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Dayco 70344 Radiator Coolant Hose - Lower or Upper
Overview of Dayco Curved Radiator Hose 70344
The Dayco Curved Radiator Hose 70344 is engineered to provide reliable coolant flow for a variety of vehicle makes and models. Designed with durable EPDM material, this radiator coolant hose ensures consistent performance in demanding engine environments.
- Constructed from high-quality EPDM for heat and chemical resistance
- Black single inside diameter hose with 1 1/2 inch ends
- Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards
- Trunk height measures 19 3/4 inches for precise fitment
- Compatible with multiple vehicle makes including BMW, Chevrolet, Ford, and more
Detailed Product Description
The Dayco Curved Radiator Hose 70344 is part of the Curved Radiator Hose product line, designed specifically to meet the cooling system requirements of various passenger and light truck vehicles. Made from EPDM (ethylene propylene diene monomer), this hose offers excellent resistance to heat, ozone, and coolant chemicals, which helps maintain durability and flexibility over time. Both ends of the hose have an inside diameter of 1 1/2 inches, making it a single inside diameter hose suitable for direct replacement applications. The hose does not include a heat shield or protective sleeve, focusing on straightforward installation and compatibility.
Compatible Vehicles and Applications
This radiator coolant hose is compatible with a wide range of vehicles, including BMW models such as 318i, 318is, 318ti, 525i, and 525iT; Chevrolet models like Camaro, Caprice, and Impala; Chrysler and Dodge vehicles including 300, 300D, and 300TD; as well as Ford and Lincoln models such as Thunderbird and Continental. It also fits Mazda RX-7, Mercedes-Benz, Mercury, and other makes like Malibu, Marauder, and Town & Country. The part number 70344 ensures precise identification for these applications.
Common Issues Addressed by Dayco Radiator Hose 70344
- Prevents coolant leaks caused by cracked or worn hoses
- Maintains proper coolant flow to avoid engine overheating
- Resists degradation from heat and chemical exposure
- Replaces hoses with incorrect diameter or length for proper fit
- Eliminates coolant contamination from hose failure
Installation Notes and Tips
When installing the Dayco Curved Radiator Hose 70344, ensure the engine is cool to prevent burns or injury. Verify that the hose diameter and length match the original equipment specifications. Use appropriate clamps to secure the hose ends and check for any signs of wear or damage on adjacent components. Since this hose does not include a heat shield or protective sleeve, inspect the surrounding area for potential abrasion points and address as needed.
Quality Assurance and Warranty
Dayco manufactures the Curved Radiator Hose 70344 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, ensuring compliance with industry standards for radiator coolant hoses. This part undergoes rigorous quality control to provide consistent performance and durability. Warranty details are subject to Dayco's standard terms and conditions.
| Brand | Dayco |
|---|---|
| Part Number | 70344 |
| Position | Curved Radiator Hose, Upper |
| Color | Black |
| End 1 Inside Diameter | 1 1/2 |
| End 2 Inside Diameter | 1 1/2 |
| Hose Type | Single I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 19 3/4 |
This part fits 114 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1998 | BMW | 318i | Upper | Curved Radiator Hose | ||
| 1998 | BMW | 318is | Upper | Curved Radiator Hose | ||
| 1998 | BMW | 318ti | Upper | Curved Radiator Hose | ||
| 1997 | BMW | 318i | Upper | Curved Radiator Hose | ||
| 1997 | BMW | 318is | Upper | Curved Radiator Hose | ||
| 1997 | BMW | 318ti | Upper | Curved Radiator Hose | ||
| 1996 | BMW | 318i | Upper | Curved Radiator Hose | ||
| 1996 | BMW | 318is | Upper | Curved Radiator Hose | ||
| 1996 | BMW | 318ti | Upper | Curved Radiator Hose | ||
| 1995 | BMW | 318i | Upper | Curved Radiator Hose | ||
| 1995 | BMW | 318is | Upper | Curved Radiator Hose | ||
