Details
Product Information
Introducing the Mishimoto Coolant Expansion Tank for the + Ford Mustang GT and EcoBoost. This direct-fit solution boasts all-aluminum construction that won't yellow, crack, or leak with repeated heat cycles like the stock plastic tank will. Internal baffles prevent air entry during aggressive driving, while a 55-percent increase in coolant capacity improves heat dissipation. A high-visibility sight glass and stamped cold-fill line allow quick coolant level checks. Choose from a polished or micro-wrinkle black powder coated finish to match your style. Our expansion tank also features a coolant overflow port that allows you to install an NHRA-mandated overflow tank. This tank installs in an hour or less and is backed by the Mishimoto Lifetime Warranty to combine performance and aesthetics for a confident driving experience as long as you own your + Mustang.
Specifications
| Type | Aluminum coolant reservoir / expansion tank |
| Material | Aluminum |
| Finish | Black |
| Chassis Codes | S650 |
| Part Number | MMRT-MUS-24MWBK |
| Warranty | Mishimoto Lifetime Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2024-2026 | Ford | Mustang | Dark Horse |
| 2024-2025 | Ford | Mustang | Dark Horse Premium |
| 2024-2026 | Ford | Mustang | EcoBoost |
| 2024-2026 | Ford | Mustang | EcoBoost Premium |
| 2024-2026 | Ford | Mustang | GT |
| 2024-2026 | Ford | Mustang | GT Premium |
Which vehicles does this fit?
- It fits the Ford Mustang 2024-2026. The full year, make, model and submodel list is in the fitment table on this page.
Is there a warranty?
- Mishimoto Lifetime Warranty.
What is it made of?
- Aluminum.
Shipping
- In stock orders typically ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty






