Dorman 626-781 HVAC Heater Hose Assembly - Outlet
Dorman 626-781 Heater Hose Assembly
This Dorman HVAC heater hose assembly is a direct-fit replacement for select Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as GMC Sierra 2500 HD and Sierra 3500 HD models. It addresses a common failure point in the original hose design by using an upgraded aluminum Y-connector instead of the plastic version.
- OE FIX replacement for the HVAC heater hose assembly
- Upgraded aluminum Y-connector helps reduce repeat cracking failures
- Branched molded hose assembly with EPDM construction
- Black hose assembly with molded routing for factory-style fit
- Standard replacement grade for service repair applications
- Fits outlet position on select 2007-2014 heavy-duty GM trucks
Built for Heavy-Duty GM Truck Fitment
Dorman 626-781 is engineered for the heater hose outlet routing used on 2007-2014 Chevrolet Silverado 2500 HD and Silverado 3500 HD, plus 2007-2014 GMC Sierra 2500 HD and Sierra 3500 HD models. The molded branched layout follows the original hose path, while the aluminum Y-connector replaces the plastic component that commonly cracks from heat and age. This part cross-references Gates 23385 for the same application.
Common Problems This Part Can Address
- Coolant leaks from a cracked heater hose Y-connector
- Loss of heater performance caused by coolant loss
- Broken or brittle plastic connector failure in the original assembly
- Improper hose routing from a worn or damaged factory hose
- Repeat repairs caused by aging OE heater hose materials
Installation Notes and Tips
Verify outlet-position fitment before installation on your Silverado or Sierra application. Inspect adjoining coolant hoses and connection points for wear, corrosion, or residue before transferring the new assembly into service. Clamps are not included, so reuse or replace the existing clamps as needed during installation.
Quality Assurance
Dorman OE FIX parts are built to improve on a known failure point in the original design while maintaining factory-style fitment and routing. Part number 626-781 is intended for direct replacement service on the listed Chevrolet and GMC heavy-duty truck applications.
Dorman 626-781 HVAC Heater Hose Assembly - Outlet
Dorman 626-781 Heater Hose Assembly
This Dorman HVAC heater hose assembly is a direct-fit replacement for select Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as GMC Sierra 2500 HD and Sierra 3500 HD models. It addresses a common failure point in the original hose design by using an upgraded aluminum Y-connector instead of the plastic version.
- OE FIX replacement for the HVAC heater hose assembly
- Upgraded aluminum Y-connector helps reduce repeat cracking failures
- Branched molded hose assembly with EPDM construction
- Black hose assembly with molded routing for factory-style fit
- Standard replacement grade for service repair applications
- Fits outlet position on select 2007-2014 heavy-duty GM trucks
Built for Heavy-Duty GM Truck Fitment
Dorman 626-781 is engineered for the heater hose outlet routing used on 2007-2014 Chevrolet Silverado 2500 HD and Silverado 3500 HD, plus 2007-2014 GMC Sierra 2500 HD and Sierra 3500 HD models. The molded branched layout follows the original hose path, while the aluminum Y-connector replaces the plastic component that commonly cracks from heat and age. This part cross-references Gates 23385 for the same application.
Common Problems This Part Can Address
- Coolant leaks from a cracked heater hose Y-connector
- Loss of heater performance caused by coolant loss
- Broken or brittle plastic connector failure in the original assembly
- Improper hose routing from a worn or damaged factory hose
- Repeat repairs caused by aging OE heater hose materials
Installation Notes and Tips
Verify outlet-position fitment before installation on your Silverado or Sierra application. Inspect adjoining coolant hoses and connection points for wear, corrosion, or residue before transferring the new assembly into service. Clamps are not included, so reuse or replace the existing clamps as needed during installation.
Quality Assurance
Dorman OE FIX parts are built to improve on a known failure point in the original design while maintaining factory-style fitment and routing. Part number 626-781 is intended for direct replacement service on the listed Chevrolet and GMC heavy-duty truck applications.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Dorman 626-781 Heater Hose Assembly
This Dorman HVAC heater hose assembly is a direct-fit replacement for select Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as GMC Sierra 2500 HD and Sierra 3500 HD models. It addresses a common failure point in the original hose design by using an upgraded aluminum Y-connector instead of the plastic version.
- OE FIX replacement for the HVAC heater hose assembly
- Upgraded aluminum Y-connector helps reduce repeat cracking failures
- Branched molded hose assembly with EPDM construction
- Black hose assembly with molded routing for factory-style fit
- Standard replacement grade for service repair applications
- Fits outlet position on select 2007-2014 heavy-duty GM trucks
Built for Heavy-Duty GM Truck Fitment
Dorman 626-781 is engineered for the heater hose outlet routing used on 2007-2014 Chevrolet Silverado 2500 HD and Silverado 3500 HD, plus 2007-2014 GMC Sierra 2500 HD and Sierra 3500 HD models. The molded branched layout follows the original hose path, while the aluminum Y-connector replaces the plastic component that commonly cracks from heat and age. This part cross-references Gates 23385 for the same application.
Common Problems This Part Can Address
- Coolant leaks from a cracked heater hose Y-connector
- Loss of heater performance caused by coolant loss
- Broken or brittle plastic connector failure in the original assembly
- Improper hose routing from a worn or damaged factory hose
- Repeat repairs caused by aging OE heater hose materials
Installation Notes and Tips
Verify outlet-position fitment before installation on your Silverado or Sierra application. Inspect adjoining coolant hoses and connection points for wear, corrosion, or residue before transferring the new assembly into service. Clamps are not included, so reuse or replace the existing clamps as needed during installation.
Quality Assurance
Dorman OE FIX parts are built to improve on a known failure point in the original design while maintaining factory-style fitment and routing. Part number 626-781 is intended for direct replacement service on the listed Chevrolet and GMC heavy-duty truck applications.
