OE Quality
60-Day Returns

Dayco 73150 Radiator Coolant Hose - Lower
Overview of Dayco Curved Radiator Hose 73150 for Toyota Highlander
The Dayco Curved Radiator Hose 73150 is designed specifically for Toyota Highlander models, providing reliable coolant flow and engine temperature regulation. Made from durable EPDM material, this black radiator coolant hose ensures consistent performance under various operating conditions.
- Constructed from high-quality EPDM material for heat and chemical resistance
- Black color with a curved design for precise fitment
- End 1 and End 2 inside diameter: 1 5/16 inches
- End 1 and End 2 outside diameter: 1 11/16 inches
- Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Single inside diameter hose type
- Trunk height measures 10 1/2 inches
- Does not include heat shield or protective sleeve
Details on the Curved Radiator Hose Product Line
The Dayco Curved Radiator Hose line focuses on delivering hoses with precise bends and dimensions to match specific vehicle cooling system requirements. This product line is engineered to maintain coolant flow efficiency while fitting tightly within the engine bay, reducing the risk of leaks or hose failure. The 73150 part number is part of this line, tailored for the Toyota Highlander to ensure compatibility and durability.
Technical Description and Specifications
The Dayco 73150 radiator coolant hose is manufactured from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1 5/16 inches and an outside diameter of 1 11/16 inches, making it a single inside diameter hose designed to fit securely on the radiator and engine fittings. The hose meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it adheres to industry requirements for coolant hoses. The trunk height of 10 1/2 inches accommodates the specific routing needed in the Toyota Highlander cooling system. This hose does not include a heat shield or protective sleeve, so it is intended for applications where additional protection is not required.
Common Applications and Problem Solving
- Replacement of worn or cracked radiator coolant hoses in Toyota Highlander vehicles
- Resolving coolant leaks caused by hose degradation or damage
- Maintaining proper engine temperature by ensuring efficient coolant flow
- Preventing overheating issues related to faulty or deteriorated radiator hoses
- Supporting cooling system integrity during routine maintenance or repairs
Installation Notes and Tips
When installing the Dayco Curved Radiator Hose 73150, ensure the engine is cool to avoid burns or injury. Verify that the hose dimensions match the original equipment specifications for the Toyota Highlander. Use appropriate clamps to secure the hose ends firmly to prevent leaks. Inspect adjacent components for wear or damage during installation, and replace if necessary. Avoid twisting or stretching the hose excessively to maintain its structural integrity.
Quality Assurance and Warranty
Dayco manufactures the Curved Radiator Hose 73150 to meet strict SAE specifications, ensuring reliable performance and durability. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and longevity. Using this hose helps maintain the cooling system's efficiency and supports the overall reliability of the Toyota Highlander.
| Brand | Dayco |
| Part Number | 73150 |
| Position | Curved Radiator Hose, Lower |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 1 5/16 |
| End 2 Inside Diameter | 1 5/16 |
| Contains Heat Shield | N |
| Contains Protective Sleeve | N |
| End 1 Outside Diameter | 1 11/16 |
| End 2 Outside Diameter | 1 11/16 |
| Hose Type | Single i.d. hose |
| SAE Specification | Sae j20r4 class d-1, sae j1684 type ec |
| Trunk Height | 10 1/2 |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2013 | Toyota | Highlander | 2.7L | L4 | Lower | Curved Radiator Hose |
| 2012 | Toyota | Highlander | 2.7L | L4 | Lower | Curved Radiator Hose |
| 2011 | Toyota | Highlander | 2.7L | L4 | Lower | Curved Radiator Hose |
| 2010 | Toyota | Highlander | 2.7L | L4 | Lower | Curved Radiator Hose |
| 2009 | Toyota | Highlander | 2.7L | L4 | Lower | Curved Radiator Hose |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.