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Dayco 72303 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper
Overview of Dayco Curved Radiator Hose 72303
The Dayco Curved Radiator Hose 72303 is designed for reliable coolant flow in select Nissan, Infiniti, and Toyota vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance in demanding engine environments.
- Constructed from high-quality EPDM for heat and chemical resistance
- Black single inside diameter hose with 1 5/16 inch ends
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Curved design tailored for specific radiator connections
- Compatible with Nissan Armada, Pathfinder Armada, QX56, Titan, and Toyota Tundra
Detailed Product Description
The Dayco Curved Radiator Hose 72303 is part of the Curved Radiator Hose product line, which focuses on delivering precise fit and durability for radiator coolant systems. This hose features a single inside diameter of 1 5/16 inches on both ends, ensuring a secure and leak-resistant connection. Made from EPDM (ethylene propylene diene monomer), the hose offers excellent resistance to heat, ozone, and coolant chemicals, making it suitable for extended use in automotive cooling systems. The black color and curved shape facilitate installation in tight engine compartments without compromising coolant flow.
Compatible Vehicles and Applications
- Designed for use in Nissan Armada and Pathfinder Armada models
- Compatible with Infiniti QX56
- Fits Nissan Titan and Toyota Tundra trucks
- Ideal for radiator coolant system repairs and replacements
- Addresses issues related to coolant leaks and hose deterioration
Installation Notes and Tips
- Ensure the engine is cool before removing the old radiator hose
- Check hose clamps and radiator fittings for wear or damage
- Verify the hose orientation matches the curved design for proper fit
- Use appropriate tools to avoid damaging the hose during installation
- Inspect coolant levels and system pressure after installation
Quality Assurance and Warranty
Dayco manufactures the Curved Radiator Hose 72303 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for radiator coolant hoses. While specific warranty details are not provided, Dayco products typically undergo rigorous quality control to maintain reliability and performance in automotive cooling systems.
| Brand | Dayco |
| Part Number | 72303 |
| Position | Curved Radiator Hose, Lower |
| Color | Black |
| End 1 Inside Diameter | 1 5/16 |
| End 2 Inside Diameter | 1 5/16 |
| Hose Type | Single I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 15 |
This part fits 39 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2015 | Nissan | Armada | Lower | Curved Radiator Hose | ||
| 2015 | Nissan | TITAN | Lower | Curved Radiator Hose | ||
| 2014 | Nissan | Armada | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2014 | Nissan | TITAN | Lower | Curved Radiator Hose | ||
| 2014 | Toyota | Tundra | 4.0L | V6 | Upper | Curved Radiator Hose |
| 2013 | Nissan | Armada | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2013 | Nissan | TITAN | Lower | Curved Radiator Hose | ||
| 2013 | Toyota | Tundra | 4.0L | V6 | Upper | Curved Radiator Hose |
| 2012 | Nissan | Armada | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2012 | Nissan | TITAN | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2012 | Toyota | Tundra | 4.0L | V6 | Upper | Curved Radiator Hose |
| 2011 | Nissan | Armada | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2011 | Nissan | TITAN | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2011 | Toyota | Tundra | 4.0L | V6 | Upper | Curved Radiator Hose |
| 2010 | INFINITI | QX56 | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2010 | Nissan | Armada | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2010 | Nissan | TITAN | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2010 | Toyota | Tundra | 4.0L | V6 | Upper | Curved Radiator Hose |
| 2009 | INFINITI | QX56 | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2009 | Nissan | Armada | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2009 | Nissan | TITAN | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2009 | Toyota | Tundra | 4.0L | V6 | Upper | Curved Radiator Hose |
| 2008 | INFINITI | QX56 | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2008 | Nissan | Armada | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2008 | Nissan | TITAN | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2008 | Toyota | Tundra | 4.0L | V6 | Upper | Curved Radiator Hose |
| 2007 | INFINITI | QX56 | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2007 | Nissan | Armada | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2007 | Nissan | TITAN | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2007 | Toyota | Tundra | 4.0L | V6 | Upper | Curved Radiator Hose |
| 2006 | INFINITI | QX56 | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2006 | Nissan | Armada | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2006 | Nissan | TITAN | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2005 | INFINITI | QX56 | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2005 | Nissan | Armada | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2005 | Nissan | TITAN | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2004 | INFINITI | QX56 | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2004 | Nissan | Pathfinder Armada | Lower - Pipe To Radiator | Curved Radiator Hose | ||
| 2004 | Nissan | TITAN | Lower - Pipe To Radiator | Curved Radiator Hose |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.