OVERVIEW
The Mishimoto Performance Aluminum Radiator Kit overhauls the entire coolant-side cooling stack on the 2020+ Toyota GR Supra 3.0L. Keeping the A90 cool is a tag-team effort between the primary radiator and the two auxiliary radiators, so Mishimoto redesigned all three from the ground up rather than upgrading one in isolation.
The slim factory cores and plastic end tanks are replaced with full aluminum, TIG-welded construction built to survive street, track and drag-strip use. The primary radiator runs a 1.65" thick core, increasing core volume by 31% and external fin surface area by 57%, and uses strutted tubes throughout so the core resists chassis flex rather than cracking or leaking. The auxiliary radiators get the same treatment with 1.57" thick cores, a 30% gain in core volume and a 180% increase in external fin surface area.
All three cores are supplied in a polished finish and carry the Mishimoto Lifetime Warranty.
SPECS
- Primary radiator: 1.65" thick efficiently brazed aluminum core
- Primary radiator: core volume increased 31% over stock
- Primary radiator: external fin surface area increased 57% over stock
- Primary radiator: strutted tubes throughout for resistance to chassis flex
- Auxiliary radiators: 1.57" thick cores
- Auxiliary radiators: core volume increased 30% over stock
- Auxiliary radiators: external fin surface area increased 180% over stock
- Full aluminum construction with TIG-welded end tanks
- Primary radiator overall dimensions: 19.7" length × 27" height × 4.3" width
- 1 row; 1.25" inlet and 1.25" outlet
- Increased coolant capacity over the factory system
- Polished finish
- Mishimoto Lifetime Warranty
PARTS INCLUDED
- (1) Performance Aluminum Radiator (primary)
- (2) Performance Auxiliary Radiators
- Mishimoto Lifetime Warranty
TECH RESOURCES
Additional Parts Required
- None. Mishimoto specifies no additional hardware for this radiator kit.
- Consumable: fresh coolant is required to refill the system after installation.
- Installer-supplied hand tools, a coolant funnel and a drain pan are required. Installation difficulty is rated medium by Mishimoto.
Installation
Notes
- Fitment follows Mishimoto's current application data for the GR Supra 3.0L (B58). Confirm fitment with Speed Logic for any 2.0L or BMW Z4 application.
PART NUMBER
- MMRAD-SUP-20K
VEHICLE APPLICATIONS
| Make / Model | Chassis | Engine | Years |
|---|---|---|---|
| Toyota GR Supra (Base) | A90 | B58 3.0L Turbo I6 | 2020–2022 |
| Toyota GR Supra Premium | A90 | B58 3.0L Turbo I6 | 2020–2022 |
| Toyota GR Supra Launch Edition | A90 | B58 3.0L Turbo I6 | 2020 |
| Toyota GR Supra A91 Edition | A91 | B58 3.0L Turbo I6 | 2021–2022 |