Thermostat Housing Dorman 902-5124 - 1ACTH00008

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Vehicle Fit


  • Plastic construction
  • Direct replacement
  • Built to strict quality control standards

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Nickel (Metallic), which is known to the State of California to cause cancer. For more information, go to

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.

  1. step : Draining the Coolant (0:24)
    • Remove the 10mm bolts from the splash shield underneath the bumper
    • Remove the lower splash shield
    • Open the radiator
    • Drain the coolant into a bucket
    • Remove the radiator cap
    • Remove the 10mm bolts from the intake tube
    • Remove the intake tube
  2. step : Removing the Thermostat (2:23)
    • Loosen the hose clamp
    • Remove the coolant hose from the thermostat housing
    • Remove the 10mm nuts from the housing
    • Pull the thermostat straight out
  3. step : Installing the Thermostat (4:34)
    • Press the thermostat into the housing
    • Press the housing onto the thermostat
    • Tighten the 10mm nuts to the housing
    • Place the hose on the housing
    • Tighten the hose clamp
  4. step : Refilling the Coolant (5:46)
    • Slide the intake tube into place
    • Tighten the 10mm bolts
    • Close the radiator drain plug
    • Insert the splash shield into place
    • Tighten the 10mm bolts to the splash shield
    • Insert a funnel into the radiator hole
    • Top the radiator off with the correct coolant
    • Turn the heat on
    • Start the car
    • Let the engine idle and bleed any air
    • Remove the funnel

Tools needed for replacement:

    General Tools

  • Funnel
  • Drain Pan

  • Materials, Fluids, and Supplies

  • Rust Penetrant
  • Paper Towels
  • Cloth Rags
  • Anti-Freeze

  • Pliers, Cutters & misc Wrenches

  • Needle nose pliers

  • Ratchets & Related

  • Socket Extensions
  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 10mm Socket

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Year Make Model Description
2010-2012Lexus HS250h Lexus HS250h Thermostat Housing Dorman 902-5124
2011-2015Scion xB Scion xB Thermostat Housing Dorman 902-5124
2002-2011Toyota Camry Toyota Camry Thermostat Housing L4 2.4L Dorman 902-5124
2009-2013Toyota Corolla Toyota Corolla Thermostat Housing L4 2.4L Dorman 902-5124
2002-2007Toyota Highlander Toyota Highlander Thermostat Housing L4 2.4L Dorman 902-5124
2009-2013Toyota Matrix Toyota Matrix Thermostat Housing L4 2.4L Dorman 902-5124
2006-2008Toyota Rav4 Toyota Rav4 Thermostat Housing L4 2.4L Dorman 902-5124
2002-2008Toyota Solara Toyota Solara Thermostat Housing L4 2.4L Dorman 902-5124
Only 2 left in stock
Part #: 1ACTH00008

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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Brand #: 902-5124

How-to Video:

(07:43 min)