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Dayco 71148 Radiator Coolant Hose - Upper
| Brand | Dayco 71148 |
|---|---|
| Position | Upper |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 1 5/16 |
| End 2 Inside Diameter | 1 5/16 |
| Contains Heat Shield | N |
| Contains Protective Sleeve | Y |
| Hose Type | Single i.d. hose |
| SAE Specification | Sae j20r4 class d-1, sae j1684 type ec |
| Trunk Height | 19 3/4 |
| Fits | — |
Curved radiator hose. Single I.D. hose for a straightforward coolant line replacement.
EPDM construction. Built to handle heat and coolant exposure in demanding conditions.
Protective sleeve included. Adds extra abrasion resistance where the hose needs it most.
Cross-references ACDelco 24140L, AutoZone C1351 and Beck/Arnley 142-5840 for the same application. See all 13.
Dayco 71148 Curved Radiator Hose Overview
The Dayco 71148 curved radiator hose is a radiator coolant hose built from EPDM for dependable coolant transfer in the engine cooling system. Its 1 5/16-inch inside diameter at both ends and curved single I.D. design make it a direct-style replacement for select applications, including Nissan and Datsun models that use this hose size.
Dayco’s Curved Radiator Hose line is engineered for routing where a formed hose is needed to follow the factory path without unnecessary stress on the cooling system. The 71148 includes a protective sleeve for added abrasion resistance in routed areas.
Key Features
- EPDM construction for coolant-system durability
- Black finish for OE-style appearance
- 1 5/16-inch inside diameter at both ends
- Curved single I.D. hose design
- Protective sleeve included for added surface protection
- Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
Detailed Product Description
Dayco 71148 is a curved radiator coolant hose designed for vehicles that require a formed hose with matching 1 5/16-inch end diameters. The EPDM rubber construction is suited for cooling-system service, while the protective sleeve helps guard the hose in areas where routing passes near adjacent components. This hose is a practical replacement choice for Nissan and Datsun cooling-system service when the original hose profile and size are required.
This part cross-references Gates 21351 for the same application.
Common Cooling System Issues It Can Address
- Cracked or aged radiator hose material
- Coolant seepage at hose connections
- Collapsed or softened hose sections
- Improper hose routing from a worn or misshaped original hose
- Surface wear in routed areas near engine components
Installation Notes and Tips
Before installation, verify the hose diameter, curvature, and routing path against the original part. Inspect hose necks, clamps, and nearby fittings for corrosion or damage before placing the new hose. Confirm the hose is seated fully on both ends and routed without twist or contact points that could cause abrasion.
For fitment-focused searches, this hose is commonly referenced for Nissan and Datsun radiator hose replacement needs where a 1 5/16-inch curved coolant hose is specified. Dayco 71148 is also searched as a replacement radiator hose for select Nissan cooling-system applications.
Quality Assurance
This hose is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC standards, supporting consistent material and performance requirements for coolant hose service.
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