Dorman OE Solutions Engine Coolant Reservoir for 2007-2008 Ford Expedition Lincoln Navigator 603-339

Pressurized coolant reservoir for 2007-2008 Ford Expedition and Lincoln Navigator used to replace cracked or leaking factory overflow tanks.

Built to meet the manufacturer's design intent for reliable service, this unit is constructed from quality materials engineered to withstand underhood heat and engine vibration while maintaining a precise OE-style fit.

Key Features

• Direct replacement for original equipment part numbers including 7L1Z8A080A and AL1Z8A080B
• Manufactured from durable materials resistant to thermal stress and cracking
• Engineered to match the form, fit, and function of the factory component
• Designed to handle standard cooling system pressures safely
• Validated through testing to ensure long-term durability

Benefits

• Restores proper coolant capacity and prevents overheating issues
• Eliminates leaks caused by aged or damaged plastic tanks
• Ensures a seamless installation with no modifications required
• Reduces the risk of repeat repairs compared to worn factory parts
• Provides peace of mind with Dorman's reputation for quality
• Helps maintain optimal engine operating temperatures

Application

Ideal for owners of 2007 and 2008 Ford Expedition or Lincoln Navigator vehicles experiencing coolant loss, visible cracks in the stock tank, or failed pressure tests who need a dependable aftermarket solution.

Fitment Notes

• Compatible with 2007-2008 Ford Expedition models
• Compatible with 2007-2008 Lincoln Navigator models
• Verify vehicle compatibility using part number 603-339 before purchase

Why Choose Dorman - OE Solutions?

• Dorman delivers proven aftermarket solutions backed by over 100 years of industry experience
• Parts are engineered as direct-fit replacements to match OE specifications
• Strong focus on fit, durability, and dependable performance for daily driving

What's in the Box

• 1 Engine Coolant Reservoir

Item Dimensions

• Length: 24.5 inches
• Width: 18.0 inches
• Height: 14.0 inches
• Weight: 7.5 lbs