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Dayco 70641 Radiator Coolant Hose
Overview of Dayco Curved Radiator Hose 70641
The Dayco Curved Radiator Hose 70641 is designed to provide reliable coolant flow for a variety of vehicles including Acura, Chevrolet, Dodge, Ford, Mercury, Mitsubishi, and Toyota models. Engineered with durable EPDM material, this black single inside diameter hose ensures consistent performance in demanding cooling system applications.
- Constructed from high-quality EPDM material for heat and chemical resistance
- Black color with a curved design for precise fitment
- Both ends have a 1 1/4 inch inside diameter for uniform connection
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Trunk height of 11 inches for proper routing in engine compartments
- Single inside diameter hose type for straightforward installation
Detailed Product Description
The Dayco Curved Radiator Hose 70641 is part of the Curved Radiator Hose product line, which focuses on delivering hoses shaped to fit specific engine layouts and cooling system designs. This hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for long-term use in automotive cooling systems. The hose’s black color and curved shape allow it to fit neatly within the engine bay without kinking or interfering with other components. Both ends feature a consistent 1 1/4 inch inside diameter, ensuring a secure and leak-free connection to radiator and engine fittings. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for coolant applications in various vehicles.
Compatible Vehicles and Applications
This radiator coolant hose is compatible with multiple makes and models, including Acura TL, Chevrolet Bobcat, Dodge Colt, Ford Bronco, Mercury Montego, Mitsubishi Mirage, and Toyota Celica, MR2, LUV, Mustang, Pinto, and Villager. It is designed to replace worn or damaged radiator hoses in these vehicles, maintaining proper coolant flow and engine temperature regulation.
- Replaces cracked or leaking radiator coolant hoses
- Prevents overheating caused by coolant loss
- Eliminates hose collapse or kinking issues
- Restores proper coolant circulation in the radiator system
- Addresses hose swelling or softening due to age or heat exposure
Installation Notes and Tips
When installing the Dayco Curved Radiator Hose 70641, ensure the engine is cool before removal of the old hose to avoid burns. Verify that the hose diameter matches the radiator and engine fittings. Use appropriate clamps to secure both ends and check for leaks after installation. The curved design should align with the original hose routing to prevent stress or interference with other engine components.
Quality Assurance and Warranty
Dayco manufactures the Curved Radiator Hose 70641 to meet strict SAE specifications, ensuring durability and performance under typical automotive operating conditions. While specific warranty details are not provided, Dayco products generally adhere to industry standards for quality and reliability, making this hose a dependable choice for radiator coolant system maintenance.
| Brand | Dayco |
| Part Number | 70641 |
| Position | Curved Radiator Hose, Upper |
| Color | Black |
| End 1 Inside Diameter | 1 1/4 |
| End 2 Inside Diameter | 1 1/4 |
| Hose Type | Single I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 11 |
This part fits 62 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1998 | Acura | TL | 2.5L | L5 | Upper | Curved Radiator Hose |
| 1997 | Acura | TL | 2.5L | L5 | Upper | Curved Radiator Hose |
| 1996 | Acura | TL | 2.5L | L5 | Upper | Curved Radiator Hose |
| 1996 | Mitsubishi | Mirage | 1.8L | L4 | Upper | Curved Radiator Hose |
| 1995 | Acura | TL | Upper | Curved Radiator Hose | ||
| 1995 | Mitsubishi | Mirage | 1.8L | L4 | Upper | Curved Radiator Hose |
| 1995 | Toyota | MR2 | 2.2L | L4 | Upper - Pipe To Pipe (Front) | Curved Radiator Hose |
| 1994 | Dodge | Colt | 1.8L | L4 | Upper | Curved Radiator Hose |
| 1994 | Mitsubishi | Mirage | 1.8L | L4 | Upper | Curved Radiator Hose |
| 1994 | Toyota | MR2 | 2.2L | L4 | Upper - Pipe To Pipe (Front) | Curved Radiator Hose |
