Sale

Heating and Cooling Overflow Tanks and Catch Cans

Mishimoto

Mishimoto 2015 Ford Mustang EcoBoost / 3.7L / 5.0L Aluminum Coolant Expansion Tank-Polished

$256.00 $232.95 Save $23.05

SKU: M00C MMRT-MUS-15E

In Stock
In Stock
Ships by Aug 30
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Mishimoto MMRT-MUS-15E Aluminum Coolant Expansion Tank is a direct fit replacement for the 2015-2023 Ford Mustang EcoBoost, V6, and V8 models, featuring internal baffles and a sight glass for optimal cooling system performance and easy monitoring.
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Part #: MMRT-MUS-15E

Add some additional reliability and engine bay styling with the Mishimoto Ford Mustang EcoBoost, V6, V8 Aluminum Coolant Expansion Tank. The Mishimoto Coolant Expansion Tank has internal baffles to prevent coolant starvation from overflow ports to engine. Also, during high speed cornering, braking, and acceleration, the internal baffled reduce coolant sloshing. The engineers at Mishimoto have also included a sight glass to allow for proper hot and cold coolant levels. The stock coolant expansion tanks is major eye sore in the engine bay, so the Mishimoto Expansion Tank is offered in polished or anodized black to keep your Mustang looking great and installs in under one hour! This tank was designed to work with the stock expansion tank cap and includes an overflow nipple on the fill neck for adding an additional coolant tank so your Mustang is NHRA legal. Plastic expansion tanks are prone to failure after years of constant temperature variations, so the Mishimoto tank is constructed from durable, TIG-welded aluminum for optimal durability and longevity. The Mishimoto Coolant Expansion Tank is engineered for perfect fitment in the 2015-2023 Ford Mustang EcoBoost, V6 and V8! As with all our products, this expansion tank includes the Mishimoto Lifetime Warranty.in

Features:

  • Direct fit for the 2015-2023 Ford Mustang EcoBoost, V6, and V8
  • Internal baffles keep coolant near overflow port during aggressive driving, preventing air entry into coolant system
  • Sight glass allows for proper hot and cold coolant levels
  • Installs in under 1 hour
  • Overflow nipple on fill neck allows for installation of additional NHRA-mandated overflow reservoir
  • 100% aluminum, fully-welded construction for maximum durability during repeated temperature transitions
  • Fits with stock overflow tank cap
  • Available in polished or black powder coat
  • Mishimoto Lifetime Warranty

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.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMishimoto
Part NumberM00C MMRT-MUS-15E

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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