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Dayco 71740 Radiator Coolant Hose
| Brand | Dayco 71740 |
|---|---|
| Position | Upper - Back To Back Intercooler, Upper - Side by Side Intercooler, Upper, and Upper - Engine To Radiator |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 2 1/4 |
| End 2 Inside Diameter | 2 1/2 |
| 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 | 17 |
| Fits | — |
Dual I.D. hose. Built with two inside diameters for a precise coolant connection.
EPDM construction. Resists heat and coolant exposure for dependable service.
Curved radiator hose. Formed for smooth routing in cooling system applications.
Cross-references ACDelco 24317L, CARQUEST 22140 and Duralast E71740 for the same application. See all 11.
Dayco 71740 Curved Radiator Hose Overview
The Dayco 71740 curved radiator hose is a dual I.D. coolant hose built from EPDM for use in cooling system service where a formed hose with different inside diameters is required. Its black finish and SAE J20R4 Class D-1 and SAE J1684 Type EC compliance make it a practical replacement for select heavy-duty and commercial cooling applications.
Dayco’s Curved Radiator Hose line focuses on formed hose routing and correct coolant flow paths for vehicles that need a shaped upper or lower radiator connection. The 71740 part number is a direct reference for buyers searching for a Dayco 71740 radiator coolant hose, Dayco curved radiator hose 71740, or a dual I.D. hose for cooling system repair.
Key Features
- EPDM construction for coolant hose service
- Dual I.D. hose design with 2 1/4 in. end 1 inside diameter and 2 1/2 in. end 2 inside diameter
- Black exterior for a clean OE-style appearance
- Curved radiator hose shape for formed routing
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Dayco part number 71740 for catalog and cross-reference lookup
Detailed Description
Dayco 71740 is a radiator coolant hose made for applications that require a curved, dual-diameter connection in the cooling system. The EPDM rubber construction is suited to coolant exposure and temperature cycling, while the formed shape helps maintain the intended hose path in the engine bay. Buyers searching for a replacement radiator hose for Navistar cooling system service, or a Dayco hose for commercial truck radiator repair, can use this part number to identify the correct formed hose style.
This part cross-references ACDelco 24317L and Gates 22140 for the same application. It is also commonly searched as a Dayco 71740 coolant hose replacement for Navistar and other heavy-duty vehicle cooling system repairs.
What It Helps Address
- Cracked or split radiator hose material
- Coolant leaks at a formed hose connection
- Incorrect hose routing in a curved cooling system path
- Mismatch between different hose end inside diameters
- Cooling system service needs on select Navistar applications
Installation Notes and Tips
Verify both hose end inside diameters before installation: 2 1/4 in. on one end and 2 1/2 in. on the other. Confirm routing, bend shape, and clearance around belts, pulleys, and hot components before clamping the hose in place. Drain coolant as needed, inspect adjoining necks and clamps for wear, and replace any damaged sealing surfaces during service.
Quality Assurance
This Dayco curved radiator hose is built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for cooling system hose applications. Use the part number 71740 when matching the hose to catalog listings, interchange references, and vehicle service records.
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