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Dayco 70957 Radiator Coolant Hose - Upper
Overview of Dayco Curved Radiator Hose 70957
The Dayco Curved Radiator Hose 70957 is designed to provide reliable coolant flow for select Ford, Lincoln, and Mercury vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and long-lasting performance in your cooling system.
- Constructed from high-quality EPDM for heat and chemical resistance
- Dual inside diameters: 1 1/4 inch and 1 1/2 inch ends for precise fitment
- Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards
- Black color for standard OEM appearance
- Trunk height of 19 inches suitable for specific vehicle routing
Detailed Product Description
The Dayco Curved Radiator Hose 70957 is a dual inside diameter hose designed to meet the cooling system requirements of various Ford, Lincoln, and Mercury models, including the Colony Park, Continental, Grand Marquis, LTD, LTD Crown Victoria, Mark VI, Marquis, Ranger, and Town Car. Made from EPDM material, this hose offers resistance to heat, ozone, and coolant chemicals, ensuring durability under typical engine operating conditions. The hose features a curved design to accommodate specific engine bay layouts and has a trunk height of 19 inches to fit routing needs. It does not include a heat shield or protective sleeve, focusing on core functionality and fitment.
Compatible Vehicles and Applications
- Ford Colony Park
- Lincoln Continental
- Mercury Grand Marquis
- Ford LTD and LTD Crown Victoria
- Lincoln Mark VI
- Mercury Marquis
- Ford Ranger
- Lincoln Town Car
Common Issues Addressed by This Radiator Coolant Hose
- Coolant leaks due to cracked or worn hoses
- Overheating caused by restricted coolant flow
- Swelling or softening of old radiator hoses
- Improper fitment from generic hoses causing coolant loss
- Degradation from exposure to engine heat and chemicals
Installation Notes and Tips
- Ensure engine is cool before removing the old hose
- Check hose clamps and replace if corroded or damaged
- Verify the correct orientation of the dual inside diameter ends
- Inspect surrounding components for wear or damage during installation
- Test for leaks after installation by running the engine to operating temperature
Quality Assurance and Standards
The Dayco Curved Radiator Hose 70957 meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, ensuring compliance with industry standards for coolant hoses. Manufactured with EPDM material, it provides resistance to heat, ozone, and coolant chemicals, contributing to reliable performance. While no specific warranty information is provided, Dayco products are generally produced under strict quality control processes to meet OEM requirements.
| Brand | Dayco |
|---|---|
| Part Number | 70957 |
| Position | Curved Radiator Hose, Upper |
| Color | Black |
| End 1 Inside Diameter | 1 1/4 |
| End 2 Inside Diameter | 1 1/2 |
| Hose Type | Dual I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 19 |
This part fits 67 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1991 | Ford | LTD Crown Victoria | 5.8L | V8 | Upper | Police Car; Curved Radiator Hose |
| 1991 | Mercury | Colony Park | Upper | Police Car; Curved Radiator Hose | ||
| 1991 | Mercury | Grand Marquis | Upper | Police Car; Curved Radiator Hose | ||
| 1990 | Ford | LTD Crown Victoria | 5.8L | V8 | Upper | Police Car; Curved Radiator Hose |
| 1990 | Mercury | Colony Park | Upper | Police Car; Curved Radiator Hose | ||
| 1990 | Mercury | Grand Marquis | Upper | Police Car; Curved Radiator Hose | ||
| 1989 | Ford | LTD Crown Victoria | 5.8L | V8 | Upper | Police Car; Curved Radiator Hose |
| 1988 | Ford | LTD Crown Victoria | 5.8L | V8 | Upper | Police Car; Curved Radiator Hose |
| 1988 | Mercury | Grand Marquis | 5.8L | V8 | Upper | Police Car; Curved Radiator Hose |
| 1987 | Ford | LTD Crown Victoria | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1987 | Mercury | Grand Marquis | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1986 | Ford | LTD | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1986 | Mercury | Grand Marquis | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1985 | Ford | LTD | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1985 | Ford | LTD | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1985 | Lincoln | Town Car | Upper | Curved Radiator Hose | ||
| 1985 | Mercury | Grand Marquis | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1985 | Mercury | Grand Marquis | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1984 | Ford | LTD | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1984 | Ford | LTD | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1984 | Ford | Ranger | 2.2L | L4 | Upper | Curved Radiator Hose |
| 1984 | Lincoln | Town Car | Upper | Curved Radiator Hose | ||
| 1984 | Mercury | Grand Marquis | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1984 | Mercury | Grand Marquis | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1983 | Ford | LTD | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1983 | Ford | LTD | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1983 | Ford | Ranger | 2.2L | L4 | Upper | Curved Radiator Hose |
| 1983 | Lincoln | Mark VI | Upper | Curved Radiator Hose | ||
| 1983 | Lincoln | Town Car | Upper | Curved Radiator Hose | ||
| 1983 | Mercury | Grand Marquis | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1983 | Mercury | Grand Marquis | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1982 | Ford | LTD | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1982 | Ford | LTD | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1982 | Ford | LTD | 4.2L | V8 | Upper | Curved Radiator Hose |
| 1982 | Lincoln | Mark VI | Upper | Curved Radiator Hose | ||
| 1982 | Lincoln | Town Car | Upper | Curved Radiator Hose | ||
| 1982 | Mercury | Grand Marquis | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1982 | Mercury | Grand Marquis | 4.2L | V8 | Upper | Curved Radiator Hose |
| 1982 | Mercury | Marquis | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1982 | Mercury | Marquis | 4.2L | V8 | Upper | Curved Radiator Hose |
| 1981 | Ford | LTD | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1981 | Ford | LTD | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1981 | Ford | LTD | 4.2L | V8 | Upper | Curved Radiator Hose |
| 1981 | Lincoln | Mark VI | Upper | Curved Radiator Hose | ||
| 1981 | Lincoln | Town Car | Upper | Curved Radiator Hose | ||
| 1981 | Mercury | Grand Marquis | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1981 | Mercury | Grand Marquis | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1981 | Mercury | Grand Marquis | 4.2L | V8 | Upper | Curved Radiator Hose |
| 1981 | Mercury | Marquis | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1981 | Mercury | Marquis | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1981 | Mercury | Marquis | 4.2L | V8 | Upper | Curved Radiator Hose |
| 1980 | Ford | LTD | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1980 | Ford | LTD | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1980 | Lincoln | Continental | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1980 | Lincoln | Continental | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1980 | Lincoln | Mark VI | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1980 | Lincoln | Mark VI | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1980 | Mercury | Grand Marquis | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1980 | Mercury | Grand Marquis | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1980 | Mercury | Marquis | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1980 | Mercury | Marquis | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1979 | Ford | LTD | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1979 | Ford | LTD | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1979 | Mercury | Grand Marquis | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1979 | Mercury | Grand Marquis | 5.8L | V8 | Upper | Curved Radiator Hose |
| 1979 | Mercury | Marquis | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1979 | Mercury | Marquis | 5.8L | V8 | 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.