Standard Ignition S-1550 Oxygen Sensor Connector

Oxygen Sensor Connector for GM Applications

Standard Ignition S-1550 is a 3-wire oxygen sensor connector built for repair work on select GM vehicles. It uses female blade terminals, a male connector body, and includes butt splices for a direct electrical repair at the harness connection.

Key Features

• Male oxygen sensor connector with female blade terminals
• 3-terminal, 3-wire configuration for the listed applications
• Includes butt splices for wire-to-wire repair
• Built with high-grade materials for strong conductivity and secure contact
• Standard Ignition S-1550 replacement connector for electrical harness repair

Detailed Description

This Standard Ignition oxygen sensor connector is made for repairing damaged, heat-affected, or corroded sensor wiring on vehicles such as the Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade. Standard Ignition focuses on pigtails and sockets for electrical repair jobs, using materials selected to maintain reliable conductivity and consistent terminal engagement. The S-1550 is a practical OE-style connector solution when the original oxygen sensor plug has failed at the harness side.

This part cross-references 1P3898 and EC1047 for the same application. It is also listed for a wide range of GM cars, trucks, and SUVs from 2007-2010, including Buick LaCrosse, Chevrolet Tahoe, GMC Yukon, and Pontiac Grand Prix applications.

What It Helps Repair

• Broken or brittle oxygen sensor connector housings
• Corroded or loose terminal connections
• Intermittent oxygen sensor signal faults caused by damaged wiring
• Heat damage near the exhaust-side harness connector
• Check engine light concerns related to poor sensor circuit continuity

Installation Notes and Tips

Match the connector style, terminal count, and wire count before installation. Verify the vehicle-side harness and oxygen sensor connector orientation, then splice the replacement connector using proper electrical repair practices. Confirm secure terminal seating and inspect the repaired circuit for continuity after installation. Fits 2007-2009 Buick LaCrosse, N/A; Fits 2008 Buick Lucerne, N/A; Fits 2008-2009 Cadillac Escalade, N/A; Fits 2008-2009 Cadillac Escalade ESV, N/A; Fits 2008-2009 Cadillac Escalade EXT, N/A; Fits 2007-2009 Cadillac SRX, N/A; Fits 2008-2009 Cadillac STS, N/A; Fits 2010 Cadillac Escalade, N/A; Fits 2010 Cadillac Escalade ESV, N/A; Fits 2010 Cadillac Escalade EXT, N/A; Fits 2007-2009 Chevrolet Equinox, N/A; Fits 2007-2009 Chevrolet Impala, N/A; Fits 2007-2009 Chevrolet Malibu, N/A; Fits 2007-2009 Chevrolet Avalanche, N/A; Fits 2008-2009 Chevrolet Avalanche, N/A; Fits 2008-2009 Chevrolet Suburban 1500, N/A; Fits 2008-2009 Chevrolet Suburban 2500, N/A; Fits 2008-2009 Chevrolet Tahoe, N/A; Fits 2010 Chevrolet Avalanche, N/A; Fits 2010 Chevrolet Tahoe, N/A; Fits 2008 Chevrolet Silverado 1500, N/A; Fits 2008 Chevrolet Silverado 2500 HD, N/A; Fits 2008 Chevrolet Silverado 3500 HD, N/A; Fits 2007 Chevrolet Express 1500, N/A; Fits 2007 Chevrolet Express 2500, N/A; Fits 2007 Chevrolet Express 3500, N/A; Fits 2007 Chevrolet Monte Carlo, N/A; Fits 2008-2009 GMC Yukon, N/A; Fits 2008-2009 GMC Yukon XL 1500, N/A; Fits 2008-2009 GMC Yukon XL 2500, N/A; Fits 2010 GMC Yukon, N/A; Fits 2010 GMC Yukon XL 1500, N/A; Fits 2010 GMC Yukon XL 2500, N/A; Fits 2008 GMC Sierra 1500, N/A; Fits 2008 GMC Sierra 2500 HD, N/A; Fits 2008 GMC Sierra 3500 HD, N/A; Fits 2007 GMC Savana 1500, N/A; Fits 2007 GMC Savana 2500, N/A; Fits 2007 GMC Savana 3500, N/A; Fits 2009 Hummer H3, N/A; Fits 2009 Hummer H3T, N/A; Fits 2007-2009 Pontiac Torrent, N/A; Fits 2007-2008 Pontiac Solstice, N/A; Fits 2007 Pontiac Grand Prix, N/A.

Quality Assurance

Standard Ignition applies decades of electrical repair development to its pigtails and sockets, with an emphasis on dependable terminal fit and conductivity for technician-level repairs.