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Dayco 70783 Radiator Coolant Hose
Overview of Dayco Curved Radiator Hose 70783
The Dayco Curved Radiator Hose 70783 is engineered to provide reliable coolant flow for a variety of vehicles including Chevrolet, Dodge, GMC, Hyundai, Mazda, Mitsubishi, Saab, Suzuki, and Toyota models. Designed with durable EPDM material, this radiator coolant hose ensures consistent performance under typical engine operating conditions.
- Constructed from high-quality EPDM material for heat and chemical resistance
- Black color with a curved design for precise fitment
- Inside diameter of 1 5/16 inches on both ends for uniform coolant flow
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Single inside diameter hose type with a trunk height of 15 1/2 inches
- Compatible with multiple vehicle makes and models including Chevrolet S10, Toyota Celica, and Mazda Millenia
Detailed Product Description
The Dayco Curved Radiator Hose 70783 is part of the Curved Radiator Hose product line, which focuses on delivering hoses with precise bends to accommodate specific engine layouts. This hose is manufactured from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for radiator coolant applications. Both ends of the hose have an inside diameter of 1 5/16 inches, ensuring a consistent seal and flow rate. The hose does not include a heat shield or protective sleeve, which is typical for this type of single inside diameter hose. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant systems.
Compatible Vehicles and Applications
- Chevrolet S10, S10 Blazer, S15, S15 Jimmy
- Dodge Van
- GMC S15, S15 Jimmy
- Hyundai Elantra, Excel
- Mazda Millenia, 900
- Mitsubishi Eclipse, Precis, Tredia
- Saab 900
- Suzuki Esteem, Scoupe
- Toyota Celica, Corolla, Corona, Cressida, Supra, Tercel, Cordia
Common Issues Addressed by This Radiator Coolant Hose
- Replacement of cracked or leaking radiator hoses
- Resolving coolant flow restrictions due to hose deformation
- Preventing overheating caused by coolant leaks
- Maintaining proper coolant system pressure and flow
- Upgrading worn or aged hoses to meet OEM specifications
Installation Notes and Tips
Ensure the engine is cool before removing the old radiator hose to avoid burns. Verify that the hose diameter and length match the original part. Use appropriate clamps to secure the hose ends and check for leaks after installation. Since this hose does not include a heat shield or protective sleeve, inspect surrounding components for potential abrasion points. Proper routing is essential to avoid kinks or excessive bending.
Quality Assurance and Warranty
Dayco manufactures the Curved Radiator Hose 70783 to meet SAE specifications, ensuring durability and performance in automotive cooling systems. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and reliability.
| Brand | Dayco |
| Part Number | 70783 |
| Position | Curved Radiator Hose, Upper, Lower, Upper - Pipe To Thermostat, and Upper - Radiator To Thermostat |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 1 5/16 |
| End 2 Inside Diameter | 1 5/16 |
| 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 | 15 1/2 |
This part fits 122 vehicles. Search below:
| Year | Make | Model | Drive Type | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2002 | Mazda | Millenia | 2.3L | V6 | Lower | Curved Radiator Hose | ||
| 2002 | Suzuki | Esteem | Upper | Curved Radiator Hose | ||||
| 2001 | Mazda | Millenia | 2.3L | V6 | Lower | Curved Radiator Hose | ||
| 2001 | Suzuki | Esteem | 1.8L | L4 | Upper | Curved Radiator Hose | ||
| 2000 | Mazda | Millenia | 2.3L | V6 | Lower | Curved Radiator Hose | ||
| 2000 | Suzuki | Esteem | 1.8L | L4 | Upper | Curved Radiator Hose | ||
| 1999 | Mazda | Millenia | 2.3L | V6 | Lower | Curved Radiator Hose | ||
| 1999 | Suzuki | Esteem | 1.8L | L4 | Upper | Curved Radiator Hose | ||
| 1998 | Mazda | Millenia | 2.3L | V6 | Lower | Curved Radiator Hose | ||
| 1997 | Mazda | Millenia | 2.3L | V6 | Lower | Curved Radiator Hose | ||
| 1996 | Mazda | Millenia | 2.3L | V6 | Lower | Curved Radiator Hose | ||
| 1995 | Hyundai | Elantra | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1995 | Mazda | Millenia | 2.3L | V6 | Lower | Curved Radiator Hose | ||
