| Part Number | Description | Qty |
|---|---|---|
| 16571-31170 | Genuine OEM Upper Radiator Hose (No. 1) | 1 |
| 16572-31250 | Genuine OEM Lower Radiator Hose (No. 2) | 1 |
This Genuine OEM Lexus Upper and Lower Radiator Hose Set includes two original equipment radiator hoses designed for compatible Lexus IS250 and IS350 cooling systems.
Radiator hoses carry engine coolant between the radiator and engine cooling system. The correct hose shape, size, and connection points are important for proper installation and coolant circulation.
This set is ideal for customers replacing both the upper and lower radiator hoses during cooling system maintenance or repair.
Genuine OEM parts are designed according to the vehicle manufacturer's original equipment specifications.
| Brand | Lexus Genuine OEM |
| Product Type | Engine Cooling System Radiator Hose Set |
| Upper Hose | 16571-31170 |
| Lower Hose | 16572-31250 |
| Total Quantity | 2 Pieces |
| Vehicle Make | Lexus |
| Vehicle Models | IS250 / IS350 (Selected Configurations) |
| Fitment Verification | VIN and Production Date Required |
The following applications are listed for these radiator hose part numbers. Fitment is limited to applicable engine and production configurations.
| Make | Model | Years | Engine |
|---|---|---|---|
| Lexus | IS250 Sedan | 2006–2012* | 2.5L V6 (4GR-FSE) |
| Lexus | IS350 Sedan | 2006–2012* | 3.5L V6 (2GR-FSE) |
| Lexus | IS250 C Convertible | 2010–2012* | 2.5L V6 (4GR-FSE) |
| Lexus | IS350 C Convertible | 2010–2012* | 3.5L V6 (2GR-FSE) |
*For 2012 model-year vehicles, these part numbers are generally associated with production dates before the November 2011 parts change. Some later-production vehicles use different hoses.
Later catalog applications may specify 16571-31171 (upper) and 16572-31251 (lower).
Please verify compatibility using your VIN before purchasing. Year, model, and engine size alone do not guarantee a fit.
Welcome to Spare Parts Experts! We specialize in genuine OEM automotive parts and offer original-equipment components for vehicle maintenance and repair.
We sell only Genuine OEM parts. Our goal is to help customers find the correct original replacement components for their vehicles.
Questions about fitment? Please contact us before placing your order. Providing your VIN can help identify the correct part numbers.