Dayco 72378 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 72378

The Dayco Curved Radiator Hose 72378 is designed to provide reliable coolant flow for select GM vehicles. Engineered with durable EPDM material and a protective sleeve, this radiator coolant hose supports efficient engine cooling in Buick, Chevrolet, GMC, and Saturn models.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Black color with a protective sleeve for added durability
• Curved single inside diameter hose with 1 5/16 inch inside diameter at both ends
• Outside diameter measures 1 11/16 inches on both ends
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Compatible with Buick, Chevrolet, GMC, and Saturn SUVs including Acadia, Acadia Limited, Enclave, Outlook, and Traverse

Dayco Curved Radiator Hose Product Line Details

The Curved Radiator Hose line by Dayco focuses on delivering hoses shaped to fit specific engine layouts, reducing stress and improving coolant flow. This product line emphasizes precise fitment and durability, making it suitable for the cooling systems of various GM crossover and SUV models. The 72378 part number represents a hose designed to maintain optimal coolant circulation while resisting heat and wear.

Technical Description and Specifications

This radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. The hose features a single inside diameter of 1 5/16 inches on both ends, ensuring consistent flow and compatibility with factory fittings. The outside diameter of 1 11/16 inches provides a secure seal when clamped. A protective sleeve is included to guard against abrasion and external damage, although this hose does not contain a heat shield. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive cooling systems.

Compatible Vehicles and Common Applications

• Replacement radiator hose for Buick Acadia and Acadia Limited
• Compatible with Chevrolet Traverse and GMC Acadia models
• Fits Saturn Outlook and GMC Enclave cooling systems
• Used to maintain proper coolant flow and prevent overheating
• Addresses issues such as cracked or leaking radiator hoses and coolant loss

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 72378, ensure the engine is cool to avoid burns. Remove the old hose carefully, inspecting clamps and fittings for wear. Clean the connection points before fitting the new hose. The protective sleeve should face areas prone to abrasion. Tighten clamps securely but avoid over-tightening to prevent hose damage. Verify there are no leaks after installation by running the engine and checking coolant flow.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72378 to meet industry standards for durability and performance. The hose complies with SAE specifications, ensuring reliable operation under normal driving conditions. While specific warranty details are not provided here, Dayco products typically come with manufacturer-backed quality assurance. For warranty information, refer to Dayco’s official documentation or contact authorized distributors.