Walker 595-1020 Engine Variable Valve Timing (VVT) Sprocket - Exhaust

Walker Products 595-1020 VVT Sprocket

Walker Products 595-1020 is an engine variable valve timing (VVT) sprocket built for specific GM applications that use exhaust-side VVT control. It is a direct-fit engine valve train component for select Buick, Chevrolet, GMC, Pontiac, and Saturn models across 2006-2016 coverage.

Walker Products has supplied automotive fuel system and engine management components since 1946, with manufacturing and engineering support focused on meeting or exceeding OEM standards. The Walker Products line includes engine sensors, ignition-related components, and gaskets, backed by ISO 9001/IATF16949 quality systems.

Key Features

• Engine variable valve timing (VVT) sprocket for exhaust applications
• Direct replacement for select GM 4-cylinder and related engine configurations
• Built to Walker Products manufacturing and engineering standards
• Cross-references Dorman OE Solutions 917-254 and Standard Ignition VVT524 for the same application
• Part number 595-1020 for catalog and fitment lookup

Fitment Coverage

• Fits 2011-2016 Buick LaCrosse, N/A
• Fits 2011-2016 Buick Regal, Exhaust
• Fits 2011-2015 Chevrolet Equinox, N/A
• Fits 2011-2015 GMC Terrain, N/A
• Fits 2013 Buick Verano, Exhaust
• Fits 2008-2013 Chevrolet Malibu, Exhaust
• Fits 2006-2011 Chevrolet HHR, Exhaust
• Fits 2009-2011 Chevrolet HHR, N/A
• Fits 2010 Buick LaCrosse, Exhaust
• Fits 2009-2010 Chevrolet Cobalt, N/A
• Fits 2007-2010 Chevrolet Cobalt, Exhaust
• Fits 2010 Chevrolet Equinox, Exhaust
• Fits 2010 GMC Terrain, Exhaust
• Fits 2006-2010 Pontiac G6, Exhaust
• Fits 2007-2010 Saturn Sky, Exhaust
• Fits 2007-2010 Saturn Vue, Exhaust
• Fits 2009 Pontiac G5, N/A
• Fits 2006-2009 Pontiac Solstice, Exhaust
• Fits 2007-2009 Saturn Aura, Exhaust
• Fits 2007-2008 Pontiac G5, Exhaust
• Fits 2006-2007 Saturn Ion, Exhaust

What It Helps Address

• Exhaust cam timing faults related to a worn VVT sprocket
• Check engine lights tied to variable valve timing performance
• Rough idle or drivability issues caused by timing control problems
• Loss of engine efficiency from inconsistent cam phasing
• Noise or mechanical wear at the timing drive interface

Installation Notes

Verify engine code, model year, and exhaust-side application before ordering. This part is listed for both N/A and Exhaust positions depending on vehicle configuration, so match the exact fitment row for your Buick LaCrosse, Chevrolet Malibu, Chevrolet Cobalt, Chevrolet Equinox, GMC Terrain, Pontiac G6, Saturn Vue, or related application. Follow factory service procedures for timing component replacement and confirm cam timing after installation.

Quality Assurance

Walker Products manufactures to meet or exceed OEM standards and specifications, supported by in-house product management, engineering, and technical documentation. The company is ISO 9001/IATF16949 certified, reflecting controlled production and quality processes for engine management components.