Dayco 70036 HVAC Heater Hose - Heater Inlet

Dayco 70036 Heater Inlet Hose

Dayco 70036 is an HVAC heater hose for the heater inlet side on select heavy-duty Chevrolet and GMC trucks. It is built for 2015-2019 Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, and Sierra 3500 HD applications that require a direct-fit heater inlet hose.

Key Features

• HVAC heater hose for the heater inlet position
• Fits 2015-2019 Chevrolet Silverado 2500 HD, heater inlet
• Fits 2015-2019 Chevrolet Silverado 3500 HD, heater inlet
• Fits 2015-2019 GMC Sierra 2500 HD, heater inlet
• Fits 2015-2019 GMC Sierra 3500 HD, heater inlet
• Dayco part number 70036 for catalog and service matching

Detailed Description

When servicing the heater circuit on a Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, or Sierra 3500 HD, the heater inlet hose is a critical connection in the HVAC system. Dayco 70036 is listed for the heater inlet position on these 2015-2019 trucks, making it a direct reference for replacement planning and parts lookup. This part number, 70036, is the correct identifier to use when matching the hose to the vehicle and position.

What It Helps Address

• Coolant leakage at the heater inlet hose connection
• Cracked, hardened, or swollen heater hose material
• Restricted coolant flow through the HVAC heater circuit
• Loss of cabin heat caused by a damaged inlet hose
• Service replacement for worn heater hose routing on HD trucks

Installation Notes

Verify the vehicle year, make, model, and heater inlet position before ordering. Compare the original hose routing, end connections, and length against the removed part to confirm Dayco 70036 is the correct match for your Silverado or Sierra application. Proper coolant service procedures should be followed during replacement.

Quality Assurance

Dayco is a recognized name in automotive hose and belt components, and part number 70036 is cataloged for the specified heavy-duty Chevrolet and GMC heater inlet applications. This part cross-references Monroe Shocks & Struts (e.g., 172286) for the same application.