Aluminum Coolant Expansion Tank - Micro-Wrinkle Black

• 2023–2026 Toyota | GR Corolla

The Mishimoto Aluminum Coolant Expansion Tank is a direct-fit coolant expansion tank for the 2023-2026 Toyota GR Corolla, finished in Micro-Wrinkle Black. Its all-aluminum construction will not yellow, crack, or leak with repeated heat cycles like the stock plastic tank, internal baffles prevent air entry during aggressive driving, and it provides a 40% fill line capacity increase and a 50% overall tank capacity increase over the stock tank.

• Part number: MMRT-GRC-23MWBK
• Direct fit for the 2023+ Toyota GR Corolla
• All-aluminum construction that will not yellow, crack, or leak with repeated heat cycles like the stock plastic tank
• Internal baffles prevent air entry during aggressive driving
• 40% fill line capacity increase and 50% overall tank capacity increase
• Fluid capacity: 0.41 gal; height: 7.43 in; width: 6.13 in
• Easy-access bleed port simplifies air bleeding
• High-visibility sight glass and stamped cold-fill line allow quick coolant level checks
• Micro-wrinkle black finish on this listing
• (1) Expansion Tank, (1) Overflow Hose, (1) Mishimoto Expansion Tank Cap, (2) Worm Gear Clamps, Mishimoto Lifetime Warranty
• Mishimoto Lifetime Warranty

Frequently Asked Questions

Does this expansion tank fit my GR Corolla?
Yes, if you drive a 2023-2026 Toyota GR Corolla. This listing is the Micro-Wrinkle Black finish, part number MMRT-GRC-23MWBK.

What is included in the box?
(1) Expansion Tank, (1) Overflow Hose, (1) Mishimoto Expansion Tank Cap, (2) Worm Gear Clamps, Mishimoto Lifetime Warranty

How do I check the coolant level and bleed air?
A high-visibility sight glass and a stamped cold-fill line allow quick coolant level checks, and an easy-access bleed port simplifies air bleeding. Refer to the OEM bleed procedure.

How much more coolant does this tank hold?
It provides a 40% fill line capacity increase and a 50% overall tank capacity increase over the stock plastic tank, with a fluid capacity of 0.41 gallons.

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