Gates 12274 HVAC Heater Hose - Heater Inlet

Overview of Gates Molded Heater Hose 12274

The Gates Molded Heater Hose 12274 is designed specifically for HVAC systems in select Cadillac and GMC vehicles. Engineered with durable EPDM material, this molded heater hose ensures reliable performance and precise fitment for models like the Cadillac XT5 and GMC Acadia.

• Constructed from high-quality EPDM for heat and chemical resistance
• Molded design for exact fit and easy installation
• Centerline length of 23.98 inches (609 mm) for accurate replacement
• End 1 inside diameter: 0.75 inches (19 mm)
• End 2 inside diameter: 0.8 inches (20 mm)
• Compatible with Cadillac Acadia, Acadia Limited, and XT5 models

Detailed Product Description

The Gates Molded Heater Hose 12274 is part of the Molded Heater Hose product line, which focuses on delivering precision-engineered hoses for HVAC applications. This hose is molded to exact specifications, providing a secure and leak-resistant connection within the heating system. Made from EPDM, it offers excellent resistance to heat, ozone, and automotive fluids, ensuring durability under demanding operating conditions. The hose features a centerline length of 23.98 inches (609 mm) and two different inside diameters at each end—0.75 inches (19 mm) and 0.8 inches (20 mm)—to match the OEM requirements for proper fitment and flow.

Compatible Vehicles and Applications

This HVAC heater hose is compatible with the following vehicles:

• Cadillac Acadia
• Cadillac Acadia Limited
• Cadillac XT5
• GMC Acadia

It is designed to replace worn or damaged heater hoses in these models, ensuring efficient heating system operation and preventing coolant leaks.

Common Issues Addressed by This Heater Hose

• Heater hose leaks causing coolant loss
• Cracked or brittle hoses due to heat exposure
• Reduced heater performance from restricted coolant flow
• Swollen or deformed hoses affecting HVAC system pressure
• OEM hose failure from aging or wear

Installation Notes and Tips

When installing the Gates Molded Heater Hose 12274, ensure the vehicle is cool and the cooling system is depressurized. Verify the hose orientation matches the molded shape for proper fit. Inspect all clamps and connections for wear and replace if necessary to prevent leaks. Properly route the hose to avoid contact with moving parts or sharp edges that could cause premature damage.

Quality Assurance and Warranty

Gates is a recognized manufacturer of automotive hoses, and the Molded Heater Hose 12274 is produced to meet or exceed OEM specifications. The EPDM material and molded construction provide long-lasting durability. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed quality assurance to support reliable performance in Cadillac and GMC HVAC systems.