| 1994 | Hyundai | Elantra | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1993 | Hyundai | Elantra | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1992 | Hyundai | Excel | Lower | Curved Radiator Hose | ||||
| 1992 | Hyundai | Scoupe | Lower | Curved Radiator Hose | ||||
| 1992 | Mitsubishi | Galant | Lower | Curved Radiator Hose | ||||
| 1992 | Mitsubishi | Precis | Lower | Curved Radiator Hose | ||||
| 1992 | Toyota | Supra | Lower | Curved Radiator Hose | ||||
| 1991 | Dodge | Colt | Manual | 2.0L | L4 | Lower | Curved Radiator Hose | |
| 1991 | Hyundai | Excel | Lower | Curved Radiator Hose | ||||
| 1991 | Hyundai | Scoupe | Lower | Curved Radiator Hose | ||||
| 1991 | Mitsubishi | Galant | Lower | Curved Radiator Hose | ||||
| 1991 | Mitsubishi | Precis | Lower | Curved Radiator Hose | ||||
| 1991 | Toyota | Supra | Lower | Curved Radiator Hose | ||||
| 1990 | Dodge | Colt | Manual | 2.0L | L4 | Lower | Curved Radiator Hose | |
| 1990 | Hyundai | Excel | Lower | Curved Radiator Hose | ||||
| 1990 | Mitsubishi | Eclipse | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1990 | Mitsubishi | Eclipse | 2.0L | L4 | Lower | Curved Radiator Hose | ||
| 1990 | Mitsubishi | Galant | Lower | Curved Radiator Hose | ||||
| 1990 | Mitsubishi | Precis | Lower | Curved Radiator Hose | ||||
| 1990 | Toyota | Supra | Lower | Curved Radiator Hose | ||||
| 1989 | Dodge | Colt | Manual | 1.5L | L4 | Lower | Curved Radiator Hose | |
| 1989 | Dodge | Colt | Manual | 2.0L | L4 | Lower | Curved Radiator Hose | |
| 1989 | Mitsubishi | Galant | Lower | Curved Radiator Hose | ||||
| 1989 | Toyota | Supra | Lower | Curved Radiator Hose | ||||
| 1989 | Toyota | Van | Upper | Curved Radiator Hose | ||||
| 1988 | Dodge | Colt | Manual | 1.5L | L4 | Lower | Curved Radiator Hose | |
| 1988 | Dodge | Colt | Manual | 2.0L | L4 | Lower | Curved Radiator Hose | |
| 1988 | Mitsubishi | Cordia | 2.0L | L4 | Lower | Curved Radiator Hose | ||
| 1988 | Mitsubishi | Cordia | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1988 | Mitsubishi | Tredia | 2.0L | L4 | Lower | Curved Radiator Hose | ||
| 1988 | Mitsubishi | Tredia | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1988 | Saab | 900 | Upper - Pipe To Thermostat | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||||
| 1988 | Toyota | Cressida | Lower | Curved Radiator Hose | ||||
| 1988 | Toyota | Supra | Lower | Curved Radiator Hose | ||||
| 1988 | Toyota | Van | Upper | Curved Radiator Hose | ||||
| 1987 | Dodge | Colt | Manual | 2.0L | L4 | Lower | Curved Radiator Hose | |
| 1987 | Mitsubishi | Cordia | 2.0L | L4 | Lower | Curved Radiator Hose | ||
| 1987 | Mitsubishi | Cordia | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1987 | Mitsubishi | Tredia | 2.0L | L4 | Lower | Curved Radiator Hose | ||
| 1987 | Mitsubishi | Tredia | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1987 | Saab | 900 | Upper - Pipe To Thermostat | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||||
| 1987 | Toyota | Cressida | Lower | Curved Radiator Hose | ||||
| 1987 | Toyota | Supra | Lower | Curved Radiator Hose | ||||
| 1987 | Toyota | Van | Upper | Curved Radiator Hose | ||||
| 1986 | Dodge | Colt | 4WD | 2.0L | L4 | Lower | Curved Radiator Hose | |
| 1986 | Mitsubishi | Cordia | 2.0L | L4 | Lower | Curved Radiator Hose | ||
| 1986 | Mitsubishi | Cordia | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1986 | Mitsubishi | Tredia | 2.0L | L4 | Lower | Curved Radiator Hose | ||
| 1986 | Mitsubishi | Tredia | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1986 | Saab | 900 | Upper | Curved Radiator Hose | ||||
| 1986 | Toyota | Corolla | Lower | Curved Radiator Hose | ||||
| 1986 | Toyota | Cressida | Lower | Curved Radiator Hose | ||||
| 1986 | Toyota | Van | Upper | Curved Radiator Hose | ||||
| 1985 | Dodge | Colt | 4WD | 2.0L | L4 | Lower | Curved Radiator Hose | |
| 1985 | Mitsubishi | Cordia | 2.0L | L4 | Lower | Curved Radiator Hose | ||
| 1985 | Mitsubishi | Cordia | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1985 | Mitsubishi | Tredia | 2.0L | L4 | Lower | Curved Radiator Hose | ||
| 1985 | Mitsubishi | Tredia | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1985 | Saab | 900 | Upper - Radiator To Thermostat | Fits vehicles without air conditioning.; Curved Radiator Hose | ||||
