APDI 9010165 HVAC Heater Core - Rear

APDI 9010165 Heater Core for GM Rear HVAC

The APDI 9010165 heater core is a direct-fit HVAC heater core for GM rear heating systems. Built with aluminum core and tank construction, it provides the compact dimensions needed for select Chevrolet G10, G20, and G30 vans as well as GMC G1500, G2500, and G3500 applications.

APDI Heater Core line products focus on replacement fit and OE-style construction for heating system service. This APDI heater core 9010165 is specified as a GM heater core and is sized for rear HVAC use in the listed van applications.

• Aluminum core material for efficient heat transfer
• Aluminum tank material for consistent construction
• Core height: 7 in.
• Core width: 6-1/4 in.
• Core thickness: 1-1/4 in.
• Inlet pipe diameter: 5/8 in.
• Outlet pipe diameter: 3/4 in.
• Rear HVAC heater core application

Detailed Description

APDI 9010165 is an HVAC heater core for GM rear heater systems, engineered with aluminum construction throughout the core and tanks. Its compact size and tube diameters are matched to the listed Chevrolet G10, G20, and G30 rear heater core applications, along with GMC G1500, G2500, and G3500 rear heater core applications from 1981-1995. If you are servicing a Chevrolet G10 rear heater core or a GMC G2500 rear HVAC heater core, this part number is a direct replacement option to compare against the original unit.

This part cross-references Four Seasons 98611 for the same application.

Common Problems This Part Can Address

• Loss of cabin heat from a leaking rear heater core
• Coolant odor inside the vehicle from heater core seepage
• Wet carpet or moisture near the rear HVAC area
• Restricted heat output caused by internal core blockage
• Corrosion-related failure in an aging GM rear heater core

Installation Notes and Tips

Verify core height, width, thickness, and inlet/outlet pipe diameters before installation. Confirm rear HVAC placement and compare the original heater core to APDI 9010165 before reassembly. Flush the cooling system and inspect hoses, clamps, and seals during service to help prevent repeat leaks. For Chevrolet G20 rear heater core and GMC G3500 rear heater core applications, matching the original routing and connection points is important for proper fit.

Quality Assurance

APDI heater core replacement parts are built for application-specific fitment in GM heating systems. This aluminum heater core is listed for 1981-1995 Chevrolet G10, G20, and G30 rear applications and 1981-1995 GMC G1500, G2500, and G3500 rear applications, with dimensions and pipe sizes provided for verification before installation.