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OE Quality
60-Day Returns
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DormanPart #: 902-5123XD
Dorman 902-5123XD Engine Coolant Thermostat Housing Assembly
⚙️ 6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$62.01Free 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, RX330 and Sienna
🔄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? Click here for all Engine Coolant Thermostat Housing Assembly options
Dorman 902-5123XD Engine Coolant Thermostat Housing Assembly
| Brand | Dorman |
| Part Number | 902-5123XD |
| Material | Aluminio, goma |
| Material | Aluminum |
| Material | Rubber |
| Color | Black |
| Color | Natural |
| Color | Natural, negro |
| Inside Diameter | 29 |
| Mounting Hardware Included | No |
| Mounting Hardware Included | Non |
| Grade Type | Reemplazo estándar |
| Grade Type | Standard replacement |
| Gasket Or Seal Included | Oui |
| Gasket Or Seal Included | Sí |
| Gasket Or Seal Included | Yes |
| Mounting Hole Quantity | 1 |
| Mounting Hole Quantity | 1 ensamble de manguera del calentador |
| Bolt Hole Center To Bolt Hole Center | 65 |
| Gasket Type | Gasket |
| Gasket Type | Junta |
| Flange Length | 78 |
| Flange Thickness | 10 |
| Flange Width | 78 |
| Outlet Port Quantity | 1 |
| Outlet Port Quantity | 1 ensamble de manguera del calentador |
| Bleeder Hole | No |
| Bleeder Hole | Non |
| Contenidos del paquete | 1 empaque |
| Contenidos del paquete | 1 ensamble de la caja |
| Contenidos del paquete | 1 termostato |
| Package Contents | 1 gasket |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Lexus | RX330 | 3.3L | V6 | N/A | One Piece Design |
| 2006 | Toyota | Sienna | 3.3L | V6 | N/A | Includes Thermostat |
| 2005 | Lexus | RX330 | 3.3L | V6 | N/A | One Piece Design |
| 2005 | Toyota | Sienna | 3.3L | V6 | N/A | Includes Thermostat |
| 2004 | Lexus | RX330 | 3.3L | V6 | N/A | One Piece Design |
| 2004 | Toyota | Sienna | 3.3L | V6 | N/A | Includes Thermostat |
* 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:
281-180CH2123
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.