Mishimoto Micro-Wrinkle Red Aluminum Coolant Expansion Tank for 2023-2025 Toyota GR Corolla (MMRT-GRC-23MWRD)

Fits 2023-2025 Toyota GR Corolla (Circuit Edition, Core, and Morizo Edition).

Replace the failure-prone factory plastic reservoir with the Mishimoto Aluminum Coolant Expansion Tank. Designed as a direct-fit solution, this all-aluminum tank eliminates the risks of yellowing, cracking, and leaking common with OE plastic units subjected to repeated high-heat cycles. This tank features a 40-percent increase in coolant capacity to improve heat dissipation and manage thermal loads more effectively.

The internal baffling is specifically engineered to keep coolant near the overflow port during high-G cornering, preventing air from entering the cooling system. Maintenance is simplified through an integrated high-visibility sight glass, a stamped cold-fill line for quick level checks, and an easy-access bleed port. Finished in a micro-wrinkle red powder coat, this tank provides a durable, professional look under the hood.

• Direct-fit for the 2023-2025 Toyota GR Corolla
• All-aluminum, TIG-welded construction for long-term durability
• Internal baffles prevent air aeration during aggressive driving
• 40% increase in coolant capacity over the stock tank
• Integrated sight glass and stamped cold-fill line
• Micro-wrinkle red powder-coated finish
• Mishimoto Lifetime Warranty
• MPN: MMRT-GRC-23MWRD