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- Engine
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- Steering
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- A/C, Heater & Defrost
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- Body Panels (Sheet Metal)
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- Brakes
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- Dash Panel Parts
- Electrical & Wiring
- Emblems & Decals
- Engine
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- Interior Hard Parts
- Interior Upholstery
- Lighting
- Paint & Adhesives
- Steering
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- Wheels & Tires
- A/C, Heater & Defrost
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- Body Panels (Sheet Metal)
- Body Part Components
- Brakes
- Cooling Systems
- Dash Panel Parts
- Electrical & Wiring
- Emblems & Decals
- Engine
- Frame
- Fuel System
- Glass
- Interior Hard Parts
- Interior Upholstery
- Lighting
- Paint & Adhesives
- Steering
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- A/C, Heater & Defrost
- Audio
- Body Panels (Sheet Metal)
- Body Part Components
- Brakes
- Cooling Systems
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- Engine
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- Lighting
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- Brakes
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- Engine
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- Engine
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- A/C, Heater & Defrost
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- Lighting
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- Transmission
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- A/C, Heater & Defrost
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- Body Panels (Sheet Metal)
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- Brakes
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- Electrical & Wiring
- Emblems & Decals
- Engine
- Frame
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- Interior Hard Parts
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- Lighting
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- A/C, Heater & Defrost
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- Cooling Systems
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- Electrical & Wiring
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- Engine
- Frame
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- Interior Hard Parts
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- Brakes
- Cooling Systems
- Dash Panel Parts
- Electrical & Wiring
- Emblems & Decals
- Engine
- Frame
- Fuel System
- Glass
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- Steering
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- Wheels & Tires
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- Audio
- Body Panels (Sheet Metal)
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- Dash Panel Parts
- Electrical & Wiring
- Emblems & Decals
- Engine
- Frame
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- Lighting
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- A/C, Heater & Defrost
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- Brakes
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- Dash Panel Parts
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- Brakes
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- Electrical & Wiring
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- A/C, Heater & Defrost
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- Brakes
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- Emblems & Decals
- Engine
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- Interior Hard Parts
- Interior Upholstery
- Lighting
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- A/C, Heater & Defrost
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- Body Panels (Sheet Metal)
- Body Part Components
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- Engine
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- Steering
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- Wheels & Tires
- A/C, Heater & Defrost
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- Engine
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- A/C, Heater & Defrost
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- Engine
- Frame
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Heater & Defrost Parts
Reliable heat and defrost function make a big difference in comfort and visibility while driving a classic truck. Southwest Classics offers heater and defrost parts for 1988-98 Chevy Truck, GMC models designed to restore proper airflow, dependable operation, and factory-style fitment. Whether you are replacing worn heater components, damaged ducts, or aging defrost parts, these components help keep Silverado, Sierra, C1500, K1500, and more comfortable and functional in changing weather conditions.