| 1993 | Dodge | Colt | 1.8L | L4 | Upper | Curved Radiator Hose |
| 1993 | Mitsubishi | Mirage | 1.8L | L4 | Upper | Curved Radiator Hose |
| 1993 | Toyota | Celica | 2.0L | L4 | Lower - Pipe To Engine | Curved Radiator Hose |
| 1993 | Toyota | MR2 | 2.2L | L4 | Upper - Pipe To Pipe (Front) | Curved Radiator Hose |
| 1993 | Toyota | MR2 | 2.0L | L4 | Upper - Pipe To Pipe (Front) | Curved Radiator Hose |
| 1992 | Toyota | Celica | 2.0L | L4 | Lower - Pipe To Engine | Curved Radiator Hose |
| 1992 | Toyota | MR2 | 2.2L | L4 | Upper - Pipe To Pipe (Front) | Curved Radiator Hose |
| 1992 | Toyota | MR2 | 2.0L | L4 | Upper - Pipe To Pipe (Front) | Curved Radiator Hose |
| 1991 | Toyota | Celica | 2.0L | L4 | Lower - Pipe To Engine | Curved Radiator Hose |
| 1991 | Toyota | MR2 | 2.2L | L4 | Upper - Pipe To Pipe (Front) | Curved Radiator Hose |
| 1991 | Toyota | MR2 | 2.0L | L4 | Upper - Pipe To Pipe (Front) | Curved Radiator Hose |
| 1990 | Toyota | Celica | 2.0L | L4 | Lower - Pipe To Engine | Curved Radiator Hose |
| 1979 | Ford | Pinto | 2.8L | V6 | Lower | Curved Radiator Hose |
| 1979 | Mercury | Bobcat | 2.8L | V6 | Lower | Curved Radiator Hose |
| 1978 | Ford | Pinto | 2.8L | V6 | Lower | Curved Radiator Hose |
| 1978 | Mercury | Bobcat | 2.8L | V6 | Lower | Curved Radiator Hose |
| 1977 | Ford | Pinto | 2.8L | V6 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1977 | Ford | Pinto | 2.8L | V6 | Lower | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1977 | Mercury | Bobcat | 2.8L | V6 | Lower | Compatible with vehicles containing air conditioning.; Curved Radiator Hose |
| 1977 | Mercury | Bobcat | 2.8L | V6 | Lower | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1976 | Ford | Pinto | 2.8L | V6 | Lower | Curved Radiator Hose |
| 1976 | Mercury | Bobcat | 2.8L | V6 | Lower | Curved Radiator Hose |
| 1975 | Chevrolet | LUV | Upper | Curved Radiator Hose | ||
| 1975 | Ford | Pinto | 2.8L | V6 | Lower | Curved Radiator Hose |
| 1975 | Mercury | Bobcat | 2.8L | V6 | Lower | Curved Radiator Hose |
| 1974 | Ford | Bronco | 3.3L | L6 | Upper | Curved Radiator Hose |
| 1973 | Ford | Bronco | 3.3L | L6 | Upper | Curved Radiator Hose |
| 1972 | Ford | Bronco | 2.8L | L6 | Upper | Curved Radiator Hose |
| 1971 | Ford | Bronco | 2.8L | L6 | Upper | Curved Radiator Hose |
| 1970 | Ford | Bronco | 2.8L | L6 | Upper | Curved Radiator Hose |
| 1970 | Ford | Mustang | 3.3L | L6 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1969 | Ford | Bronco | 2.8L | L6 | Upper | Curved Radiator Hose |
| 1969 | Ford | Mustang | 3.3L | L6 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1968 | Ford | Bronco | 2.8L | L6 | Upper | Curved Radiator Hose |
| 1968 | Ford | Mustang | 3.3L | L6 | Upper | Curved Radiator Hose |
| 1968 | Mercury | Montego | 3.3L | L6 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1967 | Ford | Bronco | 2.8L | L6 | Upper | Curved Radiator Hose |
| 1967 | Ford | Econoline | 2.8L | L6 | Upper | w/o A.P.; Curved Radiator Hose |
| 1967 | Ford | Econoline | 3.9L | L6 | N/A | w/A.P., w/4 Spd. Trans.; Curved Radiator Hose |
| 1967 | Mercury | Villager | 3.3L | L6 | Upper | Curved Radiator Hose |
| 1966 | Ford | Bronco | 2.8L | L6 | Upper | Curved Radiator Hose |
| 1966 | Ford | Econoline | 2.8L | L6 | Upper | Curved Radiator Hose |
| 1966 | Mercury | Villager | 3.3L | L6 | Upper | Curved Radiator Hose |
| 1965 | Ford | Econoline | 2.8L | L6 | Upper | w/4 Spd. Trans.; Curved Radiator Hose |
| 1965 | Ford | Econoline | 2.8L | L6 | Upper | w/M.T.; Curved Radiator Hose |
| 1964 | Ford | Econoline | 2.4L | L6 | Upper | w/M.T.; Curved Radiator Hose |
| 1964 | Ford | Econoline | 2.8L | L6 | Upper | Curved Radiator Hose |
| 1963 | Ford | Econoline | 2.4L | L6 | Upper | Curved Radiator Hose |
| 1963 | Ford | Econoline | 2.8L | L6 | Upper | Curved Radiator Hose |
| 1962 | Ford | Econoline | 2.4L | L6 | Upper | Curved Radiator Hose |
| 1962 | Ford | Econoline | 2.8L | L6 | Upper | Curved Radiator Hose |
| 1961 | Ford | Econoline | 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.