| 1985 | Toyota | Corolla | 1.6L | L4 | Lower | Curved Radiator Hose | ||
| 1985 | Toyota | Cressida | Lower | Curved Radiator Hose | ||||
| 1985 | Toyota | Van | Upper | Curved Radiator Hose | ||||
| 1984 | Chevrolet | S10 | 2.0L | L4 | Upper | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||
| 1984 | Chevrolet | S10 | 2.0L | L4 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1984 | Chevrolet | S10 Blazer | 2.0L | L4 | Upper | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||
| 1984 | Chevrolet | S10 Blazer | 2.0L | L4 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1984 | GMC | S15 | 2.0L | L4 | Upper | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||
| 1984 | GMC | S15 | 2.0L | L4 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1984 | GMC | S15 Jimmy | 2.0L | L4 | Upper | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||
| 1984 | GMC | S15 Jimmy | 2.0L | L4 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1984 | Mitsubishi | Cordia | 2.0L | L4 | Lower | Curved Radiator Hose | ||
| 1984 | Mitsubishi | Cordia | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1984 | Mitsubishi | Tredia | 2.0L | L4 | Lower | Curved Radiator Hose | ||
| 1984 | Mitsubishi | Tredia | 1.8L | L4 | Lower | Curved Radiator Hose | ||
| 1984 | Saab | 900 | Upper - Pipe To Thermostat | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||||
| 1984 | Saab | 900 | Upper - Radiator To Thermostat | Fits vehicles without air conditioning.; Curved Radiator Hose | ||||
| 1984 | Toyota | Van | Upper | Curved Radiator Hose | ||||
| 1983 | Chevrolet | S10 | 2.0L | L4 | Upper | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||
| 1983 | Chevrolet | S10 | 2.0L | L4 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1983 | Chevrolet | S10 Blazer | 2.0L | L4 | Upper | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||
| 1983 | Chevrolet | S10 Blazer | 2.0L | L4 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1983 | GMC | S15 | 2.0L | L4 | Upper | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||
| 1983 | GMC | S15 | 2.0L | L4 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1983 | GMC | S15 Jimmy | 2.0L | L4 | Upper | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||
| 1983 | GMC | S15 Jimmy | 2.0L | L4 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1983 | Mitsubishi | Cordia | Lower | Curved Radiator Hose | ||||
| 1983 | Mitsubishi | Tredia | Lower | Curved Radiator Hose | ||||
| 1983 | Saab | 900 | Upper - Pipe To Thermostat | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||||
| 1983 | Saab | 900 | Upper - Radiator To Thermostat | Fits vehicles without air conditioning.; Curved Radiator Hose | ||||
| 1982 | Saab | 900 | Upper - Pipe To Thermostat | Curved Radiator Hose | ||||
| 1982 | Saab | 900 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||||
| 1982 | Saab | 900 | Upper - Pipe To Thermostat | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||||
| 1982 | Saab | 900 | Upper - Radiator To Thermostat | Fits vehicles without air conditioning.; Curved Radiator Hose | ||||
| 1982 | Toyota | Cressida | Lower | Curved Radiator Hose | ||||
| 1982 | Toyota | Tercel | Lower | w/A.P.; Curved Radiator Hose | ||||
| 1982 | Toyota | Tercel | Lower | w/o A.P.; Curved Radiator Hose | ||||
| 1981 | Saab | 900 | Upper - Pipe To Thermostat | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||||
| 1981 | Saab | 900 | Upper - Radiator To Thermostat | Fits vehicles without air conditioning.; Curved Radiator Hose | ||||
| 1981 | Toyota | Celica | 2.8L | L6 | Lower | Curved Radiator Hose | ||
| 1981 | Toyota | Cressida | Lower | Curved Radiator Hose | ||||
| 1981 | Toyota | Tercel | Lower | w/A.P.; Curved Radiator Hose | ||||
| 1981 | Toyota | Tercel | Lower | w/o A.P.; Curved Radiator Hose | ||||
| 1980 | Toyota | Celica | 2.6L | L6 | Lower | Curved Radiator Hose | ||
| 1980 | Toyota | Cressida | Lower | Curved Radiator Hose | ||||
| 1979 | Toyota | Celica | 2.6L | L6 | Lower | Curved Radiator Hose | ||
| 1979 | Toyota | Cressida | Lower | Curved Radiator Hose | ||||
| 1978 | Toyota | Cressida | Lower | Curved Radiator Hose | ||||
| 1973 | Toyota | Corona | 2.6L | L6 | Lower | Curved Radiator Hose | ||
| 1972 | Toyota | Corona | 2.3L | L6 | Lower | 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.