Autotecnica GM0619840 HVAC Heater Hose Assembly - Inlet

HVAC Heater Hose Assembly for GM Applications

Autotecnica GM0619840 is an HVAC heater hose assembly built for inlet-side service on select Chevrolet, GMC, Cadillac, and Hummer vehicles. It uses molded VMQ construction with a black finish and includes clamps for a direct replacement-style repair.

• Molded HVAC heater hose assembly for inlet routing
• VMQ material with black exterior finish
• Clamps included for installation
• Maximum working pressure: 20
• Maximum bend angle: 180 degrees
• End 1 inside diameter: 14.9; End 2 inside diameter: 14.9
• Regular-grade replacement part

Fitment and Application Details

Compatible with 2001-2007 Chevrolet Silverado 1500, inlet; 2001-2006 Chevrolet Silverado 1500 HD, inlet; 2006-2007 Chevrolet Silverado 2500 HD, inlet; 2006-2007 Chevrolet Silverado 3500, inlet; 2001-2005 Chevrolet Suburban 1500, inlet; 2005 Chevrolet Suburban 2500, inlet; 2005 Chevrolet Tahoe, inlet; 2001-2007 GMC Sierra 1500, inlet; 2005-2007 GMC Sierra 1500 HD, inlet; 2005 GMC Yukon, inlet; 2005 GMC Yukon XL 1500, inlet; 2005 GMC Yukon XL 2500, inlet; 2002-2007 Cadillac Escalade, inlet; 2002-2004 Chevrolet Avalanche 1500, inlet; and 2003-2007 Hummer H2, inlet. This part cross-references Dorman - OE Solutions 626-557 for the same application.

For Chevrolet Silverado 1500 Classic, Silverado 1500 HD Classic, Silverado 2500 HD Classic, Silverado 3500 Classic, and GMC Sierra 1500 Classic or Sierra 1500 HD Classic, the inlet-side fitment applies to 2007 models without an auxiliary heater.

What This Hose Assembly Helps Address

• Cracked or leaking heater hose routing at the inlet connection
• Heat-related hose deterioration in the HVAC coolant circuit
• Restricted coolant flow caused by damaged hose sections
• Improper fit from a previous repair hose that does not match the molded shape
• Service issues on inlet-side heater hose applications for GM trucks and SUVs

Installation Notes and Quality Assurance

Verify the vehicle’s inlet-side configuration and confirm whether the application is without auxiliary heater before installation. Match the 14.9 inside diameter ends and the molded hose shape to the original routing, and inspect the connection points before securing the included clamps. Autotecnica manufactures replacement parts in accordance with ISO/TS 16949 QMS specifications and backs this part with a two-year, unlimited mileage warranty. Part number GM0619840 is also listed under Continental 62939 and Dayco 87848 for reference.