Description
The Mishimoto MMOC-GRC-23NTBK is a 14-row dual-pass bar-and-plate oil cooler kit purpose-built for the 2023+ Toyota GR Corolla and its 1.6L G16E-GTS turbocharged three-cylinder engine. With that engine pushing roughly 300 horsepower out of just three cylinders and running a 10.5:1 compression ratio, oil temperatures on hard-driven GR Corollas can climb past 260 degrees — this kit is Mishimoto’s answer to that heat soak. Mounted directly in the upper grille with direct-fit brackets, the 14-row cooler is finished in black anodized bar-and-plate construction for durability on the street or the track.
This Mishimoto oil cooler kit is engineered to keep the GR Corolla’s oiling system working the way Gazoo Racing intended. By routing oil through a larger dual-pass core and adding 0.76 quarts of additional oil capacity to the system, the kit delivers a dyno-proven average reduction of 13 degrees in oil temperature, letting drivers stay on the throttle longer without watching the temp gauge creep up. Pre-assembled -10AN nylon-sheathed braided stainless-steel lines with AN flare male fittings handle installation duties and are built to tolerate high pressure and flow at high RPM, while anti-vibration mounting grommets keep the cooler secure over rough roads and track curbs. Whether you’re building a dedicated track car or want reliable daily-driver cooling, Mishimoto backs this kit with its Lifetime Warranty.
Vehicle Applications
This oil cooler kit is a direct fit for the 2023–2025 Toyota GR Corolla (chassis code GZEA14) equipped with the 1.6L G16E-GTS turbocharged three-cylinder engine. Installation does require minor modification of the radiator shroud, as detailed in the included instructions, but no drilling into the body is needed thanks to the direct-fit mounting brackets.
Features
- Direct fit for 2023+ Toyota GR Corolla
- 14-row dual-pass bar-and-plate oil cooler adds significant cooling capability
- Reduces oil temperatures by an average of 13 degrees
- Adds 0.76 quarts of oil to the system for increased cooling efficiency
- Pre-assembled -10AN nylon-sheathed braided stainless-steel lines ensure ample flow at high RPM and resist high pressure
- Direct-fit brackets make installation easy without drilling into the body
- Anti-vibration mounting grommets protect the cooler over harsh road conditions
- Available with a thermostatic sandwich plate for daily drivers/cold climates or a non-thermostatic sandwich plate for dedicated track cars/hot environments
- Includes everything needed for installation
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMOC-GRC-23NTBK
- Product Type: Cooling
- Option: Non-Thermostatic Black Cooler
- Color: Black
- Finish: Anodized
- Core Type: Bar-and-Plate
- Core Color: Black
- Grade Type: Performance
- Core Height: 6.3 in
- Core Thickness: 1.57 in
- Core Width: 12.48 in
- Core Row Quantity: 14
- Fluid Added to System: 0.76 qt
- Cooler Fluid Capacity: 0.8 qt
- Inlet/Outlet Fitting Type: AN Flare, Male
- Inlet/Outlet Size: 10AN
- Inlet/Outlet Outside Diameter: 0.625 in
- Engine Code: G16E-GTS
- Chassis Code: GZEA14
- Includes: (1) Mishimoto Dual-Pass Oil Cooler, (2) -10AN Nylon-Sheathed Braided Stainless-Steel Lines, (2) Mounting Brackets, (1) Mishimoto Oil Filter Sandwich Plate, (2) Sandwich Plate Fittings, (1) Sandwich Plate Center Bolt, Mounting Hardware, 2″x12″ Heat Protection Wrap, Mishimoto Lifetime Warranty
- Installation Note: Minor modification of the radiator shroud is required; see installation instructions for details
Frequently Asked Questions
What vehicles does this Mishimoto oil cooler kit fit?
This kit is a direct fit for the 2023–2025 Toyota GR Corolla (chassis code GZEA14) equipped with the 1.6L G16E-GTS turbocharged three-cylinder engine.
How much does the Mishimoto GR Corolla oil cooler kit reduce oil temperatures?
Dyno testing shows this 14-row dual-pass oil cooler kit provides an average reduction of 13 degrees in oil temperature.
Does this kit change the oil capacity of the GR Corolla?
Yes, the kit adds 0.76 quarts of additional oil to the system to help improve cooling efficiency.
Is installation difficult, and does it require cutting or drilling?
The kit uses direct-fit brackets so no drilling into the body is required, but minor modification of the radiator shroud is needed; full details are in the included installation instructions.
What is the difference between the thermostatic and non-thermostatic versions?
The thermostatic sandwich plate option is recommended for daily drivers or cold climates, while the non-thermostatic sandwich plate option is intended for dedicated track cars or hot environments.
What is included in the Mishimoto GR Corolla oil cooler kit?
The kit includes one Mishimoto dual-pass oil cooler, two -10AN nylon-sheathed braided stainless-steel lines, two mounting brackets, one Mishimoto oil filter sandwich plate, two sandwich plate fittings, one sandwich plate center bolt, mounting hardware, a 2″x12″ heat protection wrap, and the Mishimoto Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
