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Dayco 71124 Radiator Coolant Hose - Lower
| Brand | Dayco 71124 |
|---|---|
| Position | Lower |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 2 1/2 |
| End 2 Inside Diameter | 2 1/2 |
| Contains Heat Shield | N |
| Contains Protective Sleeve | N |
| Hose Type | Single i.d. hose |
| SAE Specification | Sae j20r4 class d-1, sae j1684 type ec |
| Trunk Height | 14 3/4 |
| Fits | — |
Curved radiator hose. Single I.D. hose for a clean, direct coolant connection.
EPDM construction. Built to handle heat and coolant exposure in demanding systems.
SAE-spec compliant. Meets SAE J20R4 Class D-1 and SAE J1684 Type EC requirements.
Cross-references ACDelco 20117S, ACDelco 22150M and CARQUEST 21135 for the same application. See all 15.
Dayco 71124 Curved Radiator Hose
Dayco 71124 is a curved radiator coolant hose built from EPDM for dependable coolant transfer in the engine cooling system. With 2 1/2-inch inside diameters on both ends and a black finish, it is shaped for routing where a formed hose is required.
For buyers searching for a Dayco curved radiator hose for Navistar applications or a replacement coolant hose for heavy-duty cooling service, this part number provides a direct OE-style hose solution. The Dayco 71124 is also cross-referenced to ACDelco 20117S and 22150M for the same application.
Key Features
- EPDM construction for coolant hose service
- Curved radiator hose design for formed routing
- 2 1/2-inch inside diameter at both ends
- Black hose finish
- Single I.D. hose configuration
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- No heat shield and no protective sleeve
Product Details
The Dayco Curved Radiator Hose line is built for applications that require a shaped coolant hose with consistent fit and routing. Part number 71124 uses EPDM rubber, a common material for radiator and heater hose service, and follows SAE coolant hose specifications for dimensional and performance requirements. This hose is suited for replacement work where the original hose uses a curved profile and 2 1/2-inch connections.
Search terms such as Navistar 71124 radiator hose, Dayco 71124 coolant hose, and curved radiator hose replacement for Navistar help identify this part for cooling-system service. If you are sourcing a radiator coolant hose for Navistar trucks or related heavy-duty applications, this hose matches the listed dimensions and construction.
Common Problems This Hose Addresses
- Cracked or aged radiator hose material
- Coolant leaks at worn hose connections
- Collapsed or softened hose sections
- Poor hose routing from an incorrect straight hose replacement
- Cooling-system service needs on Navistar applications
Installation Notes and Tips
Verify the hose path, end diameters, and formed shape against the original part before installation. Inspect the radiator necks, clamps, and adjoining pipes for corrosion or damage, and replace any worn clamps during service. Confirm clearance around the hose routing so the curved profile is not twisted or stressed after installation.
Compatible With Navistar applications using the listed 2 1/2-inch curved radiator hose configuration. Use the original hose as the final reference for routing and length before installation.
Quality Assurance
Dayco manufactures cooling-system hoses to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, supporting consistent material and dimensional standards for radiator hose replacement.
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