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Skip to contentHC Ford 40-41 F21T truck
The Ford 1940-1941 F 21 T from EA Industries looks quite like the 1941-1948 Car and 1942-1947 Ford Truck Under Dash Hot Water Heater Core. "We think" the difference is that the 1940-1941 truck first used a solid rod passing through the heater core box to actuate the defrocter and then in the 1941-1948 Car and 1942-1947 Ford Truck Under Dash Hot Water Heater Core they used a flexible spiral wound cable passing over the box to actuate the defroster.
We have modified our tank design to accomodate both.
YOU'RE BUYING A HEATER CORE NOT THE HEATER CORE HOUSING PICTURED
We make our own copper cores and fabricate our own tanks so, naturally, we get asked to build custom heater cores or "small radiators."
Made in the USA.

We make to order. Please allow adequate time for us to build.
Build time estimates [Feb 4 2026]
Model Ts Brass 12 weeks
Model Ts Black 8 weeks
Model As 13 weeks
Heater cores ~11 weeks
1928-34 Ford Hot rods 8 weeks
Common street rods ~12-15 weeks
Tricky customs & complicated restorations ~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.
Build time estimates [Feb 4 2026]
Model Ts Brass 12 weeks
Model Ts Black 8 weeks
Model As 13 weeks
Heater cores ~11 weeks
1928-34 Ford Hot rods 8 weeks
Common street rods ~12-15 weeks
Tricky customs & complicated restorations ~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.