OE Quality
60-Day Returns

Dayco 71217 Radiator Coolant Hose - Lower or Upper - Radiator To Pipe
Durable Radiator Coolant Hose for Buick, Cadillac, and Oldsmobile
The Dayco Curved Radiator Hose 71217 is engineered to provide reliable coolant flow for select Buick, Cadillac, and Oldsmobile models. Designed with precision to meet specific vehicle requirements, this radiator coolant hose ensures proper fit and function in Eldorado, Riviera, Seville, and Toronado vehicles.
- Constructed from EPDM material for heat and chemical resistance
- Dual inside diameter design with 1 9/16 inch and 1 13/16 inch ends
- Black color for standard OEM appearance
- Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Trunk height of 14 1/2 inches for accurate fitment
About the Dayco Curved Radiator Hose Product Line
The Curved Radiator Hose line by Dayco focuses on delivering hoses that match the original equipment specifications for curvature and dimensions. This ensures optimal coolant flow and fitment in vehicles requiring non-linear hose routing. The 71217 part is a dual inside diameter hose designed to accommodate different connection sizes at each end, supporting proper installation in complex cooling systems.
Product Details and Specifications
This radiator coolant hose is made from EPDM, a synthetic rubber known for its durability against heat, ozone, and coolant chemicals. The dual inside diameter ends measure 1 9/16 inches and 1 13/16 inches respectively, allowing it to connect different sized fittings securely. The hose is black in color and does not include a heat shield or protective sleeve. It meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses. The trunk height of 14 1/2 inches is designed to fit the routing path in compatible vehicles.
Compatible Vehicles and Common Applications
- Replacement radiator coolant hose for Buick Eldorado models
- Suitable for Cadillac Riviera and Seville cooling systems
- Fits Oldsmobile Toronado radiator hose connections
- Addresses coolant leaks due to hose wear or cracking
- Resolves overheating issues caused by compromised coolant flow
Installation Notes and Tips
Ensure the engine is cool before removing the old radiator hose to prevent burns. Verify the hose ends match the vehicle’s radiator and engine fittings by checking the inside diameters. Use appropriate clamps to secure the hose ends and inspect for any signs of wear or damage on adjacent components during installation. Proper routing is essential to avoid kinks or interference with moving parts.
Quality Assurance and Warranty
Dayco manufactures this Curved Radiator Hose 71217 to meet strict SAE specifications, providing confidence in material quality and performance. While specific warranty details are not provided, Dayco products typically adhere to industry standards for durability and reliability in automotive cooling systems.
| Brand | Dayco |
|---|---|
| Part Number | 71217 |
| Position | Curved Radiator Hose, Upper - Radiator To Pipe and Lower |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 1 9/16 |
| End 2 Inside Diameter | 1 13/16 |
| 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 | 14 1/2 |
This part fits 41 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1985 | Buick | Riviera | 5.0L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1985 | Buick | Riviera | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1985 | Cadillac | Eldorado | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1985 | Cadillac | Seville | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1985 | Oldsmobile | Toronado | 5.0L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1985 | Oldsmobile | Toronado | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1984 | Buick | Riviera | 5.0L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1984 | Buick | Riviera | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1984 | Cadillac | Eldorado | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1984 | Cadillac | Seville | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1984 | Oldsmobile | Toronado | 5.0L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1984 | Oldsmobile | Toronado | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1983 | Buick | Riviera | 5.0L | V8 | Lower | Curved Radiator Hose |
| 1983 | Buick | Riviera | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1983 | Cadillac | Eldorado | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1983 | Cadillac | Seville | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1983 | Oldsmobile | Toronado | 5.0L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1983 | Oldsmobile | Toronado | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1982 | Buick | Riviera | 5.0L | V8 | Lower | Curved Radiator Hose |
| 1982 | Buick | Riviera | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1982 | Cadillac | Eldorado | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1982 | Cadillac | Seville | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1982 | Oldsmobile | Toronado | 5.0L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1982 | Oldsmobile | Toronado | 5.7L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1981 | Buick | Riviera | 5.0L | V8 | Lower | Curved Radiator Hose |
| 1981 | Buick | Riviera | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1981 | Cadillac | Eldorado | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1981 | Cadillac | Seville | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1981 | Oldsmobile | Toronado | 5.0L | V8 | Lower | Curved Radiator Hose |
| 1981 | Oldsmobile | Toronado | 5.7L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1980 | Buick | Riviera | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1980 | Buick | Riviera | 5.0L | V8 | Lower | Curved Radiator Hose |
| 1980 | Buick | Riviera | 5.7L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1980 | Cadillac | Eldorado | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1980 | Cadillac | Seville | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1980 | Oldsmobile | Toronado | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1980 | Oldsmobile | Toronado | 5.0L | V8 | Lower | Curved Radiator Hose |
| 1980 | Oldsmobile | Toronado | 5.7L | V8 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1979 | Buick | Riviera | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1979 | Cadillac | Eldorado | 5.7L | V8 | Lower | Curved Radiator Hose |
| 1979 | Oldsmobile | Toronado | 5.7L | V8 | 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.