Envoy/Trailblazer. 4.2L, front. 5.3 & 6.0L, front. Rainier. Bravada.

Heater Core Seal

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

Heater Core Lower Seal

4.2L, front. 5.3 & 6.0L, front. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

4.2L, front. 5.3 & 6.0L, front.

Inner Cover Inner Seal

4.2L, front. 5.3 & 6.0L, front. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

HVAC Mode Door

1998-05, mode. 1998-2004. mode. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Actuator

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Actuator, Right

All models. Front 2003-06, air inlet. 5.3 & 6.0L, front, inlet, manual control. 4.2L, front, inlet, manual control. Front 2000-02, air inlet. 2003-07. air inlet. 1999-02. air inlet. Restore air inlet door operation caused by worn actuator