Apex AES318 Engine Camshaft Retainer Plate

Apex AES318 Camshaft Retainer Plate

The Apex AES318 engine camshaft retainer plate is a direct-fit valve train component for a wide range of GM and related applications. It is used on engines found in Cadillac Escalade, Chevrolet Silverado, GMC Sierra, and other listed models, with fitment covering 1997-2020 vehicles.

• Engine camshaft retainer plate for valve train service
• Compatible with listed Cadillac, Chevrolet, GMC, Buick, Pontiac, Saab, Hummer, Isuzu, and GMC truck applications
• Fits applications noted with mounting bolts
• Part number: AES318
• Broad coverage across LS-based and related GM platforms

Vehicle Fitment

• Fits 2002-2020 Cadillac Escalade, N/A
• Fits 2003-2020 Cadillac Escalade ESV, N/A
• Fits 2010-2020 Chevrolet Camaro, N/A
• Fits 1998-2002 Chevrolet Camaro, N/A
• Fits 2003-2020 Chevrolet Express 2500, N/A
• Fits 2004-2020 Chevrolet Express 3500, N/A
• Fits 2000-2020 Chevrolet Tahoe, N/A
• Fits 2003-2020 GMC Savana 2500, N/A
• Fits 2003-2020 GMC Savana 3500, N/A
• Fits 2000-2020 GMC Yukon, N/A
• Fits 2015-2020 GMC Yukon XL, N/A
• Fits 2016-2019 Cadillac CTS, N/A
• Fits 2004-2007 Cadillac CTS, N/A
• Fits 1997-2019 Chevrolet Corvette, N/A
• Fits 2019 Chevrolet Silverado 1500 LD, N/A
• Fits 2001-2019 Chevrolet Silverado 2500 HD, N/A
• Fits 2007-2019 Chevrolet Silverado 3500 HD, N/A
• Fits 2016-2019 Chevrolet Suburban 3500 HD, N/A
• Fits 2019 GMC Sierra 1500 Limited, N/A
• Fits 2001-2019 GMC Sierra 2500 HD, N/A
• Fits 2007-2019 GMC Sierra 3500 HD, N/A
• Fits 1999-2018 Chevrolet Silverado 1500, N/A
• Fits 1999-2018 GMC Sierra 1500, N/A
• Fits 2011-2017 Chevrolet Caprice, N/A
• Fits 2014-2017 Chevrolet SS, N/A
• Fits 2003-2014 Chevrolet Express 1500, N/A
• Fits 2000-2014 Chevrolet Suburban 1500, N/A
• Fits 2003-2014 GMC Savana 1500, N/A
• Fits 2000-2014 GMC Yukon XL 1500, N/A
• Fits 2002-2013 Cadillac Escalade EXT, N/A
• Fits 2007-2013 Chevrolet Avalanche, N/A
• Fits 2000-2013 Chevrolet Suburban 2500, N/A
• Fits 2000-2013 GMC Yukon XL 2500, N/A
• Fits 2009-2012 Chevrolet Colorado, N/A
• Fits 2009-2012 GMC Canyon, N/A
• Fits 2008-2010 Hummer H3, N/A
• Fits 2008-2009 Buick LaCrosse, N/A
• Fits 2006-2009 Chevrolet Impala, N/A
• Fits 2006-2009 Chevrolet Trailblazer, N/A
• Fits 2005-2009 GMC Envoy, N/A
• Fits 2003-2009 Hummer H2, N/A
• Fits 2009 Hummer H3T, N/A
• Fits 2008-2009 Pontiac G8, N/A
• Fits 2005-2009 Saab 9-7x, N/A
• Fits 2005-2008 Pontiac Grand Prix, N/A
• Fits 2004-2007 Buick Rainier, N/A
• Fits 2006-2007 Chevrolet Monte Carlo, N/A
• Fits 2007 Chevrolet Silverado 1500 Classic, N/A
• Fits 2007 Chevrolet Silverado 1500 HD Classic, N/A
• Fits 2007 Chevrolet Silverado 2500 HD Classic, N/A
• Fits 2007 Chevrolet Silverado 3500 Classic, N/A
• Fits 2007 GMC Sierra 1500 Classic, N/A
• Fits 2007 GMC Sierra 1500 HD Classic, N/A
• Fits 2007 GMC Sierra 2500 HD Classic, N/A
• Fits 2007 GMC Sierra 3500 Classic, N/A
• Fits 2002-2006 Chevrolet Avalanche 1500, N/A
• Fits 2005-2006 Chevrolet Silverado 1500 HD, N/A
• Fits 2001-2003 Chevrolet Silverado 1500 HD, N/A
• Fits 2001-2006 Chevrolet Silverado 3500, N/A
• Fits 2003-2006 Chevrolet SSR, N/A
• Fits 2003-2006 Chevrolet Trailblazer EXT, N/A
• Fits 2003-2006 GMC Envoy XL, N/A
• Fits 2005-2006 GMC Sierra 1500 HD, N/A
• Fits 2001-2003 GMC Sierra 1500 HD, N/A
• Fits 2001-2006 GMC Sierra 3500, N/A
• Fits 2003-2006 Isuzu Ascender, N/A
• Fits 2004-2006 Pontiac GTO, N/A
• Fits 2004-2005 GMC Envoy XUV, N/A
• Fits 1999-2004 Chevrolet Silverado 2500, N/A
• Fits 1999-2004 GMC Sierra 2500, N/A
• Fits 1998-2001 Pontiac Firebird, N/A

Common Service Uses

• Replacing a worn or damaged camshaft retainer plate during engine repair
• Addressing valve train service on GM truck and performance applications
• Restoring proper camshaft retention in LS-family engine builds
• Supporting rebuilds on Chevrolet Silverado 1500 and GMC Sierra 1500 platforms
• Servicing Cadillac Escalade, Chevrolet Corvette, and related V8 applications

Installation Notes

Confirm engine code and application before installation, since this part is listed across many model years and platforms. Match the retainer plate to the correct engine family and follow factory service procedures for torque sequence and sealing surfaces. This part cross-references OE-style applications for the same use case.

Quality Assurance

Apex identifies AES318 as an engine camshaft retainer plate for listed vehicle applications. Verify fitment against the vehicle’s year, make, model, and engine configuration before ordering.