0445120027 LLY Diesel Fuel Injector for Chevy GMC 6.6L Sierra 2500 HD 3500

Product Overview

This aftermarket replacement diesel fuel injector is intended for the listed Chevy and GMC 6.6L applications, including Sierra 2500 HD and 3500 models, and cross-references part number 0445120027. A diesel fuel injector delivers fuel into the combustion chamber in a metered spray so the engine can run as designed. The LLY engine designation in the title identifies the 6.6L diesel application this injector is listed for.

Key Features & Performance

• Delivers metered fuel into the combustion chamber, the normal role of a diesel fuel injector
• Supports the fuel delivery side of the engine's combustion process
• Cross-references part number 0445120027 for comparison with the original unit
• Listed for the Chevy and GMC 6.6L LLY applications named in the title

Fitment & Compatibility

• for Chevy 6.6L LLY applications
• for GMC 6.6L LLY applications
• for GMC Sierra 2500 HD applications
• for GMC Sierra 3500 applications

Common Uses

• Replacing a worn, leaking, or malfunctioning diesel fuel injector
• Routine maintenance of the engine fuel system
• Restoring normal fuel delivery after the original injector has failed

Technical Specifications

• Product Type: Diesel Fuel Injector
• Part Number: 0445120027
• Engine Application(s): 6.6L LLY diesel
• Vehicle Application(s): Chevy and GMC Sierra 2500 HD, Sierra 3500

Frequently Asked Questions

Q: What does a diesel fuel injector do? A: It delivers fuel into the combustion chamber in a metered spray so the engine can run as designed.

Q: How should fitment be verified? A: Compare the complete existing injector part number and the full engine and vehicle model designations against the information listed here before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.