Dayco 70744 Radiator Coolant Hose

Dayco 70744 Curved Radiator Hose Overview

Dayco 70744 is a curved radiator coolant hose built for cooling-system service on select Chrysler, Dodge, Mazda, and Toyota applications. Made from EPDM rubber and formed as a single I.D. hose, it provides a direct replacement option for vehicles that need a 1 1/2-inch hose at both ends.

This Dayco Curved Radiator Hose line is focused on OE-style cooling-system replacement, with application-specific bends that help match factory routing. For shoppers searching for a radiator hose for a 1989-1995 Mazda MPV or a curved upper hose for a Toyota Land Cruiser FJ40, part number 70744 is listed for multiple classic and light-duty applications.

Key Features

• EPDM construction for cooling-system use
• Black finish for a factory-style appearance
• 1 1/2-inch inside diameter at both ends
• Single I.D. hose design
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Curved hose profile for routed radiator connections
• Dayco part number 70744

Detailed Product Description

Dayco 70744 is a radiator coolant hose designed for upper and lower cooling-system connections across a range of older domestic and import vehicles. The EPDM rubber construction is suited for coolant exposure and temperature cycling, while the curved shape helps follow the original hose path in applications such as the Mazda MPV, Toyota Land Cruiser, and several Dodge and Chrysler models. If you are replacing a worn upper radiator hose on a Dodge Dart or a curved coolant hose on a Toyota Land Cruiser, this part number is listed for those service needs.

This hose cross-references Gates 20945 for the same application.

Vehicle Fitment

• Fits 1989-1995 Mazda MPV, Lower - Curved Radiator Hose
• Fits 1982-1983 Toyota Land Cruiser, Upper - Pipe To Radiator, FJ40; Curved Radiator Hose
• Fits 1982-1983 Toyota Land Cruiser, Upper - Water Pump To Pipe, FJ40; Curved Radiator Hose
• Fits 1981 Toyota Land Cruiser, Upper - Pipe To Radiator, Curved Radiator Hose
• Fits 1981 Toyota Land Cruiser, Upper - Water Pump To Pipe, Curved Radiator Hose
• Fits 1978 Chrysler LeBaron, Upper, fits vehicles without air conditioning; Curved Radiator Hose
• Fits 1978 Chrysler Town & Country, Upper, fits vehicles without air conditioning; Curved Radiator Hose
• Fits 1976-1978 Dodge Aspen, Upper, fits vehicles without air conditioning; Curved Radiator Hose
• Fits 1975-1978 Dodge B100, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1975-1978 Dodge B200, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1975-1978 Dodge B300, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1975-1978 Dodge D100, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1977-1978 Dodge D150, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1975-1978 Dodge D200, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1975-1978 Dodge D300, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1977-1978 Dodge Monaco, Upper, fits vehicles without air conditioning; Curved Radiator Hose
• Fits 1974-1978 Dodge Ramcharger, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1978 Dodge W150, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1975-1978 Dodge W200, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1975-1978 Dodge W300, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1975-1977 Dodge W100, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1976 Dodge Charger, Upper, w/o A.C., Std. Rad.; Curved Radiator Hose
• Fits 1975-1976 Dodge Dart, Upper, compatible with vehicles containing air conditioning; Curved Radiator Hose
• Fits 1970-1973 Dodge Dart, Upper, compatible with vehicles containing air conditioning; Curved Radiator Hose
• Fits 1975-1976 Dodge Dart, Upper, fits vehicles without air conditioning; Curved Radiator Hose
• Fits 1974 Dodge Charger, Upper, Curved Radiator Hose
• Fits 1974 Dodge Dart, Upper, Curved Radiator Hose
• Fits 1973 Dodge Charger, Upper, radiator coolant hose for H.D. vehicles; Curved Radiator Hose
• Fits 1970-1972 Dodge Charger, Upper, compatible with vehicles containing air conditioning; Curved Radiator Hose
• Fits 1970-1971 Dodge Challenger, Upper, compatible with vehicles containing air conditioning; Curved Radiator Hose

Installation Notes and Tips

Confirm the hose routing, end diameters, and position before installation. This part is listed for upper and lower radiator connections depending on application, so match the vehicle year, make, model, and position exactly. Inspect the radiator neck, water pump outlet, and pipe surfaces for corrosion or damage before installing the new hose.

For best sealing, clean the mating surfaces and verify clamp condition during service. On vehicles with air conditioning or heavy-duty cooling configurations, use the fitment notes to confirm the correct application before ordering Dayco 70744.

Quality Assurance

Dayco lists this hose to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, supporting standardized cooling-system requirements for the listed applications. The EPDM construction and application-specific curved profile reflect a replacement hose built for direct-fit cooling service on select Mazda MPV, Toyota Land Cruiser, and Dodge models.