Thunderbolt Anti-Theft Deadbolt Locks secure work vans, adventure vans, and box trucks.
Amazon.com: 2002 2003 2004 2005 2006 2007 Chevrolet Express Van OEM Set of 4 Door Lock Cylinders Keyed Alike 2 Keys 706591 X4 598007 : Automotive
Amazon.com: Power Door Lock Actuator w/Latch for 1996-2020 CHEVROLET EXPRESS GMC SAVANA Cargo Van Front Left, Repalce OEM 89044528, 72084E : Automotive
Cargolock - CL20200 - Cargo Lock Electronic Dead Bolt Model 20200 | U.S. Upfitters
Tested: 2003 Chevrolet Express AWD
Amazon.com: A-Premium Front Right Side Sliding Door Latch Lock Actuator Compatible with Chevy & GMC Vehicles - Express 1500/Savana 1500 1996-2014, Express 2500/3500/Savana 2500/3500 1996-2021, P30 1996-1999 : Automotive
Right Side Sliding Door Front Door Latch Assembly - Compatible with 1996 - 2023 Chevy Express 3500 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 - Walmart.com
How to Replace Front Left Door Latch Assembly 2003-2021 Chevy Express 3500 - YouTube
Right Side Sliding Door Front Door Latch Assembly - Compatible with 1996 - 2023 Chevy Express 2500 AWD 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 - Walmart.com
Genuine GM Rear Door Lock Latch Assembly for Chevrolet Express GMC Savana | eBay
Cargolock - Cargo Van Locks Electronic Dead Bolt | U.S. Upfitters
How to Replace Front Left Exterior Door Handle 2003-2021 Chevy Express 3500 - YouTube