1997-99 Thermostat Housing - 1AEMX00045

Warranty & Shipping
Product Reviews
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 with screw in 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

Attention California Customers:

WARNING: Cancer and Reproductive Harm -

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
2 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Worked well. the old one was cracked. Car is running great Thank you
August 25, 2017
Satisfied customer!.
The part came before the squedule date, excelent fit .Price and quality; I just finished the installation, basically I spend more time installing the hoses. especially the Bypass hose from the rear to the heater . of course I did it without removing the upper intake manifold....{old mecanic here ):-) and Definitly yes!! I will buy more parts from You Guys! sincerely ..Robert.
October 9, 2018
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Year Make Model Description
1997-1999Ford Explorer Ford Explorer Thermostat Housing (Built Before 7/24/00 Production Date) V6 4.0L
1997-1999Mercury Mountaineer Mercury Mountaineer Thermostat Housing (Built Before 7/24/00 Production Date) V6 4.0L
Part #: 1AEMX00045

Order must be placed by 4pm ET
Delivery options for:

Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

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