{"product_id":"bcbc-s853-engine-balance-shaft-sprocket-left","title":"BCBC S853 Engine Balance Shaft Sprocket - Left","description":"\u003ch2\u003eEngine Balance Shaft Sprocket Overview\u003c\/h2\u003e\u003cp\u003eThis Melling engine balance shaft sprocket, part number S853, is a standard replacement component for applications that use a 21-tooth balance shaft drive. It is built from high alloy steel to address wear that can cause timing drift in the balance shaft system.\u003c\/p\u003e\u003cp\u003eCompatible with a wide range of GM and Saab applications, including Chevrolet Malibu, Chevrolet Equinox, and Buick Regal fitments, this sprocket is intended for stock-style service replacement. The S853 is a practical choice when the original sprocket has worn smaller over time and the balance shaft needs to be brought back into proper time.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHigh alloy steel construction for wear resistance\u003c\/li\u003e\n\u003cli\u003eStandard replacement design for stock applications\u003c\/li\u003e\n\u003cli\u003e21-tooth sprocket configuration\u003c\/li\u003e\n\u003cli\u003e1.950 in. outside diameter\u003c\/li\u003e\n\u003cli\u003e0.475 in. maximum thickness\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe Melling S853 balance shaft sprocket is engineered as a direct service replacement for worn OEM-style sprockets in compatible engine balance shaft systems. As the original sprocket wears, its effective size changes and the balance shaft can move slightly out of time. This replacement sprocket restores the drive interface with a durable high alloy steel construction and dimensions that match the intended application.\u003c\/p\u003e\u003cp\u003eFitment includes 2010-2017 Chevrolet Equinox, left; 2011-2017 Buick Regal, left; and 2001-2011 Saab 9-3, left, along with additional Buick, Chevrolet, Pontiac, Saturn, and GMC applications. For buyers searching for a Chevrolet Malibu balance shaft sprocket, Buick Regal engine timing component, or Saab 9-3 balance shaft sprocket, S853 provides a stock-style replacement option.\u003c\/p\u003e\u003cp\u003eThis part cross-references Cloyes S853 and Standard Ignition S-853 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCorrecting balance shaft timing drift caused by sprocket wear\u003c\/li\u003e\n\u003cli\u003eReplacing a worn sprocket that has reduced in size over time\u003c\/li\u003e\n\u003cli\u003eRestoring proper balance shaft drive engagement\u003c\/li\u003e\n\u003cli\u003eAddressing noise or vibration concerns related to timing wear\u003c\/li\u003e\n\u003cli\u003eServicing stock engine balance shaft systems with a replacement sprocket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Quality\u003c\/h2\u003e\u003cp\u003eInstall this sprocket only on confirmed matching applications and verify tooth count, outside diameter, and thickness before assembly. Because fitment varies by engine family and model year, confirm the vehicle listing and existing component dimensions before installation. Part number S853 is a standard replacement component from Melling, a brand known for engine valvetrain and timing-related service parts.\u003c\/p\u003e","brand":"BCBC","offers":[{"title":"Default Title","offer_id":53721585156277,"sku":"BCBC-S853","price":24.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/ML_S853_Fro.jpg?v=1794124942","url":"https:\/\/www.partcatalog.com\/products\/bcbc-s853-engine-balance-shaft-sprocket-left","provider":"PartCatalog","version":"1.0","type":"link"}