Product images and videos 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.

Sale

Heating and Cooling› Overflow Tanks and Catch Cans

Flashark

Aluminum Coolant Reservoir

Name: Aluminum Coolant Reservoir
Brand: Flashark
SKU: FLCS08750BK

$259.00 $251.23 Save $7.77

SKU: FLCS08750BK

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Easy — 1–2 hours

Overview

Constructed from 6061 aircraft-grade aluminum with TIG welding, it offers increased strength and durability. This reservoir helps prevent leaks and haziness associated with aging plastic tanks. It includes a sight glass for easy coolant level checks and is compatible with the factory cap.

Show original supplier description

The Flashark Coolant Reservoir is a direct replacement for the stock plastic coolant expansion tank in 2015-2023 Ford Mustangs. Constructed from robust 6061 aircraft-grade aluminum and featuring TIG welding, this reservoir is built for maximum strength and longevity. Unlike the original plastic tank, which can become brittle and opaque over time, leading to leaks and reduced visibility of the coolant level, the aluminum construction offers superior durability and heat dissipation. This not only enhances system performance but also contributes to greater longevity. The design incorporates a convenient sight glass for effortless coolant level monitoring, and it maintains compatibility with the factory cap. Installation is straightforward, requiring basic tools and approximately 30 minutes. **Fitment:** * **Ford Mustang EcoBoost:** 2015-2023 (Factory-Equipped 2.3L Turbo I4 Engine) * **Ford Mustang V6:** 2015-2023 (Factory-Equipped 3.7L V6 Engine) * **Ford Mustang V8:** 2015-2023 (Factory-Equipped 5.0L V8 Engine)

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	Flashark
Part Number	FLCS08750BK
Category	Heating and Cooling

5,000+ Trusted brands

1M+ Enthusiasts

5M+ Parts sold

(760) 282-4645 hello@motormia.co

Buy with Confidence

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.

View Full Return Policy

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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy