Description
Heater Core Firewall Seal – Without A/C – 2" Thick Heater Core – 1968–1981 GM Models | CHQ Product Offered by AMD
Restore proper sealing and factory-correct fit at the firewall with this Heater Core Firewall Seal, designed for non–air-conditioned GM vehicles using a 2-inch thick heater core. This technically correct reproduction is manufactured by Classic Headquarters (CHQ) and offered by Auto Metal Direct (AMD) to accurately replace the original GM seal.
Constructed from dense, form-fitting molded foam, this seal is designed to properly surround the heater core tubes and seal the firewall opening, preventing air leaks, water intrusion, engine fumes, and unwanted heat from entering the cabin. Unlike generic foam replacements, this reproduction matches the original shape, thickness, and compression characteristics used by GM.
This seal is a direct replacement for GM Part Number 3929024 (GM Group 8.845) and is correct for a wide range of 1968–1981 GM F-body, X-body, and A-body vehicles equipped without factory air conditioning.
Key Features:
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Correct heater core firewall seal for non-A/C applications
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Designed for 2-inch thick heater cores
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Dense, molded foam construction for proper sealing
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OE-style shape and fit as original
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Seals heater core tubes at the firewall opening
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Helps prevent air, water, heat, and fumes from entering the cabin
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Direct replacement for GM Part #3929024
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Manufactured by CHQ; offered by AMD
Vehicle Compatibility (Without Air Conditioning):
Chevrolet
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1968–1969 Camaro (except 396)
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1970–1981 Camaro
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1968–1972 Chevy II / Nova (except 396)
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1973–1979 Nova
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1968–1972 Chevelle
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1968–1972 El Camino
GMC
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1971–1972 Sprint
Pontiac
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1968–1981 Firebird
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1973–1979 Ventura
Buick
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1973–1975 Apollo
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1975–1979 Skylark
Oldsmobile
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1973–1979 Omega
For vehicles equipped with factory air conditioning or different heater core thicknesses, a different seal is required.
This fits:
Vehicle Application(s)
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