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Dayco 70943 Radiator Coolant Hose
| Brand | Dayco 70943 |
|---|---|
| Position | Lower - Thermostat To Pipe |
| Color | Black |
| End 1 Inside Diameter | 1 3/8 |
| End 2 Inside Diameter | 1 3/8 |
| Hose Type | Single I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 7 |
| Product line | Curved Radiator Hose |
| Fits | Nissan and Fiat · 8 vehicles |
Curved radiator hose. Single I.D. design for a straightforward coolant hose replacement.
EPDM construction. Built to handle coolant service with durable, flexible material.
SAE-rated hose. Meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards.
Cross-references ACDelco 20046S, CARQUEST 20661 and Datsun/Nissan 14055-1E401 for the same application. See all 10.
Dayco Curved Radiator Hose for Nissan Altima
Dayco 70943 is a curved radiator coolant hose built for lower cooling-system routing from the thermostat to the pipe. It uses EPDM construction and a single I.D. hose design with 1 3/8-inch inside diameter ends for a direct replacement on select Nissan Altima applications.
Key Features
- EPDM rubber construction for coolant-system service
- Black finish
- 1 3/8-inch inside diameter at both ends
- Single I.D. hose design
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Curved radiator hose profile for lower thermostat-to-pipe routing
Product Details
This Dayco Curved Radiator Hose line focuses on replacement hoses shaped for specific cooling-system paths, helping maintain proper coolant flow where a formed hose is required. Part number 70943 is listed for 1993-1996 Nissan Altima and 1998-2001 Nissan Altima in the lower thermostat-to-pipe position. This part cross-references Gates 20661 and NAPA 7446 for the same application.
For buyers searching for a Nissan Altima lower radiator hose, thermostat to pipe hose, or Dayco 70943 replacement hose, this part matches the listed fitment and hose dimensions. It is also a practical search match for curved radiator hose replacement on Nissan Altima cooling systems.
Common Issues This Hose Can Address
- Cracked or split lower radiator hose
- Coolant leaks at the thermostat-to-pipe connection
- Softening or swelling from age and heat cycling
- Restricted coolant transfer caused by a deteriorated hose
- Maintenance replacement on aging Nissan Altima cooling systems
Installation Notes and Tips
Verify the hose routing, end diameters, and lower thermostat-to-pipe position before installation. Inspect the mating pipe, thermostat housing, and clamps for wear or corrosion, and replace any damaged sealing surfaces before fitting the new hose. Confirm the hose follows the original curved path without twisting so coolant flow and clearance remain correct.
Quality Assurance
Dayco manufactures this hose to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, supporting consistent material and dimensional requirements for cooling-system service. EPDM construction is selected for radiator hose use in engine coolant environments.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2001 | Nissan | Altima | Lower - Thermostat To Pipe | Curved Radiator Hose |
| 2000 | Nissan | Altima | Lower - Thermostat To Pipe | Curved Radiator Hose |
| 1999 | Nissan | Altima | Lower - Thermostat To Pipe | Curved Radiator Hose |
| 1998 | Nissan | Altima | Lower - Thermostat To Pipe | Curved Radiator Hose |
| 1996 | Nissan | Altima | Lower - Thermostat To Pipe | Curved Radiator Hose |
| 1995 | Nissan | Altima | Lower - Thermostat To Pipe | Curved Radiator Hose |
| 1994 | Nissan | Altima | Lower - Thermostat To Pipe | Curved Radiator Hose |
| 1993 | Nissan | Altima | Lower - Thermostat To Pipe | Curved Radiator Hose |
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