Spectra 94611 HVAC Heater Core - Rear

Spectra 94611 HVAC Heater Core

The Spectra 94611 HVAC heater core is a direct-fit replacement for rear heater applications on select Chevrolet and GMC vans. Built to meet or exceed original equipment performance, it is a practical choice for restoring cabin heat in high-mileage vehicles.

• Rear HVAC heater core for select Chevrolet G10, G20, and G30 models
• Rear HVAC heater core for select GMC G1500, G2500, and G3500 models
• Engineered with manufacturing controls and quality checks for OE-level fit and function
• Cross-references Four Seasons 98611 for the same application
• Part number 94611 for easy catalog matching

Application Details

Compatible with 1981-1995 Chevrolet G10, rear; 1981-1995 Chevrolet G20, rear; 1981-1995 Chevrolet G30, rear; 1981-1995 GMC G1500, rear; 1981-1995 GMC G2500, rear; and 1981-1995 GMC G3500, rear. This heater core is intended for rear HVAC systems in Chevrolet G10, G20, and G30 vans as well as GMC G1500, G2500, and G3500 vans.

Common Uses

• Restores rear cabin heat output
• Addresses coolant leakage from a failing heater core
• Helps correct weak or uneven heat from the rear HVAC system
• Replaces a clogged or restricted heater core
• Supports repair of fogging or coolant odor caused by heater core failure

Installation Notes

Verify vehicle year, make, model, and rear HVAC configuration before ordering. Compare the original unit to the replacement part number 94611 and confirm hose routing, core dimensions, and mounting points during installation. Proper cooling system service and leak checks should be completed after replacement.

Quality Assurance

Spectra Premium states that its HVAC heater cores are produced with engineering, manufacturing technology, and quality control processes intended to meet or exceed the performance of the original equipment they replace.