Mishimoto misMMRT-GRC-23MWBK Coolant Expansion Tank for 2023+ Toyota GR Corolla - Black

Introducing the Mishimoto Coolant Expansion Tank for the 2023+ Toyota GR Corolla. This direct-fit solution boasts all-aluminum construction that won't yellow, crack, or leak with repeated heat cycles like the stock plastic tank will. Internal baffles prevent air entry during aggressive driving, while a 40-percent increase in coolant capacity improves heat dissipation. The easy-access bleed port simplifies air bleeding, saving you time and frustration. A high-visibility sight glass and stamped cold-fill line allow quick coolant level checks. Choose from micro-wrinkle red or black finishes to match your style. Backed by the Mishimoto Lifetime Warranty, this expansion tank combines performance and aesthetics for a confident driving experience as long as you own your GR Corolla. Engine coolant reservoir designed to store and regulate excess coolant for proper system operation. Durable construction resists heat and pressure, helping prevent leaks and maintain optimal temperature.

• Internal baffles keep coolant near overflow port during aggressive driving, preventing air entry into coolant system
• All-aluminum construction won't yellow, crack, or leak over time
• 40% increase in coolant capacity over stock tank

The Mishimoto Coolant Expansion Tank is designed for the 2023+ Toyota GR Corolla, providing a durable replacement for the factory plastic reservoir. Its all-aluminum construction resists yellowing, cracking, and leaking through repeated heat cycles. The black finish provides a clean appearance while supporting long-term performance.

Key Features & Performance Benefits

• All-aluminum construction: Resists yellowing, cracking, and leaks over time.
• Increased coolant capacity: Provides a 40% increase in capacity over the stock tank to support heat dissipation.
• Internal baffles: Help keep coolant near the overflow port during aggressive driving to prevent air entry into the coolant system.
• Easy coolant monitoring: A high-visibility sight glass, stamped cold-fill line, and accessible bleed port simplify level checks and air bleeding.

Key Product Specifications & Technical Data

• Brand: Mishimoto
• Part number: misMMRT-GRC-23MWBK
• Product type: Coolant expansion tank
• Vehicle application: Toyota GR Corolla
• Model years: 2023 and 2024
• Construction: Aluminum
• Finish: Black
• Warranty: Mishimoto Lifetime Warranty

What's Included

One Mishimoto coolant expansion tank.

Fitment

Fits 2023 and 2024 Toyota GR Corolla models.

Fitments:
2023 Toyota GR Corolla Circuit Edition
2023 Toyota GR Corolla Core
2023 Toyota GR Corolla Morizo Edition
2024 Toyota GR Corolla Circuit Edition
2024 Toyota GR Corolla Core

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1