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Dayco 71755 Radiator Coolant Hose - Upper
| Brand | Dayco 71755 |
|---|---|
| Position | Upper |
| 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 | 25 |
| Product line | Curved Radiator Hose |
| Fits | Buick · 2 vehicles |
EPDM construction. Resists heat and coolant exposure for dependable hose performance.
Single I.D. hose. Provides a consistent inside diameter for steady coolant flow.
Curved radiator hose. Formed to route coolant smoothly through the cooling system.
Cross-references ACDelco 26060X, CARQUEST 21189 and Duralast E71755 for the same application. See all 7.
Dayco 71755 Curved Radiator Hose
Dayco 71755 is a curved radiator coolant hose built for upper cooling-system routing on select Buick Regal applications. Made from EPDM and finished in black, it provides a direct-fit replacement for the original hose shape and 1 1/4 in. inside diameter at both ends.
Compatible with 1986-1987 Buick Regal, upper radiator hose applications, this Dayco Curved Radiator Hose line is engineered for straightforward OE-style service replacement. The curved profile helps match factory routing, while the SAE J20R4 Class D-1 and SAE J1684 Type EC specifications support cooling-system hose requirements.
Key Features
- Part number 71755 for upper radiator coolant hose replacement
- EPDM construction for cooling-system durability
- Black finish for a factory-style appearance
- 1 1/4 in. inside diameter at both ends
- Single I.D. hose design for direct coolant routing
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Compatible with 1986-1987 Buick Regal, upper
Product Details
This Dayco Curved Radiator Hose is intended for upper radiator coolant routing where the hose must follow a curved path between connection points. The EPDM rubber construction is commonly used in cooling systems for its resistance to heat and coolant exposure, and the matched 1 1/4 in. end diameters support a secure fit on the specified application. Dayco 71755 is also cross-referenced with ACDelco 26060X for the same application.
What It Helps Address
- Cracked or split upper radiator hose material
- Coolant leaks at the hose connection points
- Collapsed or softened hose sections from age and heat
- Incorrect hose routing on 1986-1987 Buick Regal upper cooling-system service
- Replacement needs for an OE-style curved radiator hose
Installation Notes
Verify hose routing, end diameter, and position before installation. This hose is specified for the upper radiator location on 1986-1987 Buick Regal models, so confirm the original routing matches the curved profile and 1 1/4 in. connections. Inspect clamps, necks, and adjacent cooling-system components for wear before reassembly.
Quality Assurance
Dayco manufactures this hose to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for cooling-system service. The part number 71755 is listed as an OE-style replacement for the confirmed Buick Regal fitment shown above.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1987 | Buick | Regal | 3.8L | V6 | Upper | OEM Replacement; Curved Radiator Hose |
| 1986 | Buick | Regal | 3.8L | V6 | Upper | OEM Replacement; Curved Radiator Hose |
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