Dayco 71383 Radiator Coolant Hose - Lower - Pipe To Water Pump or Lower - Tee To Radiator

Overview of Dayco Curved Radiator Hose 71383

The Dayco Curved Radiator Hose 71383 is designed to provide reliable coolant flow for select BMW and Toyota vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and long-lasting performance in demanding engine environments.

• Constructed from high-quality EPDM for heat and chemical resistance
• Dual inside diameters: 1 5/16 inches and 1 7/16 inches for precise fitment
• Black color for standard OEM appearance
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 7 3/4 inches to accommodate curved radiator connections
• Compatible with BMW M3 and Toyota 4Runner and Pickup models

Detailed Product Description

The Dayco Curved Radiator Hose 71383 is part of the Curved Radiator Hose product line, which focuses on delivering hoses shaped to fit specific radiator and engine configurations. This hose features a dual inside diameter design, measuring 1 5/16 inches on one end and 1 7/16 inches on the other, allowing it to connect different sized fittings securely. Made from EPDM, the hose resists heat, ozone, and coolant chemicals, making it suitable for extended use in automotive cooling systems. The black finish matches OEM standards, maintaining the original engine bay appearance. This hose does not include a heat shield or protective sleeve, so it is intended for applications where additional protection is not required.

Compatible Vehicles and Applications

• Designed for BMW M3 models requiring a curved radiator coolant hose
• Fits Toyota 4Runner and Pickup models needing a dual inside diameter radiator hose
• Ideal for replacing worn or damaged radiator coolant hoses in these vehicles
• Helps maintain proper coolant flow and engine temperature regulation
• Addresses issues such as coolant leaks, hose swelling, and cracking

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71383, ensure the hose is properly seated on radiator and engine fittings matching the specified inside diameters. Inspect clamps and surrounding components for wear and replace if necessary to prevent leaks. Since this hose does not include a heat shield or protective sleeve, avoid routing near extreme heat sources or sharp edges. Proper installation will help maintain coolant system integrity and prevent premature hose failure.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71383 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses. The use of EPDM material provides resistance to heat and coolant chemicals, contributing to durability. Warranty details are provided by Dayco and should be confirmed at the time of purchase.