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Dayco 71985 Radiator Coolant Hose - Lower
| Brand | Dayco 71985 |
|---|---|
| Position | Lower |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 1 5/16 |
| End 2 Inside Diameter | 1 23/32 |
| Contains Heat Shield | N |
| Contains Protective Sleeve | Y |
| Hose Type | Dual i.d. hose |
| SAE Specification | Sae j20r4 class d-1, sae j1684 type ec |
| Trunk Height | 20 |
| Product line | Curved Radiator Hose |
| Fits | Ford and Mercury · 6 vehicles |
Curved hose design. Routes coolant smoothly with a dual I.D. construction.
EPDM construction. Resists heat and coolant exposure for dependable service.
Protective sleeve included. Adds extra abrasion resistance where the hose runs.
Cross-references ACDelco 22357M, CARQUEST 22452 and Duralast D71985 for the same application. See all 10.
Curved Lower Radiator Hose for Ford Explorer
Dayco 71985 is a curved radiator coolant hose built for lower cooling-system routing on select Ford and Mercury applications. It uses EPDM construction with a protective sleeve to help manage underhood heat and abrasion in demanding coolant service.
Compatible with 1999-2001 Ford Explorer, lower, and 1999-2001 Mercury Mountaineer, lower, this Dayco Curved Radiator Hose is shaped for the specified application and hose routing. The dual I.D. design matches the listed end sizes for a proper cooling-system connection.
Key Features
- EPDM rubber construction for coolant-hose service
- Black finish for OE-style appearance
- Dual I.D. hose design
- End 1 inside diameter: 1 5/16 in.
- End 2 inside diameter: 1 23/32 in.
- Protective sleeve included for added abrasion resistance
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
Product Details
Dayco 71985 is part of the Curved Radiator Hose line, a product line focused on formed coolant hoses for specific vehicle routing and fitment. This hose is engineered for lower radiator service on the 1999-2001 Ford Explorer and 1999-2001 Mercury Mountaineer, where the curved shape and dual inside diameters support the factory-style hose path. The Dayco 71985 part number is also referenced in common aftermarket cross listings for the same application.
This part cross-references Ford (e.g., F87A-8B273-LA, F87Z-8286-JA) for the same application.
What It Helps Address
- Cracked or aged lower radiator hose material
- Coolant seepage at worn hose ends
- Heat-related hose deterioration in the engine bay
- Incorrect hose shape or routing on replacement service
- Loss of cooling-system integrity from a damaged hose
Installation Notes and Tips
Verify the hose routing, end diameters, and lower-position application before installation. Inspect the mating necks, clamps, and adjacent cooling components for wear or corrosion, and replace any damaged parts before filling the system. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.
Quality Assurance
Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for radiator coolant hose service. Dayco 71985 is a formed EPDM hose with a protective sleeve for the listed Ford Explorer and Mercury Mountaineer applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2001 | Ford | Explorer | 5.0L | V8 | Lower | Curved Radiator Hose |
| 2001 | Mercury | Mountaineer | 5.0L | V8 | Lower | Curved Radiator Hose |
| 2000 | Ford | Explorer | 5.0L | V8 | Lower | Curved Radiator Hose |
| 2000 | Mercury | Mountaineer | 5.0L | V8 | Lower | Curved Radiator Hose |
| 1999 | Ford | Explorer | 5.0L | V8 | Lower | Curved Radiator Hose |
| 1999 | Mercury | Mountaineer | 5.0L | V8 | Lower | Curved Radiator Hose |
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