Replaces

Radiator Overflow Bottle with Cap Dorman 603-028 - 1AROB00220

Our coolant overflow bottles are some of the highest quality replacements on the market!

Specifications:

  • Brand New Radiator Overflow Bottle
  • Commonly called "Coolant Overflow Tank" or "Reservoir"
  • Strengthened and redesigned in the vulnerable areas of failure
  • Replacement for originals that are cracked or broken
  • Plastic construction
  • Includes Cap

Now you can buy a high quality coolant reservoir that is built to strict quality control standards. REPLACE your broken or cracked one now with this great fitting Radiator Overflow Bottle.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. step : Removing the Coolant Bottle (0:39)
    • Loosen the upper coolant bottle hose clamp with pliers
    • Pull the hose off the coolant bottle
    • Remove the two 8mm bolts from the coolant bottle
    • Clamp the lower coolant bottle hose clamp with vise grip pliers
    • Have a drain pan ready
    • Loosen the lower coolant bottle hose clamp with pliers
    • Pull the hose off the coolant bottle
    • Release the relay box tabs
    • Pull back the relay box
    • Pull the coolant bottle up and out
  2. step : Installing the Coolant Bottle (2:03)
    • Lower the coolant bottle into place
    • Clip the relay box into place
    • Insert the two 8mm bolts into the coolant bottle
    • Loosen the lower hose clamp with a flat blade screwdriver if necessary
    • Push the lower hose onto the coolant bottle
    • Tighten the hose clamp with pliers
    • Push the upper hose onto the coolant bottle
    • Tighten the hose clamp with pliers
  3. step : Filling the Coolant Bottle (3:46)
    • Twist off the coolant bottle cap
    • Add coolant to a level between the cold fill lines
    • Twist on the coolant bottle cap
    • Periodically check the coolant level
    • Add coolant as necessary

Tools needed for replacement:

    General Tools

  • Drain Pan

  • Pliers, Cutters & misc Wrenches

  • Slip-Joint Pliers
  • Needle nose pliers
  • Vise Grip Pliers

  • Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 8mm Socket

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How-to Video:

(04:33 min)

Tools List:

    General Tools

  • Drain Pan

  • Pliers, Cutters & misc Wrenches

  • Slip-Joint Pliers
  • Needle nose pliers
  • Vise Grip Pliers

  • Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 8mm Socket



This part replaces:

  • OE # 5L3Z8A080AA
  • Dorman 603-028

Vehicle Fit

  • 2003-2006 Ford Expedition Radiator Overflow Bottle with Cap Dorman 603-028
  • 2004 Ford F150 Truck New Body Style Radiator Overflow Bottle with Cap Dorman 603-028
  • 2005-2008 Ford F150 Truck Radiator Overflow Bottle with Cap Dorman 603-028
  • 2006-2008 Lincoln Mark LT Radiator Overflow Bottle with Cap Dorman 603-028
  • 2003-2006 Lincoln Navigator Radiator Overflow Bottle with Cap Dorman 603-028
Only 2 left in stock
Part #: 1AROB00220

Ships Same Day for orders placed by 4 P.M. ET

Dorman
Brand #: 603-028

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