• Trusted by Racers

    Professional-grade parts used trackside.

  • Real Support, Real People

    Expert help during business hours.

  • Secure Shopping

    Encrypted checkout & trusted payments.

  • Fast U.S. Shipping

    Orders ship quickly from regional warehouses.

Mishimoto 1 Quart Aluminum Coolant Overflow Tank - Black

Mishimoto
misMMRT-1LBK
In stock
Coolant Overflow Tank
$89.99
Enhance your vehicle's cooling system with the Mishimoto 1 Quart Aluminum Coolant Overflow Tank, a reliable...
$89.99

Mishimoto 1 Quart Aluminum Coolant Overflow Tank - Black

Enhance your vehicle's cooling system with the Mishimoto 1 Quart Aluminum Coolant Overflow Tank, a reliable upgrade over traditional plastic tanks. Crafted from durable 3mm-thick aluminum, this overflow tank offers exceptional strength and longevity. Its precision TIG welds and sleek black anodized finish ensure both durability and a refined appearance. The sight tube feature allows for easy monitoring of coolant levels, and its removable design can be installed on either end of the tank, making it ideal for cramped engine compartments. The CNC-machined billet cap with an O-ring seal guarantees a leak-free connection, providing peace of mind during high-performance driving or daily use. This overflow tank is a practical replacement that helps prevent air entry into your cooling system, reducing the risk of overheating and maintaining optimal engine temperature. With its universal fit and interchangeable inlet/outlet ports, installation is straightforward, making it suitable for a variety of vehicles. As a Mishimoto product, it is backed by a lifetime warranty, ensuring long-term performance and satisfaction. Whether you're upgrading your stock system or building a custom setup, this aluminum overflow tank is an essential component for reliable engine cooling.

Features:

  • Sight tube and inlet/outlet ports are interchangeable thanks to uniform threading
  • Ideal replacement for plastic factory overflow tank
  • Constructed from durable 3mm-thick aluminum
  • Includes CNC-machined billet cap with O-ring seal for leak-free operation
  • Removable sight tube can be installed on either end for versatile installation
Read More
Read Less

Shipping

Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.

Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.

Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.

Returns

Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.

Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.

Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.

Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).

Your cart

×