Dayco 72398 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 72398

The Dayco Curved Radiator Hose 72398 is designed for reliable coolant flow in Chevrolet and GMC vans. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and long-lasting performance for Express and Savana models.

• Constructed from high-quality EPDM for heat and chemical resistance
• Dual inside diameters: 1 1/2 inch and 1 3/4 inch for precise fitment
• Black color with protective sleeve for added durability
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards
• Compatible with Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500

Dayco Curved Radiator Hose Product Line Details

The Curved Radiator Hose line by Dayco focuses on providing hoses with specific bends and dual inside diameters to accommodate complex cooling system layouts. This product line emphasizes durability and fitment accuracy, making it suitable for heavy-duty applications such as those found in Chevrolet and GMC full-size vans.

Detailed Product Description

The Dayco 72398 radiator coolant hose is manufactured from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. The hose features a dual inside diameter design, measuring 1 1/2 inch on one end and 1 3/4 inch on the other, allowing it to connect different sized fittings securely. Its black color and protective sleeve enhance abrasion resistance, although it does not include a heat shield. The hose meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, ensuring compliance with industry standards for coolant hoses.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Chevrolet Express and GMC Savana vans
• Resolving coolant leaks caused by hose degradation or improper fit
• Addressing overheating issues due to restricted coolant flow
• Upgrading to a hose with protective sleeve for improved abrasion resistance
• Ensuring proper coolant system pressure and flow with correct hose dimensions

Installation Notes and Tips

Before installation, verify the hose dimensions and compatibility with your vehicle model. Ensure all clamps and fittings are clean and free of debris. When installing the Dayco 72398 hose, position the protective sleeve to areas prone to abrasion. Avoid twisting the hose during installation to maintain its integrity and fit. Properly tighten clamps to prevent leaks but avoid over-tightening which can damage the hose.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72398 to meet strict SAE standards, providing reliable performance in demanding automotive cooling systems. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed quality assurance to support durability and fitment accuracy for Chevrolet Express and GMC Savana vehicles.