OE Quality
60-Day Returns

Dayco 72120 Radiator Coolant Hose - Upper
Overview of Dayco Curved Radiator Hose 72120
The Dayco Curved Radiator Hose 72120 is designed to provide reliable coolant flow in automotive cooling systems. Constructed from durable EPDM material, this dual inside diameter hose supports efficient heat resistance and flexibility for various vehicle applications.
- Made from high-quality EPDM rubber for heat and chemical resistance
- Dual inside diameters: 1 3/4 inches and 2 inches for versatile fitment
- Black color for standard OEM appearance
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Curved design to accommodate specific radiator hose routing
- Trunk height of 16 inches for proper clearance and fit
Details on the Curved Radiator Hose Product Line
The Dayco Curved Radiator Hose line focuses on providing hoses with precise bends and dual inside diameters to match specific radiator and engine configurations. This product line is engineered to maintain coolant system integrity under varying temperature and pressure conditions without the need for additional heat shields or protective sleeves.
Technical Description of Part Number 72120
Part number 72120 is a dual inside diameter radiator coolant hose made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. The hose features a 1 3/4 inch inside diameter on one end and a 2 inch inside diameter on the other, allowing it to connect components with differing sizes. The black hose does not include a heat shield or protective sleeve, relying on the material's inherent durability. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for coolant hoses.
Common Applications and Problem Solving
- Replacement of worn or cracked radiator coolant hoses in vehicles requiring dual inside diameter hoses
- Addressing coolant leaks caused by hose degradation or improper fit
- Maintaining proper coolant flow in curved radiator hose routing setups
- Preventing overheating issues related to compromised coolant hoses
- Ensuring compatibility with vehicles needing hoses meeting SAE J20R4 Class D-1 specifications
Installation Notes and Tips
When installing the Dayco Curved Radiator Hose 72120, ensure the hose is properly seated on radiator and engine fittings matching the 1 3/4 inch and 2 inch inside diameters. Inspect clamps and surrounding components for wear before installation. Avoid twisting the hose during installation to maintain the integrity of the curved design. No additional heat shields or protective sleeves are included or required for this hose.
Quality Assurance and Warranty
Dayco manufactures the Curved Radiator Hose 72120 to meet SAE specifications, ensuring consistent quality and performance. The EPDM material provides resistance to heat and coolant chemicals, contributing to the hose's durability. Warranty details should be confirmed with the vehicle manufacturer or supplier, as Dayco typically supports its products with limited warranties against defects in material and workmanship.
| Brand | Dayco |
|---|---|
| Part Number | 72120 |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 1 3/4 |
| End 2 Inside Diameter | 2 |
| Contains Heat Shield | N |
| Contains Protective Sleeve | N |
| Hose Type | Dual i.d. hose |
| SAE Specification | Sae j20r4 class d-1, sae j1684 type ec |
| Trunk Height | 16 |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|
* 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.