Red Aluminum Coolant Overflow Expansion Tank for Ford F-450 F-550 (2003-2007) 6.0L

Heavy-Duty Red Aluminum Coolant Expansion Tank for 2003-2007 Ford F-450,F-550 (P131)

What it Does: The Red Aluminum Coolant Overflow Expansion Tank replaces the crack-prone factory plastic degas bottle on 2003-2007 Ford F-450 and F-550 trucks to eliminate coolant leaks and maintain stable cooling system operating pressure.

The Stock Ford F-450,F-550 Degas Bottle Failure

The factory degas bottle on the 6.0L Power Stroke is molded from plastic that quickly degrades under harsh commercial duty cycles. Positioned directly adjacent to the turbocharger and exhaust manifold on the P131 platform, the reservoir experiences intense thermal radiation and internal cooling system pressures up to 16 psi. Over time, plasticizer migration causes the polymer to turn brittle. The molded two-piece sonic-welded seams split, the neck deforms preventing a proper cap seal, and sensor bungs weep. This leads to rapid coolant loss, air cavitation in the water pump, and elevated cylinder head temperatures that risk head gasket failure under severe towing conditions.

The Engineering Solution

Engineered as a permanent fix, this reservoir is fabricated from aircraft-grade AA5052 aluminum. The tank is 100% precision TIG-welded and pressure-tested to eliminate structural failure points common to molded tanks. Aluminum provides superior thermal dissipation and will not fatigue, yellow, or crack from continuous heat cycling and vibration. Designed for direct drop-in integration, it matches original mounting locations, accepts OEM radiator hoses, and features a durable red finish that resists under-hood chemical exposure. A matched-pressure replacement cap is included for immediate installation.

Technical Specifications

Compatibility

• 2003-2007 Ford F-450 Super Duty 6.0L Power Stroke Turbo Diesel (Chassis Cab, XL, XLT, Lariat)
• 2003-2007 Ford F-550 Super Duty 6.0L Power Stroke Turbo Diesel (Chassis Cab, XL, XLT, Lariat)

Frequently Asked Questions

Does this fit the P131 F-450,F-550?

Yes, this is a direct fit for the 2003-2007 Ford F-450,F-550 equipped with the 6.0L Power Stroke engine.

Does this tank reuse the factory mounting bracket and coolant hoses?

Yes, it utilizes the factory mounting points and hose barbs, requiring zero cutting or bracket modifications.

The Ford Super Duty Caliber

Chassis cab rigs demand fail-safe reliability under heavy payloads and extreme hauling conditions. Replacing plastic with fabricated aluminum safeguards your diesel cooling system against trailering downtime, high EGT heat soak, and catastrophic fluid loss on job sites.