1939-1940 GMC AC Truck Radiator

39-40 GMC truck

We frequentl;y restore the GMC AC Series Truck radiators but have the dimensions to replicate the 1939 and 1940 GMC with a tube and fin core conversion.

Keeping the V Cell film core: Aging engines tend to run hotter. One contributing factor is decreased flow through a clogged and dirty cell style core. Harrison Ribbon Cellular core are comprised of narrow passages that can clog with rust, sediment or get coated over time with hard scale or oil from the engine.

This type of replacement falls into the restoration side of our business. If you wish to replace your early GMC Harrison cellular core radiator with a new cellular core, then please contact us for a quote.

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.