BCBC S849 Engine Timing Crankshaft Sprocket - Outer

Engine Timing Sprocket Overview

The Melling S849 engine timing crankshaft sprocket is a standard replacement component for timing system service and engine rebuilds. Built from high alloy steel, it is made to the required specifications for applications that call for a 23-tooth sprocket with a 2-keyway design.

Compatible with a wide range of GM and Saab applications, including Chevrolet Malibu, Chevrolet Cobalt, and Saturn Vue timing system service, this sprocket supports precise chain engagement in stock-style rebuilds. The S849 part number is also referenced in interchange listings for related applications.

• High alloy steel construction for timing system durability
• 23-tooth design for specified crankshaft timing applications
• 2-keyway configuration for applications that require indexed installation
• Standard replacement grade for engine rebuild work

Detailed Application Notes

Fits 2011-2017 Buick Regal, outer; 2012-2017 Buick Verano, outer; 2010-2017 Chevrolet Equinox, outer; 2010-2017 GMC Terrain, outer; 2010-2016 Buick LaCrosse, outer; 2010-2015 Chevrolet Captiva Sport, outer; 2014 Chevrolet Impala, outer; 2004-2014 Chevrolet Malibu, outer; 2012-2014 Chevrolet Orlando, outer; 2006-2011 Chevrolet HHR, outer; 2001-2011 Saab 9-3, outer; 2010-2011 Saab 9-3X, outer; 2010 Buick Allure, outer; 2005-2010 Chevrolet Cobalt, outer; 2007-2010 Pontiac G5, outer; 2006-2010 Pontiac G6, outer; 2007-2010 Saturn Sky, outer; 2002-2010 Saturn Vue, outer; 2006-2009 Pontiac Solstice, outer; 2007-2009 Saturn Aura, outer; 2003-2007 Saturn Ion, outer; 2005-2006 Pontiac Pursuit, outer; 2002-2005 Chevrolet Cavalier, outer; 2004-2005 Chevrolet Classic, outer; 2002-2005 Pontiac Grand Am, outer; 2002-2005 Pontiac Sunfire, outer; 2002-2004 Oldsmobile Alero, outer; 2004 Saturn L300, outer; 2001-2003 Saturn L200, outer; 2001-2003 Saturn LW200, outer; 2001-2002 Chevrolet Astra, outer; 2001-2002 Saturn L100, outer; 2000 Saturn LS, outer; 2000 Saturn LS1, outer; 2000 Saturn LW1, outer.

What It Helps Address

• Worn or damaged timing sprocket teeth
• Incorrect chain engagement in a timing service
• Noise or irregular operation from timing component wear
• Engine rebuilds that require a replacement crankshaft sprocket
• Restoration of stock-style timing system geometry

Installation Notes and Tips

Verify tooth count, keyway count, inside diameter, and thickness before installation. This sprocket is listed as a standard replacement part, so confirm the engine application and timing set configuration against the vehicle service information before assembly. The S849 part number should be matched to the required timing system specification during rebuild work.

Quality Assurance

Melling timing gears and sprockets are manufactured to required specifications using current production processes and quality materials. The S849 is part of Melling's timing gear and sprocket program for engine rebuild applications.