Description
The Mishimoto Aluminum Degas Bottle (MMRT-F2D-03P) is a direct-fit replacement expansion tank engineered specifically for the Ford 6.0L Powerstroke, built to solve the cracking and failure issues that plague the factory plastic degas reservoir. Constructed from fully TIG-welded aluminum, this Mishimoto cooling system component is offered in a polished or black powdercoat finish so it looks as good as it performs in your engine bay.
Constant heat cycling takes a toll on the stock plastic degas bottle over time, leading to leaks, cracks, and coolant loss right when you need reliability most. Mishimoto addresses this with a durable aluminum degas bottle that includes a sight tube for quickly checking hot and cold coolant levels, plus a 1/8-in NPT plugged port that leaves room for an optional pressure sensor down the road. It’s a straightforward, purpose-built upgrade to the factory cooling system, backed by the Mishimoto Lifetime Warranty.
Vehicle Applications
This Mishimoto degas bottle is designed for a wide range of Ford Super Duty and Excursion models built around the 6.0L Powerstroke. Coverage includes the Ford Excursion Eddie Bauer, Limited, and XLT (2003-2005) along with the Excursion XLS (2004-2005). On the Super Duty side, it fits the Ford F-250 Super Duty XL, XLT, and Lariat (2003-2007) as well as the F-250 Harley-Davidson Edition and King Ranch (2004-2007). It also covers the Ford F-350 Super Duty XL, XLT, Lariat, and King Ranch (2003-2007), along with the F-350 Harley-Davidson Edition (2004-2007). Additional fitment extends to the Ford F-450 Super Duty XL, XLT, and Lariat (2003-2007) and the F-450 Base (2003-2004), plus the Ford F-550 Super Duty Base, XL, XLT, and Lariat (2003-2007).
Features
- Full aluminum construction with durable, TIG-welds
- Sight tube allows for checking proper hot and cold coolant levels
- Perfect upgrade to the factory plastic degas reservoir
- Additional 1/8-in NPT plugged port for an optional pressure sensor
- Available in polished or black powdercoated finish
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Material: 6061 Aluminum
- Includes: (1) Aluminum Expansion Tank w/ Sight Tube — Mishimoto Lifetime Warranty
- Finish options: Polished or black powdercoat
- Installation note: 22 in-lbs (2.5NM) recommended for all worm-gear clamps; operating range 18-27 in-lbs (2-3NM); do not exceed maximum torque rating of 27 in-lbs (3NM)
- Mishimoto recommends checking the sight tube on the side of the degas tank after a few hot and cold cycles to confirm proper coolant level
Frequently Asked Questions
What is the Mishimoto MMRT-F2D-03P Degas Bottle made from?
It is constructed from 6061 aluminum with fully TIG-welded seams for durability.
What finishes are available for this degas bottle?
It is available in a polished or black powdercoated finish.
Does this degas bottle allow for a pressure sensor?
Yes, it includes an additional 1/8-in NPT plugged port for an optional pressure sensor.
How do I check coolant levels with this degas bottle?
The bottle features a sight tube, and Mishimoto recommends checking it after a few hot and cold cycles to confirm proper coolant level.
What vehicles does this degas bottle fit?
It fits the 2003-2005 Ford Excursion Eddie Bauer, Limited, and XLT, the 2004-2005 Excursion XLS, the 2003-2007 F-250 Super Duty XL, XLT, and Lariat, the 2004-2007 F-250 Harley-Davidson Edition and King Ranch, the 2003-2007 F-350 Super Duty XL, XLT, Lariat, and King Ranch, the 2004-2007 F-350 Harley-Davidson Edition, the 2003-2007 F-450 Super Duty XL, XLT, and Lariat, the 2003-2004 F-450 Base, and the 2003-2007 F-550 Super Duty Base, XL, XLT, and Lariat.
Does this degas bottle come with a warranty?
Yes, it includes the Mishimoto Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.













