Bosch 62644 Fuel Injector

Bosch Fuel Injector 62644 Overview

Bosch Fuel Injector 62644 is a gasoline MPFI port fuel injector built for direct replacement in select Cadillac applications. It uses a USCAR female connector with a 2-terminal blade interface and includes the injector seals needed for the service point.

For drivers searching for a Bosch 62644 fuel injector for 2006-2009 Cadillac STS or 2006-2009 Cadillac XLR, this part matches the listed OE-style application and connector configuration.

Key Features

• Fuel type: gas / gasoline
• MPFI (port or multi-point fuel injection) design
• USCAR connector shape with female connector gender
• 2-terminal blade connection
• Gasket or seal included
• 2 O-rings included for the injector seal interface
• Bolt-in attachment method
• Interchange reference: 12598842

Product Details

Bosch 62644 is part of Bosch’s Fuel Injector line, backed by the company’s long history in gasoline fuel injection systems and broad coverage across domestic, European, and Asian vehicle platforms. This injector is specified for gasoline MPFI service and is listed for 2006-2009 Cadillac STS and 2006-2009 Cadillac XLR applications. If you are replacing a worn or inconsistent injector on a Cadillac STS or Cadillac XLR, Bosch 62644 provides the correct connector style, terminal layout, and seal configuration for the listed fitment.

This part cross-references 12598842 for the same application.

Common Reasons for Replacement

• Hard starting caused by poor fuel delivery at one cylinder
• Rough idle from uneven injector spray or flow
• Misfire concerns tied to a failing gasoline injector
• Fuel trim issues related to inconsistent injector performance
• Fuel odor or leakage at the injector seal area

Installation Notes

Verify connector shape, terminal count, and seal condition before installation. Replace the injector only on the listed Cadillac STS and Cadillac XLR applications, and confirm the fuel rail and intake sealing surfaces are clean before bolting the injector into place. Because the injector uses press-on and bolt-in attachment methods, proper seating of the O-rings and gasket is important to prevent leaks.

Quality Assurance

Bosch is an OE leader in fuel system technology with more than 45 years of gasoline fuel injection experience. Bosch 62644 is built to meet the requirements of the listed Cadillac applications and follows Bosch’s established fuel injector program standards.