SKU: 9978294540

Mishimoto MMRAD-GRC-23 FITS: Radiators FITS: 2023+ Toyota GR Corolla Performance Aluminum Radiator Radiators

Sale price$259.57 Regular price$288.41
Save 10%

Pay in installments of $72.10 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Mishimoto MMRAD-GRC-23 FITS: Radiators FITS: 2023+ Toyota GR Corolla Performance Aluminum Radiator RadiatorsThe 2023+ Toyota GR Corolla churns out 300 horsepower from just 3 cylinders and 1. 6L of displacement. Each cylinder is running at the limit, and your GRC's cooling system has a lot of work to do to keep up. Long battles on the track or sitting in traffic can easily overwhelm the stock cooling system, and some owners have seen oil temps over 260 degrees on track. The stock oil cooler on the GRC is a liquid to liquid design that relies on coolant

The 2023+ Toyota GR Corolla churns out 300 horsepower from just 3 cylinders and 1.6L of displacement. Each cylinder is running at the limit, and your GRC's cooling system has a lot of work to do to keep up. Long battles on the track or sitting in traffic can easily overwhelm the stock cooling system, and some owners have seen oil temps over 260 degrees on track. The stock oil cooler on the GRC is a liquid-to-liquid design that relies on coolant temperatures to maintain safe oil temps. If your radiator can't keep up, it's only a matter of time before your oil can't either. That's why Mishimoto has developed a performance aluminum radiator to keep every aspect of your GR Corolla's engine cool.----This all-aluminum radiator replaces the stock plastic end tank unit with a core that is 51 percent larger. That increase in core volume means your cooling system can hold more coolant and dissipate more heat, placing less stress on the cooling system overall. Inside the core, we've focused on utilizing the entire cooling area with strutted tubes and louvered fins. Strutted tubes allow us to use a single, wider tube, that has greater effective area than multi-row cores. These strutted tubes also significantly improve core rigidity to help prevent leaks from impacts like potholes or running off track. Louvered external fins circulate air throughout the core to transfer more heat. Finally, the included foam shrouding ensures cool air goes through the core, not just around it.----In addition to performance, we've also thought about durability and serviceability. Our radiator features reinforced intercooler mounts, so you can add a larger intercooler (like Mishimoto's) without worrying about the mounts breaking. To help service your new radiator, we've designed an extended drain port with a slotted drain plug, to keep draining mess-free. Of course, this 2023+ GR Corolla performance radiator is also backed by our Mishimoto Lifetime Warranty for a lifetime of performance.

User 1
  • 51 percent increase in core volume over stock for improved cooling performance
  • Single-row core with strutted tubes utilizes entire core thickness for cooling
  • Louvered external fins improve heat transfer

This Part Fits:

Year Make Model Submodel
2023-2024 Toyota GR Corolla Circuit Edition
2023-2025 Toyota GR Corolla Core
2023 Toyota GR Corolla Morizo Edition
2024-2026 Toyota GR Corolla Premium
2026 Toyota GR Corolla Premium Plus
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 9978294540

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 28 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jeff Pesos
Belleville, US
★★★★★ 4
Works like a supplement
If you use it and see a difference, you will blame it on this cleaner, if not, you will say the product does not work. Exactly like your weight loss supplements! Who knows what this stuff does, but it may do something. Or maybe it does not.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
M
Verified Purchase
Michael Sliwinski
Belleville, US
★★★★★ 5
Used to clean an O2 sensor
Seems to have resolved an issue with a wavering idle for my 89 Mercedes 300e with 468,000 miles.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
M
Verified Purchase
Marvin Burton
New York, US
★★★★★ 3
Nothing
Didn’t work for me
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
M
Verified Purchase
mechanic
San Leandro, US
★★★★★ 1
It doesn’t work
This don’t work at all. I do not recommend. I use all four containers, and the light is still on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
2014 Ford Edge SEL
Worked like a charm! Used as directed, it cleared the P0420 & P0430 codes that were coming up on my OBD II scanner after a complete engine swap. Definitely recommend this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026

recommand products