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Dayco 71811 Radiator Coolant Hose - Lower
| Brand | Dayco 71811 |
|---|---|
| Position | Lower |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 2 1/4 |
| End 2 Inside Diameter | 2 1/4 |
| 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 | 11 |
| Fits | — |
EPDM construction. Resists heat and coolant exposure for dependable hose performance.
Single I.D. hose. Provides a straightforward coolant transfer path.
Curved radiator hose. Formed for a smooth, routed fit in cooling systems.
Cross-references ACDelco 26406X, CARQUEST 22671 and Duralast E71811 for the same application. See all 8.
Dayco 71811 Curved Radiator Hose Overview
Dayco 71811 is a curved radiator coolant hose built for cooling system service where a formed EPDM hose is required. With a 2 1/4-inch inside diameter at both ends, this single I.D. hose is made to route coolant cleanly between connection points while maintaining a secure fit.
For technicians and owners searching for a radiator hose for Navistar 2026923-C1 cross-reference applications or a replacement coolant hose for heavy-duty cooling repairs, this Dayco hose provides the dimensions and material specification needed for direct-fit service work.
Key Features
- EPDM construction for coolant-system durability
- Black curved radiator hose profile for formed routing
- 2 1/4-inch inside diameter at both ends
- Single I.D. hose design
- Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- No heat shield and no protective sleeve
Product Details
Dayco Curved Radiator Hose 71811 is part of the Dayco Curved Radiator Hose line, a cooling-system hose family focused on formed replacement hoses for radiator and coolant routing. The EPDM rubber construction is suited for coolant exposure, while the curved shape helps match the original hose path in applications that require a molded bend rather than a straight hose section. This hose is a practical choice for radiator hose replacement on Navistar and other heavy-duty cooling system applications where the listed dimensions match the original part.
This part cross-references ACDelco 26406X and Gates 22671 for the same application.
Common Problems This Hose Can Address
- Cracked or hardened radiator coolant hose material
- Coolant leaks at a worn hose section
- Collapsed hose routing under operating temperature
- Improper fit from a hose with the wrong bend or diameter
- Cooling system service needs on Navistar 2026923-C1 applications
Installation Notes and Tips
Verify the hose inside diameter at both ends before installation and compare the curved profile to the original routing path. Inspect hose clamps, radiator necks, and adjoining coolant pipes for wear, corrosion, or residue before installing Dayco 71811. Confirm that the hose is routed without twist or tension so the cooling system maintains proper flow and sealing.
Compatible With heavy-duty cooling system service where the original hose specification calls for a 2 1/4-inch curved radiator hose. Fits Navistar 2026923-C1 applications when the listed dimensions and routing match the vehicle setup.
Quality Assurance
Dayco manufactures this radiator coolant hose to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, supporting consistent material and performance requirements for cooling system replacement.
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