Spectra 99276 HVAC Heater Core - Rear

Reliable HVAC Heater Core for Select GM and Isuzu Models

The Spectra 99276 HVAC heater core is designed to restore efficient heating performance in your vehicle's climate control system. Engineered for compatibility with various Buick, Chevrolet, GMC, Isuzu, and Oldsmobile models, this heater core ensures proper heat transfer and cabin comfort.

• Direct replacement HVAC heater core for specific GM and Isuzu vehicles
• Compatible with Buick Ascender, Chevrolet Trailblazer, GMC Envoy, Isuzu Ascender, and Oldsmobile Bravada
• Part number 99276 ensures precise fit and function
• Constructed to meet OEM specifications for durability and performance
• Designed for use in HVAC systems requiring efficient heat exchange

Product Details and Compatibility

The Spectra 99276 heater core is a critical component within the HVAC system, responsible for transferring heat from the engine coolant to the vehicle’s interior. This part is compatible with a range of mid-2000s SUVs and crossovers including the Buick Ascender, Chevrolet Trailblazer and Trailblazer EXT, GMC Envoy series (Envoy, Envoy XL, Envoy XUV), Isuzu Ascender, and Oldsmobile Bravada. Using the correct heater core like the Spectra 99276 helps maintain consistent cabin temperature and prevents coolant leaks that can damage other HVAC components.

Common Applications and Problem Resolution

• Restores heating function in Buick Ascender and Chevrolet Trailblazer models
• Eliminates coolant leaks inside the passenger compartment
• Resolves insufficient cabin heat issues in GMC Envoy and Isuzu Ascender vehicles
• Prevents fogging and moisture buildup caused by faulty heater cores
• Addresses overheating concerns related to HVAC system inefficiencies

Installation Notes and Tips

Installation of the Spectra 99276 heater core requires removal of the dashboard and HVAC housing in most compatible vehicles. It is recommended to drain the cooling system before removal to avoid spills. Careful handling is necessary to prevent damage to the delicate fins and tubes of the heater core. After installation, refill and bleed the cooling system to remove air pockets and verify proper heater operation.

Quality Assurance and Warranty

Manufactured to meet or exceed OEM standards, the Spectra 99276 heater core undergoes rigorous quality control to ensure reliable performance. While specific warranty details may vary, Spectra typically offers coverage against defects in materials and workmanship. Using this part helps maintain the integrity of your vehicle’s HVAC system and supports long-term durability.