| ACDELCO 155654 Specifications |
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| Material | Plastic, Foam | | Mounting Hardware Included | No | | Programming Required | No | | Wiring Harness Included | No |
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Features:- Restores heating performance on systems with damaged temperature valves/doors
- GM-recommended replacement part for your GM vehicle's original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specification for fit, form, and function
 Which Blend Door Do You Need?
| RECIRCULATION |
Controls the intake of air into the system, either bringing outside air in or using inside air in recirculation.
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| BLEND |
Controls the temperature of the air flowing from the vents by mixing hot and cold air from the heater core and the evaporator core.
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| MODE |
Controls which vents have air flow, i.e. Floor, Panel or Front, Defrost, or any combination of those.
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Diagram:
ACDelco Quality ACDelco breaks down their premium portfolio of Original Equipment and Aftermarket parts into two tiers: GM Original Equipment and ACDelco Gold.
| GM ORIGINAL EQUIPMENT |
| GM Original Equipment parts are the true OE parts installed during production or validated by GM—designed, engineered, and tested to rigorous standards and backed by General Motors. |
| ACDELCO GOLD (PROFESSIONAL) |
| ACDelco Gold parts are the high-quality alternative to OE parts, manufactured to meet GM expectations for fit, form, and function and backed by General Motors. |
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| OEM / Interchange Numbers: 52474918 |
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