Standard Ignition S-1666 Power Seat Harness Connector

Power Seat Harness Connector for GM Applications

Standard Ignition S-1666 is a female power seat harness connector built for electrical repair work where the original seat connector has failed, melted, or lost terminal contact. It uses high-grade materials to support strong conductivity and reliable blade-terminal engagement in the vehicle harness.

Compatible With 2005-2009 Chevrolet Cobalt, Equinox, Suburban, Tahoe, Trailblazer, Silverado 1500, Silverado 2500 HD, Silverado 3500 HD, 2005-2008 Pontiac G5, Solstice, Torrent, Pursuit, 2007-2008 Saturn Sky, and 2007 Buick Rainier applications that use the matching 4-blade male terminal layout. Standard Ignition S-1666 is also a direct-fit electrical repair option for select GMC Sierra and Envoy models listed below.

Key Features

• Female connector housing with 4 blade terminals
• 4-wire design for power seat harness repair
• Includes butt splices for wire-to-wire connection work
• Built for consistent terminal fit and conductivity
• Direct replacement style for common GM seat connector failures

Detailed Description

Standard Ignition S-1666 is a power seat harness connector used to restore the electrical connection between the seat harness and the vehicle wiring on select Chevrolet, GMC, Pontiac, Saturn, and Buick models. The connector is designed with a female housing, male blade terminals, and a 4-wire layout to match the original connection style on supported vehicles. This part cross-references OE-style numbers such as 88953361 and EC1163 for the same application. It is a practical repair solution for 2007 Chevrolet Trailblazer, 2007 GMC Envoy, and 2009 Chevrolet Silverado 1500 applications where the original connector has deteriorated.

Common Repair Uses

• Broken or heat-damaged power seat connector
• Intermittent seat power due to poor terminal contact
• Corroded or loose harness connection at the seat
• Damaged wiring at the seat connector pigtail
• Failed original connector on GM seat electrical circuits

Installation Notes and Tips

Match the connector style, terminal count, and wire layout before installation. Verify the vehicle harness uses the black and gray 4-terminal male configuration where noted in the fitment data. Use proper splice and crimp practices when joining the harness, and confirm terminal seating and polarity before reconnecting the seat circuit.

Quality Assurance

Standard Ignition builds its pigtails and sockets with materials selected for dependable conductivity and secure electrical contact. The brand’s connector line is developed from long-term technician-focused research and development to address common failure points in original equipment seat and body electrical connectors.

• Fits 2005-2008 Chevrolet Cobalt, N/A
• Fits 2005-2008 Chevrolet Equinox, N/A
• Fits 2005-2006 Pontiac Pursuit, N/A
• Fits 2007 Chevrolet Cobalt, N/A
• Fits 2007 Chevrolet Suburban 1500, N/A
• Fits 2007 Chevrolet Suburban 2500, N/A
• Fits 2007 Chevrolet Tahoe, N/A
• Fits 2007 Chevrolet Trailblazer, N/A; Black and Gray; 4 Term. Male
• Fits 2007 GMC Envoy, N/A; Black and Gray; 4 Term. Male
• Fits 2007 GMC Sierra 1500, N/A; Black and Gray; 4 Term. Male
• Fits 2007 GMC Sierra 1500 HD Classic, N/A; Black and Gray; 4 Term. Male
• Fits 2007 GMC Sierra 2500 HD, N/A; Black and Gray; 4 Term. Male
• Fits 2007 GMC Sierra 3500 Classic, N/A; Black and Gray; 4 Term. Male
• Fits 2007 GMC Sierra 3500 HD, N/A; Black and Gray; 4 Term. Male
• Fits 2007 Pontiac G5, N/A
• Fits 2007-2008 Pontiac G5, N/A; Black and Gray; 4 Term. Male
• Fits 2007-2008 Pontiac Solstice, N/A; Black and Gray; 4 Term. Male
• Fits 2007-2008 Pontiac Torrent, N/A; Black and Gray; 4 Term. Male
• Fits 2007-2008 Saturn Sky, N/A; Black and Gray; 4 Term. Male
• Fits 2007 Buick Rainier, N/A; Black and Gray; 4 Term. Male
• Fits 2009 Chevrolet Silverado 1500, N/A
• Fits 2009 Chevrolet Silverado 2500 HD, N/A
• Fits 2009 Chevrolet Silverado 3500 HD, N/A
• Fits 2009 GMC Sierra 1500, N/A
• Fits 2009 GMC Sierra 2500 HD, N/A
• Fits 2009 GMC Sierra 3500 HD, N/A