OE Quality
60-Day Returns

Dayco 72003 Radiator Coolant Hose - Lower
Overview of Dayco Curved Radiator Hose 72003
The Dayco Curved Radiator Hose 72003 is designed for reliable coolant flow in select Acura and Honda vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance in the cooling system of models like the Accord, CL, Odyssey, and TL.
- Constructed from high-quality EPDM for heat and chemical resistance
- Black color with a curved design for precise fitment
- Both ends have a 1 1/4 inch inside diameter for uniform coolant flow
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Single inside diameter hose type for straightforward installation
- Trunk height of 20 for proper clearance and routing
Detailed Product Description
The Dayco Curved Radiator Hose 72003 is part of the Curved Radiator Hose product line, which focuses on delivering hoses shaped to fit specific vehicle cooling system layouts. This hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for the demanding environment under the hood. The hose’s black color and curved design allow it to integrate seamlessly into the cooling system of Acura and Honda vehicles, specifically the Accord, CL, Odyssey, and TL models. Both ends feature a consistent 1 1/4 inch inside diameter, ensuring a secure and leak-free connection. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant applications.
Compatible Vehicles and Common Applications
- Replacement radiator coolant hose for Acura Accord, CL, Odyssey, and TL
- Addresses issues such as coolant leaks, hose cracks, and swelling
- Helps maintain proper coolant flow and engine temperature regulation
- Suitable for vehicles requiring a curved radiator hose with 1 1/4 inch diameter ends
Installation Notes and Tips
When installing the Dayco Curved Radiator Hose 72003, ensure the engine is cool to prevent burns or injury. Verify that the hose routing matches the original to avoid kinks or interference with other engine components. Use appropriate clamps to secure both ends firmly, and inspect the cooling system for any additional wear or damage during replacement. Proper installation will help maintain optimal coolant circulation and prevent premature hose failure.
Quality Assurance and Warranty
Dayco manufactures the Curved Radiator Hose 72003 to meet stringent SAE specifications, ensuring durability and performance in automotive cooling systems. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and reliability. Users should consult the product packaging or manufacturer resources for warranty information.
| Brand | Dayco |
| Part Number | 72003 |
| Position | Curved Radiator Hose, Lower |
| Color | Black |
| End 1 Inside Diameter | 1 1/4 |
| End 2 Inside Diameter | 1 1/4 |
| Hose Type | Single I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 20 |
This part fits 22 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2004 | Honda | Odyssey | Lower | Curved Radiator Hose | ||
| 2003 | Acura | CL | Lower | Curved Radiator Hose | ||
| 2003 | Acura | TL | Lower | Curved Radiator Hose | ||
| 2003 | Honda | Odyssey | Lower | Curved Radiator Hose | ||
| 2002 | Acura | CL | Lower | Curved Radiator Hose | ||
| 2002 | Acura | TL | Lower | Curved Radiator Hose | ||
| 2002 | Honda | Accord | 3.0L | V6 | Lower | Curved Radiator Hose |
| 2002 | Honda | Odyssey | Lower | Curved Radiator Hose | ||
| 2001 | Acura | CL | Lower | Curved Radiator Hose | ||
| 2001 | Acura | TL | Lower | Curved Radiator Hose | ||
| 2001 | Honda | Accord | 3.0L | V6 | Lower | Curved Radiator Hose |
| 2001 | Honda | Odyssey | Lower | Curved Radiator Hose | ||
| 2000 | Acura | TL | Lower | Curved Radiator Hose | ||
| 2000 | Honda | Accord | 3.0L | V6 | Lower | Curved Radiator Hose |
| 2000 | Honda | Odyssey | 3.5L | V6 | Lower | Curved Radiator Hose |
| 1999 | Acura | CL | 3.0L | V6 | Lower | Curved Radiator Hose |
| 1999 | Acura | TL | Lower | Curved Radiator Hose | ||
| 1999 | Honda | Accord | 3.0L | V6 | Lower | Curved Radiator Hose |
| 1999 | Honda | Odyssey | Lower | Curved Radiator Hose | ||
| 1998 | Acura | CL | 3.0L | V6 | Lower | Curved Radiator Hose |
| 1998 | Honda | Accord | 3.0L | V6 | Lower | Curved Radiator Hose |
| 1997 | Acura | CL | 3.0L | V6 | Lower | 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.