# Mishimoto 99-03 Ford F-250 Aluminum Expansion Tank - Natural

It's been over a decade since the last 1999-2003 7.3L Powerstroke rolled off the assembly line. A lot can happen to a vehicle in that much time. And, if you're like many 7.3L Powerstroke owners, you've been through more than one degas tank. Over time, the stock plastic tank becomes brittle and cloudy, making it prone to breaking and impossible to see the coolant level. Luckily, Mishimoto has a solution that will look and function in 15 years, just as well as it does today. Replace your ugly and brittle plastic stock tank with Mishimoto's all-aluminum 1999-2003 7.3L Powerstroke degas tank. The fully-welded design of Mishimoto's degas tank means that it won't crack and leak coolant, and the integrated sight glass makes checking the coolant level easy. No more trying to shine a flashlight through a muddy tank. For even more convenience, the Mishimoto degas tank includes an additional 1/8in NPT port for easy pressure monitoring. Of course, this degas tank is also backed by Mishimoto's Lifetime Warranty. In the unlikely event you have an issue, Mishimoto has you, and your 1999-2003 Ford 7.3L Powerstroke, covered.

-   Sight glass allows for quick and easy reading of coolant level
-   43-percent increase in coolant capacity over stock degas tank
-   Full-aluminum construction with durable, TIG-welds

This Part Fits:

Year

Make

Model

Submodel

2003-2005

Ford

Excursion

Eddie Bauer

2000-2005

Ford

Excursion

Limited

2004-2005

Ford

Excursion

XLS

2000-2005

Ford

Excursion

XLT

2004

Ford

F-250 Super Duty

Harley-Davidson Edition

2004

Ford

F-250 Super Duty

King Ranch

1999-2004

Ford

F-250 Super Duty

Lariat

1999-2004

Ford

F-250 Super Duty

XL

1999-2004

Ford

F-250 Super Duty

XLT

2004

Ford

F-350 Super Duty

Harley-Davidson Edition

2003-2004

Ford

F-350 Super Duty

King Ranch

1999-2004

Ford

F-350 Super Duty

Lariat

1999-2004

Ford

F-350 Super Duty

XL

1999-2004

Ford

F-350 Super Duty

XLT

## Details

- **Price:** 502.17 CAD
- **Vendor:** Mishimoto
- **Type:** Coolant Reservoirs

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 502.17 CAD | In stock |

## Images

- Photo - Primary
- User 1
- User 1
- User 1
- User 1
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/mishimoto-99-03-ford-f-250-aluminum-expansion-tank-natural)
> Updated: 2026-06-28