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Skip to contentHC 47-57 Round OEM Donuts
For 1947-54 Chevy Cars and 1949-1957 Chevy Trucks Harrison produced a Recirculating Heater Core. The lower priced Harrison Recirculating Heater Core generated less heat, used the in-cabin air and had the round core. Its most commonly found in southern mild climate cars and is a tricky little unit to make. If you are a purist, you will probably want your round Harrison cellular heater core restored for the 6V system. 8-1/4" OD and 3-3/4" ID
We make to order and build queue varies.
Made in the USA.
3128445

We make to order. Please allow adequate time for us to build.
Build time estimates [April 23, 2026]
Model Ts Brass 18 weeks
Model Ts Black 13 weeks
Model As 17 weeks
Heater cores ~11 weeks
1928-34 Ford Hot rods 2-3 weeks
Common street rods ~12-15 weeks
Tricky customs & complicated restorations ~20-25 weeks
We appreciate your patience as we continue to recruit and train new fabricators and manage the labor shortfall our country has been experiencing.
We make to order. Please allow adequate time for us to build.
Estimated Build time [April 23, 2026]
Model Ts Brass 18 weeks
Model Ts Black 13 weeks
Model As 17 weeks
Heater cores ~11 weeks
1928-34 Ford Hot rods 2-3 weeks
Common street rods ~12-15 weeks
Tricky customs & complicated restorations ~20-25 weeks
We appreciate your patience as we continue to recruit and train new fabricators and manage the labor shortfall our country has been experiencing.