Standard Ignition S-921 Parking Light Bulb Socket - Rear

Parking Light Bulb Socket for GM Applications

Standard Ignition S-921 is a parking light bulb socket built for direct electrical repair on select GM vehicles. It uses a female connector design with blade terminals and an 8-inch harness to restore a secure bulb connection where the original socket has failed.

Compatible With 2000-2006 Chevrolet Silverado, GMC Sierra, Cadillac Escalade, Tahoe, Suburban, Yukon XL, Pontiac Bonneville, and Oldsmobile Aurora applications listed below.

Key Features

• Parking light bulb socket for electrical repair and replacement
• Female connector and female blade terminals for the listed applications
• 8-inch harness length for serviceable routing
• 2-wire design for the specified vehicle fitments
• Built with high-grade materials to support strong conductivity and consistent connections
• Standard Ignition S-921 replacement socket for select GM lighting repairs

Detailed Description

Standard Ignition S-921 is a parking light bulb socket designed for vehicles that need a dependable replacement for a damaged, heat-affected, or corroded socket. The construction focuses on conductivity and connection integrity, helping restore proper electrical contact at the parking light circuit. This part cross-references Champion Spark Plug 845 for the same application. Standard Ignition S-921 is listed for a wide range of Chevrolet Silverado, GMC Sierra, Cadillac Escalade, and related GM models, including rear-position applications and select angled-socket configurations.

Fits 2006 Chevrolet Silverado 1500, N/A; Fits 2006 Chevrolet Silverado 1500 HD, N/A; Fits 2006 Chevrolet Silverado 2500 HD, N/A; Fits 2006 Chevrolet Silverado 3500, N/A; Fits 2002-2005 Cadillac Escalade, N/A; Fits 2003-2005 Cadillac Escalade ESV, N/A; Fits 2002-2005 Cadillac Escalade EXT, N/A; Fits 2003-2005 Chevrolet Silverado 1500, Rear; Fits 2005 Chevrolet Silverado 1500 HD, Rear; Fits 2003 Chevrolet Silverado 1500 HD, Rear; Fits 2005 Chevrolet Silverado 2500, N/A; Fits 2003-2005 Chevrolet Silverado 2500 HD, Rear; Fits 2003-2005 Chevrolet Silverado 3500, Rear; Fits 2002-2005 Chevrolet Suburban 1500, Rear; Fits 2002-2005 Chevrolet Suburban 2500, Rear; Fits 2002-2005 Chevrolet Tahoe, Rear; Fits 2002-2005 GMC Sierra 1500, N/A; Fits 2005 GMC Sierra 1500 HD, N/A; Fits 2002-2003 GMC Sierra 1500 HD, N/A; Fits 2002-2005 GMC Sierra 2500 HD, N/A; Fits 2002-2005 GMC Sierra 3500, N/A; Fits 2001-2005 GMC Yukon XL 1500, N/A; Fits 2001-2005 GMC Yukon XL 2500, N/A; Fits 2000-2005 Pontiac Bonneville, Rear; Fits 2003-2004 Chevrolet Silverado 2500, Rear; Fits 2002-2004 GMC Sierra 2500, N/A; Fits 2003 Oldsmobile Aurora, N/A; Fits 2001-2003 Oldsmobile Aurora, Rear; Fits 2001-2002 Chevrolet Silverado 1500, N/A, w/ Angled Socket; 2 Wires; Fits 2002 Chevrolet Silverado 1500 HD, N/A, w/ Angled Socket; 2 Wires; Fits 2001-2002 Chevrolet Silverado 2500, N/A, w/ Angled Socket; 2 Wires; Fits 2001-2002 Chevrolet Silverado 2500 HD, N/A, w/ Angled Socket; 2 Wires; Fits 2001-2002 Chevrolet Silverado 3500, N/A, w/ Angled Socket; 2 Wires.

What It Helps Fix

• Intermittent or non-working parking light operation
• Heat-damaged or brittle socket housings
• Corrosion at the bulb connection
• Loose terminal contact in the lighting circuit
• Repair needs on GM Silverado, Sierra, Escalade, Tahoe, Suburban, Yukon XL, Bonneville, and Aurora lighting systems

Installation Notes and Tips

Verify the connector style, terminal layout, and harness routing before installation. Match the vehicle listing carefully, especially for applications noted with an angled socket or 2-wire configuration. Inspect the bulb, terminals, and surrounding wiring for heat damage or corrosion before connecting the new socket.

Quality Assurance

Standard Ignition builds its pigtails and sockets with high-grade materials and application-focused engineering to support reliable electrical contact. The brand’s long-running development in electrical repair parts is aimed at addressing common failure points found in original equipment sockets.