| 1995 | BMW | 318ti | Upper | Curved Radiator Hose | ||
| 1994 | BMW | 318i | Upper | Curved Radiator Hose | ||
| 1994 | BMW | 318is | Upper | Curved Radiator Hose | ||
| 1994 | BMW | 525i | Lower | Curved Radiator Hose | ||
| 1993 | BMW | 318i | Upper | Curved Radiator Hose | ||
| 1993 | BMW | 318is | Upper | Curved Radiator Hose | ||
| 1993 | BMW | 525i | Lower | Curved Radiator Hose | ||
| 1993 | BMW | 525iT | Lower | Curved Radiator Hose | ||
| 1992 | BMW | 318i | Upper | Curved Radiator Hose | ||
| 1992 | BMW | 318is | Upper | Curved Radiator Hose | ||
| 1992 | BMW | 525i | Lower | Curved Radiator Hose | ||
| 1991 | BMW | 318i | Upper | Curved Radiator Hose | ||
| 1991 | BMW | 318is | Upper | Curved Radiator Hose | ||
| 1985 | Mazda | RX-7 | 1.3L | R2 | Upper | Curved Radiator Hose |
| 1984 | Mazda | RX-7 | 1.3L | R2 | Upper | Curved Radiator Hose |
| 1979 | Mercedes-Benz | 300D | Upper | Curved Radiator Hose | ||
| 1979 | Mercedes-Benz | 300TD | Upper | Curved Radiator Hose | ||
| 1978 | Mercedes-Benz | 300D | Upper | Curved Radiator Hose | ||
| 1977 | Mercedes-Benz | 300D | Upper | Curved Radiator Hose | ||
| 1976 | Mercedes-Benz | 300D | Upper | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||
| 1975 | Mercedes-Benz | 300D | Upper | Compatible with vehicles containing air conditioning.; Curved Radiator Hose | ||
| 1970 | Chevrolet | Bel Air | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1970 | Chevrolet | Caprice | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1970 | Chevrolet | Impala | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1969 | Chevrolet | Bel Air | 6.5L | V8 | Upper | Curved Radiator Hose |
| 1969 | Chevrolet | Bel Air | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1969 | Chevrolet | Camaro | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1969 | Chevrolet | Caprice | 6.5L | V8 | Upper | Curved Radiator Hose |
| 1969 | Chevrolet | Caprice | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1969 | Chevrolet | Impala | 6.5L | V8 | Upper | Curved Radiator Hose |
| 1969 | Chevrolet | Impala | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1969 | Ford | LTD | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1969 | Ford | Thunderbird | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1969 | GMC | G15/G1500 Van | 5.0L | V8 | Upper | w/o Roof A.C.; Curved Radiator Hose |
| 1969 | GMC | G25/G2500 Van | 5.0L | V8 | Upper | w/o Roof A.C.; Curved Radiator Hose |
| 1969 | Mercury | Marauder | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1969 | Mercury | Marquis | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1968 | Chevrolet | Bel Air | 6.5L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1968 | Chevrolet | Bel Air | 7.0L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1968 | Chevrolet | Caprice | 6.5L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1968 | Chevrolet | Caprice | 7.0L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1968 | Chevrolet | Impala | 6.5L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1968 | Chevrolet | Impala | 7.0L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1968 | Ford | Thunderbird | 6.4L | V8 | Upper | Curved Radiator Hose |
| 1968 | Ford | Thunderbird | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1968 | GMC | G15/G1500 Van | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1968 | GMC | G25/G2500 Van | 5.0L | V8 | Upper | Curved Radiator Hose |
| 1968 | Lincoln | Continental | 7.5L | V8 | Upper | Curved Radiator Hose |
| 1968 | Lincoln | Continental | 7.6L | V8 | Upper | Curved Radiator Hose |
| 1967 | Chevrolet | Bel Air | 4.6L | V8 | Upper | w/o A.C., w/A.P.; Curved Radiator Hose |
| 1967 | Chevrolet | Bel Air | 5.3L | V8 | Upper | w/o A.C., w/A.P.; Curved Radiator Hose |
| 1967 | Chevrolet | Bel Air | 6.5L | V8 | Upper | Curved Radiator Hose |
| 1967 | Chevrolet | Bel Air | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1967 | Chevrolet | Caprice | 4.6L | V8 | Upper | w/o A.C., w/A.P.; Curved Radiator Hose |
| 1967 | Chevrolet | Caprice | 5.3L | V8 | Upper | w/o A.C., w/A.P.; Curved Radiator Hose |
