AUTOKAY HVAC Inlet Heater Hose 20765678 — Direct-Fit for Buick Enclave 2008–2017, OEM-Style

AUTOKAY 20765678 is a direct-fit HVAC inlet heater hose engineered to replace the factory line in select Buick, GMC, Chevrolet and Saturn SUVs from 2007–2017.

This replacement inlet heater hose restores the coolant flow path that routes warm engine coolant into the vehicle’s heater core. Designed to match the original equipment routing and connection points, the AUTOKAY hose is offered as a cost-effective service part when the stock hose shows age-related cracking, leaks, or soft spots. It ships ready to install and includes the part number 20765678 so you can confirm compatibility with your vehicle.

Which vehicles will accept this AUTOKAY inlet heater hose?

The AUTOKAY 20765678 hose is made to fit a range of GM midsize and large crossover SUVs. It covers multiple model years across several nameplates, matching the original part’s length, bends, and end fittings for direct replacement without modification.

• Buick Enclave: 2008–2017
• GMC Acadia: 2007–2016; Acadia Limited: 2017
• Chevrolet Traverse: 2009–2017
• Saturn Outlook: 2007–2010

How does this hose compare to the factory component?

Built to the same basic dimensions and connection style as the original part, the AUTOKAY hose provides a like-for-like replacement for worn or damaged factory hoses. Material selection and reinforcement aim to resist common failure modes such as cracking from heat cycles and softening from coolant exposure.

• Direct-fit geometry for OEM routing and clamps
• Durable rubber compound with reinforcement layers
• Marked with the replacement part number 20765678 for verification

What should I check before installing this inlet heater hose?

Confirm year, make and model compatibility and compare the hose shape to the old unit. Also inspect adjacent components—clamps, heater core connections, and nearby wiring—to ensure the replacement installs cleanly and prevents future leaks.

• Verify part number 20765678 against the old hose
• Replace worn clamps or corroded fittings during installation
• Flush or top up coolant per factory recommendations after fitting

How long should I expect this replacement to last?

Lifespan depends on operating conditions, maintenance, and coolant condition; a properly installed inlet heater hose typically lasts several years under normal driving. Regular cooling-system checks and using manufacturer-specified coolant will help extend service life and reduce premature deterioration.

• Service life varies with heat cycles and coolant quality
• Inspect hoses yearly for softness, swelling or cracks
• Replace immediately if any coolant seepage or damage is observed

Who is this for: The AUTOKAY 20765678 inlet heater hose is aimed at DIY mechanics, independent repair shops, and fleet technicians who need a reliable, direct replacement for HVAC heater lines on compatible GM SUVs. If your Buick Enclave, GMC Acadia/Acadia Limited, Chevrolet Traverse, or Saturn Outlook shows signs of a failing heater hose, this part provides a straightforward swap to restore heater-core coolant flow and prevent interior heater issues or engine bay leaks.

• Replace Part Number: 20765678
• Engine Heater Hose Fits for Saturn Outlook 2007-2010
• Engine Heater Hose Fits for Buick Enclave 2008-2017
• Engine Heater Hose Fits for Chevrolet Traverse 2009-2017
• Engine Heater Hose Fits for GMC Acadia 2007-2016; Acadia Limited 2017