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Dayco 71445 Radiator Coolant Hose - Lower - Pipe To Engine
| Brand | Dayco 71445 |
|---|---|
| Position | Lower - Pipe To Engine |
| 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 | 13 1/4 |
| Product line | Curved Radiator Hose |
| Fits | Nissan · 2 vehicles |
Curved hose design. Helps route coolant smoothly with a cleaner, more efficient path.
EPDM construction. Built from durable rubber for dependable cooling-system service.
SAE-rated hose. Meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards.
Cross-references ACDelco 24233L, CARQUEST 21780 and Datsun/Nissan 21503-40F65 for the same application. See all 7.
Dayco 71445 Curved Radiator Hose
Dayco 71445 is a curved radiator coolant hose built for the cooling system on select Nissan applications. Made from EPDM rubber with a black finish, it is shaped for the lower pipe-to-engine routing used on 1989-1990 Nissan 240SX models.
The Dayco Curved Radiator Hose line focuses on application-specific hose geometry and OE-style cooling system fitment. This Dayco 71445 hose follows the curved routing needed for the lower radiator connection, helping maintain proper coolant flow path in the engine bay.
Key Features
- Part number: 71445
- Curved radiator coolant hose for lower pipe-to-engine placement
- EPDM construction for cooling system service
- Black hose finish
- Single I.D. hose design
- 1 5/16 in. inside diameter at both ends
- Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Compatible with 1989-1990 Nissan 240SX, lower - pipe to engine
Detailed Description
This radiator hose is engineered for direct cooling system routing on the 1989-1990 Nissan 240SX. The curved profile and matching 1 5/16 in. end diameters support the lower hose connection between the pipe and engine, while the EPDM material is suited for coolant service and underhood temperature exposure. If you are replacing a worn or leaking lower radiator hose on a Nissan 240SX, Dayco 71445 provides the correct shape and size for the listed application. This part cross-references Duralast C71445 for the same application.
Common Uses
- Replacing a cracked or softened lower radiator hose
- Repairing coolant leaks at the pipe-to-engine connection
- Restoring proper hose routing in the cooling system
- Addressing swelling, splitting, or collapse in an aging hose
- Servicing a 1989-1990 Nissan 240SX cooling system
Installation Notes and Tips
Verify hose routing and end diameters before installation to confirm the correct lower hose application. Inspect the mating pipe, engine neck, and clamps for corrosion or wear before installing the new hose. Make sure the hose is seated fully and routed without twist or contact with hot or moving components.
Quality Assurance
Dayco manufactures this hose to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for radiator hose service. The Dayco 71445 is a fitment-specific replacement for select Nissan cooling system applications, including the 1989-1990 Nissan 240SX.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1990 | Nissan | 240SX | Lower - Pipe To Engine | Curved Radiator Hose |
| 1989 | Nissan | 240SX | Lower - Pipe To Engine | Curved Radiator Hose |
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