Nissens 707326 HVAC Heater Core

Nissens HVAC Heater Core for Tucson

The Nissens 707326 HVAC heater core is built for 2005-2009 Hyundai Tucson applications and follows OE specifications for fit and function. With aluminum core and tank construction, it is engineered for consistent cabin heat and a precise mounting-cassette fit in the HVAC module.

For Hyundai Tucson heater core replacement needs, this part number 707326 is a direct-fit option for restoring heat output and addressing cooling-system leaks at the heater core assembly.

Key Features

• Fits 2005-2009 Hyundai Tucson, N/A
• OE-specification design for factory-style fit and performance
• Aluminum core material and aluminum tank material
• Core dimensions: 8.46 in. length, 7.09 in. width, 1.30 in. thickness
• Inlet and outlet pipe diameter: 0.67 in.
• Pipes included for installation planning
• Part number 707326 for accurate ordering and catalog matching

Detailed Description

Nissens heater cores are manufactured and tested to OE specifications, with validation that includes vibration, pressure impulse, thermal expansion, corrosion, and burst testing. Those checks are used to reduce the risk of leakage, weak heating performance, and residue-related issues. The aluminum construction and finished mounting profile help the heater core seat smoothly in the HVAC module cassette on the 2005-2009 Hyundai Tucson. This Nissens 707326 heater core is a practical replacement when the original unit no longer delivers steady cabin heat or shows signs of internal failure.

This part cross-references Spectra Premium 98143 for the same application.

What It Helps Fix

• Weak or uneven cabin heat in a Hyundai Tucson
• Coolant seepage from a failing heater core
• Restricted heat transfer caused by internal corrosion or blockage
• Fogging or sweet coolant odor from heater core leakage
• HVAC heating performance loss tied to a worn core assembly

Installation Notes and Tips

Verify the core dimensions and inlet/outlet pipe size before installation. Confirm the HVAC module cassette condition and inspect coolant hoses, seals, and clamps during replacement. Proper system bleeding after installation helps restore normal heater operation and reduces trapped air in the cooling circuit.

Quality Assurance

Nissens manufactures and tests this heater core to OE-level specifications, with durability checks focused on leakage resistance, thermal stability, and corrosion performance. The part is finished for smooth fitment into the HVAC mounting cassette on the Hyundai Tucson platform.