Element

Silverado, sierra. With diesel. 6.6L turbo diesel, 2006-07. All models. 8.1L gas, all. Helps trap airborne particles before they enter the engine Excellent filter capacity and efficiency Allows airflow restriction to the engine for performance Equipped with tight seals to keep unfiltered air from entering the combustion chamber This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors

Indicator

6.6L diesel. 8.1L gas. Provides a visual indicator when filtered air becomes restricted and the filter requires replacement This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Air Mass Sensor

Measures the amount of air entering the engine so the ECM can determine the amount of fuel to inject This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Rear Duct

8.1L gas. Helps guide airflow to your vehicle's air filter This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Support

8.1L gas. 6.6L turbo diesel, 2001-05. Support. 6.6L turbo diesel, 2006-07. 4.8, 5.3 & 6.0L gas. 4.3L gas. 4.8, 5.3, 6.0 & 6.2L. Helps align and secure your vehicle's air cleaner This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors