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Dayco 71661 Radiator Coolant Hose - Upper
Dayco Curved Radiator Hose for Ford Aerostar
Dayco 71661 is a curved radiator coolant hose built for the cooling system on the 1986 Ford Aerostar upper hose location. Made from EPDM rubber and formed as a dual I.D. hose, it provides the correct routing and diameter transition for this application.
Compatible with 1986 Ford Aerostar upper radiator hose applications, this Dayco hose is specified to SAE J20R4 Class D-1 and SAE J1684 Type EC standards. The black EPDM construction is selected for coolant service and underhood temperature exposure.
Key Features
- Part number 71661 for direct identification
- Curved radiator hose for upper cooling system routing
- Dual I.D. hose with 1 5/16 in. end 1 and 1 7/16 in. end 2
- EPDM rubber construction in black finish
- Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Fits 1986 Ford Aerostar, upper
Product Details
Dayco’s Curved Radiator Hose line focuses on formed coolant hoses that match vehicle-specific routing and connection sizes. This 71661 hose is shaped for the upper radiator position on the 1986 Ford Aerostar and uses a dual inside diameter design to connect the cooling system components with the proper fit. The Dayco 71661 part number is also useful when cross-referencing replacement listings for the same application.
This part cross-references Ford E69Z-8260-B for the same application.
Common Cooling System Issues
- Cracked or hardened upper radiator hose
- Coolant leaks at hose connections
- Incorrect hose routing on the Ford Aerostar cooling system
- Softening or swelling from age and heat exposure
- Restricted replacement due to mismatched hose diameters
Installation Notes
Verify the upper hose routing and end diameters before installation. Inspect the radiator neck, engine outlet, and clamps for wear or corrosion, and replace any damaged sealing surfaces before installing the new hose. Confirm the hose seats fully on both ends and check coolant level after the system is refilled and bled.
Quality Assurance
This Dayco radiator coolant hose is manufactured to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for coolant hose service.
| Brand | Dayco |
|---|---|
| Part Number | 71661 |
| Position | Curved Radiator Hose, Upper |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 1 5/16 |
| End 2 Inside Diameter | 1 7/16 |
| 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 | 11 |
This part fits 1 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1986 | Ford | Aerostar | 2.8L | V6 | Upper | Curved Radiator Hose |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.