| 1967 | Chevrolet | Caprice | 6.5L | V8 | Upper | Curved Radiator Hose |
| 1967 | Chevrolet | Caprice | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1967 | Chevrolet | El Camino | 4.6L | V8 | Upper | w/o A.C., w/A.P.; Curved Radiator Hose |
| 1967 | Chevrolet | El Camino | 5.3L | V8 | Upper | w/o A.C., w/A.P.; Curved Radiator Hose |
| 1967 | Chevrolet | El Camino | 6.5L | V8 | Upper | Curved Radiator Hose |
| 1967 | Chevrolet | Impala | 5.4L | V8 | Upper | w/o A.C., w/A.P.; Curved Radiator Hose |
| 1967 | Chevrolet | Impala | 4.6L | V8 | Upper | w/o A.C., w/A.P.; Curved Radiator Hose |
| 1967 | Chevrolet | Impala | 6.5L | V8 | Upper | Curved Radiator Hose |
| 1967 | Chevrolet | Impala | 7.0L | V8 | Upper | Curved Radiator Hose |
| 1967 | Chevrolet | Impala | 5.3L | V8 | Upper | w/o A.C., w/A.P.; Curved Radiator Hose |
| 1967 | Chevrolet | Malibu | 4.6L | V8 | Upper | w/o A.C., w/A.P.; Curved Radiator Hose |
| 1967 | Chevrolet | Malibu | 5.3L | V8 | Upper | w/o A.C., w/A.P.; Curved Radiator Hose |
| 1967 | Chevrolet | Malibu | 6.5L | V8 | Upper | Curved Radiator Hose |
| 1967 | GMC | G15/G1500 Van | 4.6L | V8 | Upper | Curved Radiator Hose |
| 1967 | GMC | G25/G2500 Van | 4.6L | V8 | Upper | Curved Radiator Hose |
| 1966 | Chevrolet | Bel Air | 6.5L | V8 | Upper | w/o A.C., w/o A.P.; Curved Radiator Hose |
| 1966 | Chevrolet | Bel Air | 7.0L | V8 | Upper | w/o A.C., w/o A.P.; Curved Radiator Hose |
| 1966 | Chevrolet | Caprice | 6.5L | V8 | Upper | w/o A.C., w/o A.P.; Curved Radiator Hose |
| 1966 | Chevrolet | Caprice | 7.0L | V8 | Upper | w/o A.C., w/o A.P.; Curved Radiator Hose |
| 1966 | Chevrolet | Impala | 6.5L | V8 | Upper | w/o A.C., w/o A.P.; Curved Radiator Hose |
| 1966 | Chevrolet | Impala | 7.0L | V8 | Upper | w/o A.C., w/o A.P.; Curved Radiator Hose |
| 1966 | Chrysler | 300 | 6.3L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1966 | Chrysler | 300 | 7.2L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1966 | Chrysler | Imperial | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1966 | Chrysler | New Yorker | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1966 | Chrysler | Newport | 6.3L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1966 | Chrysler | Newport | 7.2L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1966 | Chrysler | Town & Country | 6.3L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1966 | Dodge | Monaco | 6.3L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1966 | Dodge | Monaco | 7.2L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1965 | Chevrolet | Corvette | 5.3L | V8 | Upper | Curved Radiator Hose |
| 1965 | Chrysler | 300 | 6.8L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1965 | Chrysler | 300 | 6.3L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1965 | Chrysler | 300 | 6.7L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1965 | Chrysler | Imperial | 6.8L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1965 | Chrysler | Imperial | 6.7L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1965 | Chrysler | New Yorker | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1965 | Chrysler | Newport | 6.3L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1965 | Dodge | Monaco | 6.7L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1965 | Dodge | Monaco | 7.0L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1958 | Chrysler | 300 | 6.4L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1958 | Chrysler | Imperial | 6.4L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1958 | Chrysler | New Yorker | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1958 | Chrysler | Town & Country | 6.4L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1957 | Chrysler | 300 | 6.4L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1957 | Chrysler | Imperial | 6.4L | V8 | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose |
| 1957 | Chrysler | New Yorker | Upper | Fits vehicles without air conditioning.; Curved Radiator Hose | ||
| 1957 | Chrysler | Newport | 6.4L | V8 | Upper | Fits vehicles without air conditioning.; 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.