Bosch 0445120042 Fuel Injector

Overview of Bosch Common Rail Injector (New) 0445120042

The Bosch Common Rail Injector (New) part number 0445120042 is designed for direct injection fuel systems in select Chevrolet, GMC, and Hummer vehicles. This premium replacement fuel injector ensures precise fuel delivery for models such as the Chevrolet Silverado 2500 HD and GMC Sierra 3500 Classic.

• Direct injection fuel injector type for efficient combustion
• Includes one fuel injector O-ring for proper sealing
• OE-style injector plug type for compatibility
• Premium replacement grade for reliable performance
• Packaged as one common rail injector per unit
• Compatible with multiple Chevrolet, GMC, and Hummer heavy-duty models
• 12-month warranty with unlimited miles and hours (non-commercial use)

About the Bosch Common Rail Injector (New) Product Line

The Common Rail Injector (New) line from Bosch focuses on delivering precise fuel metering for modern direct injection diesel engines. This product line is engineered to meet OEM specifications, providing consistent spray patterns and improved fuel atomization. The 0445120042 injector is part of this line, designed to maintain engine efficiency and emissions compliance in heavy-duty trucks and vans.

Detailed Product Description

This Bosch fuel injector 0445120042 is a direct injection type, specifically manufactured to fit heavy-duty Chevrolet, GMC, and Hummer vehicles including the Express 2500, Express 3500, H1, Savana 2500, Savana 3500, Sierra 2500 HD, Sierra 3500 Classic, Silverado 2500 HD Classic, and Silverado 3500 Classic. The injector features an OE-style plug for seamless electrical connection and includes one fuel injector O-ring to ensure a secure seal during installation. As a premium replacement part, it is designed to restore fuel delivery performance and maintain engine operation within factory parameters.

Common Issues Addressed by This Fuel Injector

• Rough engine idle or misfires in Chevrolet Silverado 2500 HD and GMC Sierra 3500 Classic
• Reduced fuel efficiency and increased emissions in Hummer H1 and Savana 3500
• Hard starting or engine hesitation under load
• Loss of power during acceleration in Express 2500 and Sierra 2500 HD
• Injector leaks or fuel delivery inconsistencies

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid injury
• Replace fuel injector O-rings included with the injector to prevent leaks
• Use proper torque specifications for injector mounting to avoid damage
• Verify electrical connections match the OE-style plug for compatibility
• Inspect fuel rail and injector ports for cleanliness before installation

Quality Assurance and Warranty

This Bosch Common Rail Injector (New) 0445120042 is backed by a 12-month warranty covering unlimited miles and hours for non-commercial use. Manufactured to meet OEM standards, this premium replacement injector undergoes rigorous testing to ensure durability and consistent fuel delivery performance in compatible Chevrolet, GMC, and Hummer models.