Dorman - OE Solutions Engine Coolant Reservoir P/N:603-380
Dorman 603-055 front coolant recovery tank for the 2006-2010 Ford Explorer V6 4.0L or V8 4.6L and other vehicles holds the coolant that pushes out of the cooling system as the engine heats up. Also known as an engine coolant recovery tank, it takes the place of a cracked or leaking one.
A cracked body, coolant stains around the tank or coolant that keeps going missing can mean the tank needs replacing. Look for cracks and stains with the engine off and cool. Before you replace the tank, rule out a leaking hose or a loose clamp at its connections, since coolant loss can start there too.
This direct replacement is built to fit and work like the original part. It also fits the 2007-2010 Ford Explorer Sport Trac V6 4.0L or V8 4.6L and the 2006-2010 Mercury Mountaineer V6 4.0L or V8 4.6L.
Fit and size
Build and materials
One coolant recovery tank and one cap. One tank is all the application calls for. Mounting hardware and brackets are not included, so plan on new fasteners, since the old ones may not be reusable.
Interchange: ?APET0156 · DAKG-A080AC
6L2Z8A080A · 6L2Z8A080AA · 6L2Z8A080B · 6L2Z8A080C · 6L2Z8K103AA · 8L2Z8A080A · 8L2Z8A080B · 9L3Z8K103A · 2411008 · FO3014153 · SK603055 · FRT1534C
This part cross-references / interchanges with the following part numbers:
Is the Dorman coolant recovery tank pressurized?
No. The Dorman 603-055 is a non-pressurized tank with a flip-top cap.
Does the Dorman 603-055 fit the 2007-2010 Ford Explorer Sport Trac V6 4.0L or V8 4.6L?
Yes. Dorman 603-055 fits that truck with either the V6 4.0L or the V8 4.6L, and it takes one tank.
Does the Dorman coolant overflow tank come with its cap?
Yes. The box holds one tank and one flip-top cap. Mounting hardware and mounting brackets are not included.
What material is this Dorman radiator overflow tank made of?
It is plastic. The maker built it from quality materials to handle underhood heat and engine vibration.
Does the Dorman overflow tank 603-055 replace 6L2Z8A080A?
Yes. 6L2Z8A080A is one of the numbers cross-referenced to Dorman 603-055, which replaces it.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.