Dorman 604-118 HVAC Blend Door Actuator - Main

Dorman 604-118 HVAC Blend Door Actuator

The Dorman 604-118 HVAC blend door actuator is built for specific Buick LeSabre and Pontiac Bonneville applications with manual temperature control systems. It uses a rotary activation design and a plastic housing to match the original actuator’s function in the vehicle’s HVAC system.

Fits 2000-2005 Buick LeSabre, Main; Fits 2000-2005 Pontiac Bonneville, Main.

• Rotary switch activation for HVAC blend door control
• Plastic construction for direct replacement use
• Matches the original actuator’s operating role on listed vehicles
• Fits Buick LeSabre models with RPO Code C67 front manual electronic temperature controls
• Fits Pontiac Bonneville models with manual temperature control

Detailed Product Information

This HVAC heater blend door actuator is engineered to replicate the quality and performance of the original unit on the listed applications. In Buick LeSabre and Pontiac Bonneville models, the actuator helps control air distribution and temperature blend inside the cabin by moving the blend door to the requested position. The Dorman 604-118 is a direct-fit replacement for vehicles equipped with the specified HVAC configurations, including air inlet and temperature control applications shown in the fitment data.

This part cross-references SKP SK604118 for the same application.

Common Problems This Part Can Address

• Incorrect cabin temperature output
• Air stuck on hot or cold settings
• HVAC mode or blend door movement issues
• Clicking or repeated actuator noise from the dash area
• Loss of proper air inlet or temperature control response

Installation Notes and Tips

Verify the vehicle’s HVAC control type and fitment notes before installation. This actuator is listed for the main position on the specified Buick LeSabre and Pontiac Bonneville applications. Confirm the original part’s connector style, mounting location, and system configuration against the vehicle before replacement.

Quality Assurance

Dorman designs this blend door actuator to match the original part’s quality and performance on the listed vehicles. The part number 604-118 is referenced for direct replacement selection on the specified HVAC applications.