Walker 550-2103 Fuel Injector

Walker 550-2103 Fuel Injector Overview

Walker Products fuel injector 550-2103 is a direct-fit fuel system component for select GM vehicles. It is built to meet or exceed OEM standards and specifications, with engineering and product support backed by Walker Products’ long-running fuel system expertise.

Compatible With 2007-2009 Cadillac CTS, 2007-2009 Cadillac SRX, 2007 Cadillac STS, 2008-2012 Chevrolet Malibu, 2008-2009 Chevrolet Equinox, 2007-2009 Pontiac G6, 2008-2009 Pontiac G8, 2008-2009 Pontiac Torrent, and 2007-2009 Saturn Aura.

Key Features

• Fuel injector for air and fuel delivery service
• OE-style replacement from Walker Products
• Built to meet or exceed OEM standards and specifications
• Supported by Walker Products engineering and technical resources
• Interchanges with Bosch 62656 and Standard Ignition FJ990 for the same application
• Part number 550-2103 for accurate ordering and fitment lookup

Product Details

Walker Products has supplied fuel system components since 1946 and manufactures engine management parts for the automotive aftermarket. The Walker Products line includes fuel injectors, repair kits, oxygen sensors, throttle position sensors, cam and crankshaft sensors, spark plug wires, and gaskets. As an ISO 9001/IATF16949 certified company, Walker focuses on controlled production, application accuracy, and technical support for service professionals and vehicle owners.

This fuel injector is listed for 2007-2009 Cadillac CTS, 2007-2009 Cadillac SRX, 2007 Cadillac STS, 2008-2012 Chevrolet Malibu, 2008-2009 Chevrolet Equinox, 2007-2009 Pontiac G6, 2008-2009 Pontiac G8, 2008-2009 Pontiac Torrent, and 2007-2009 Saturn Aura. Use part number 550-2103 to confirm the correct injector for your application before service.

Common Issues This Part May Address

• Hard starting caused by a worn or restricted injector
• Rough idle from inconsistent fuel delivery
• Misfire conditions related to injector performance
• Poor throttle response from uneven fuel atomization
• Fuel trim concerns tied to injector flow issues

Installation Notes and Tips

Verify the vehicle application by year, make, and model before installation. Inspect the fuel rail, seals, and related fuel system components during service, and follow the vehicle manufacturer’s fuel system procedures for removal and replacement. Confirm connector style and injector specification against the original part number 550-2103 application.

Quality Assurance

Walker Products manufactures to meet or exceed OEM standards and specifications and supports production with in-house engineering, product management, and technical documentation. The company is ISO 9001/IATF16949 certified.