The project would reproduce spare parts that were no longer available, and sell them as genuine parts, in order for Supra loyalists to continue driving them into the future.
The A70 Supra was sold from 1986 to 1993, while the A80 was from 1993 to 2002.
Details on the specific parts and sale periods will be announced at later dates on the Toyota Gazoo Racing website.
In addition, customers can also buy the parts from Toyota dealers in the same way as normal genuine parts.
Among the parts slated for reproduction are propeller shaft, door handles and fuel sender gauge for the A70 and headlamps, door handles and brake booster for the A80.
The GR Heritage Parts will also be on display at the Tokyo Auto Salon 2020 from Jan 10-12.