Description
Warranty & Shipping
Product Reviews
Q&A
Vehicle Fit

If your vehicle is leaking coolant around the thermostat, or your thermostat housing cooling outlet is broken or cracked, this could be your solution.

Kit Specifications:

  • Direct replacement
  • Replaces dealer part numbers: YU3Z 8A586 AA, YU3Z8A586AA
  • Kit contains:
    • (1) Thermostat housing / Cooling Outlet
    • (1) O-Ring
    • (1) Thermostat
    • (1) Thermostat outlet or neck
  • Built to strict quality control standards
  • Plastic construction
  • Fits the following Ford engines as listed per application:
    • V6 4.0L
  • Electrical sensors are not included. Buyer will need to reuse original sensors.
    • Correct only for models clip-in style coolant sensor

Over time from thermal expansion and contraction the mating surfaces on the housing can warp or crack. If you are experiencing any of these issues replace your thermostat housing/ cooling outlet with our direct replacement part.

Item Condition: New

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

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.

5.00/ 5.0
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2011 Ford Ranger Thermostat housing
The part was a perfect fit. Your price was unmatched by other suppliers.
September 23, 2017
Minor leak now corrected
Finally stopped my minor coolant leak! Discovered a coolant leak after replacing the thermostat about 4 months ago. Couldnt determine source of minor leak but noted it was gradually draining my reservoir. This replacement was relatively easy to install but it did require patience and finesse. The design of other vehicle components was the problem not this part from 1A-Auto.
October 13, 2017
thermostat housing
product fit and no more smelly leaksgreat product cheap price
August 5, 2018
Will this fit my car? Add a vehicle to make sure
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Year Make Model Description
2001Ford Explorer Ford Explorer Thermostat Housing V6 4.0L
2001-2006Ford Explorer Sport Trac Ford Explorer Sport Trac Thermostat Housing V6 4.0L
2001-2011Ford Ranger Ford Ranger Thermostat Housing V6 4.0L
2001-2008Mazda B4000 Truck Mazda B4000 Truck Thermostat Housing
2000-2001Mercury Mountaineer Mercury Mountaineer Thermostat Housing V6 4.0L
Part #: 1AEMX00328


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout