plug for TORO outdoor power equipment with compatible small gasoline engines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSpark plug replacement is typically performed by a small-engine technician or qualified service professional. Before servicing, disconnect the spark plug wire and allow the engine to cool completely. Use a proper spark plug socket and torque wrench to avoid overtightening or cross-threading during installation. Always verify the gap specification against the engine manufacturer's service manual before installing.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2.99 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 51 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: TORO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 121-4199\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TORO","offers":[{"title":"Default Title","offer_id":51971979510066,"sku":"121-4199","price":18.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c19f709b4627998c9639254220b0865f.jpg?v=1789959893","url":"https:\/\/voomisupply.com\/products\/toro-121-4199-spark-plug","provider":"Voomi Supply","version":"1.0","type":"link"}