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OE Quality
60-Day Returns
DormanPart #: 902-5212
Dorman 902-5212 Engine Coolant Thermostat Housing Assembly
17 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$85.69Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus and Toyota, Highlander, RX450h, RX450hL, and TX550h+
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? See all Engine Coolant Thermostat Housing Assembly options
Dorman 902-5212 Engine Coolant Thermostat Housing Assembly
| Brand | Dorman |
|---|---|
| Part Number | 902-5212 |
| Material | Plastic |
| Color | Black |
| Inside Diameter | 2.08 |
| Mounting Hardware Included | No |
| Grade Type | Regular |
| Gasket Or Seal Included | Yes |
| Mounting Hole Quantity | 4 |
| Bolt Hole Center To Bolt Hole Center | 2.72 |
| Gasket Type | Gasket |
| Flange Length | 3.25 |
| Flange Thickness | 0.4 |
| Flange Width | 3.25 |
| Outlet Port Quantity | 2 |
| Bleeder Hole | No |
| Package Contents | 1 thermostat housing; 1 thermostat |
| Thermostat Included | Yes |
| Thermostat Opening Temperature | 189 deg. |
This part fits 17 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2025 | Lexus | TX550h+ | 3.5L | V6 | N/A | Includes Thermostat | |
| 2024 | Lexus | TX550h+ | 3.5L | V6 | N/A | Includes Thermostat | |
| 2022 | Lexus | RX450h | 3.5L | V6 | N/A | Includes Thermostat | |
| 2022 | Lexus | RX450hL | 3.5L | V6 | N/A | Includes Thermostat | |
| 2021 | Lexus | RX450h | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. | |
| 2021 | Lexus | RX450hL | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. | |
| 2020 | Lexus | RX450h | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. | |
| 2020 | Lexus | RX450hL | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. | |
| 2019 | Lexus | RX450h | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. | |
| 2019 | Lexus | RX450hL | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. | |
| 2019 | Toyota | Highlander | 3.5L | V6 | ELECTRIC/GAS | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2018 | Lexus | RX450h | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. | |
| 2018 | Lexus | RX450hL | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. | |
| 2018 | Toyota | Highlander | 3.5L | V6 | ELECTRIC/GAS | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2017 | Lexus | RX450h | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. | |
| 2017 | Toyota | Highlander | 3.5L | V6 | ELECTRIC/GAS | N/A | Engine coolant thermostat housing assembly with integrated cover. |
| 2016 | Lexus | RX450h | 3.5L | V6 | N/A | Engine coolant thermostat housing assembly with integrated cover. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
1040-1801603131040
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.