Nissens 73980 HVAC Heater Core

Nissens 73980 HVAC Heater Core

The Nissens 73980 HVAC heater core is an aluminum replacement built for precise thermal transfer in select Audi and Volkswagen applications. It uses brazed cooling fins and aluminum tanks for a durable, OE-style construction that supports consistent cabin heat performance.

Compatible with 2015-2024 Audi A3, A3 Quattro, S3, RS3, Q3, and 2015-2024 Volkswagen Golf, GTI, Golf R, Jetta, Tiguan, Arteon, e-Golf, Golf Alltrack, Golf SportWagen, and A3 Sportback e-tron applications where the listed dimensions and notes match.

Key Features

• Part number 73980 heater core for HVAC repair and replacement
• Aluminum core material for efficient heat transfer
• Aluminum tank material for a lightweight, corrosion-resistant design
• Brazed cooling fins for stable construction and thermal performance
• Pipe not included
• Cross-references Spectra Premium 99384 and Valeo 715303 for the same application

Detailed Description

Nissens develops thermal management components with a focus on quality manufacturing and ongoing product development. The 73980 heater core follows that approach with an aluminum core and aluminum tanks, making it a direct-fit style HVAC component for vehicles that require the listed 170 x 184 x 26 dimensions. This part number 73980 is used across multiple Audi A3, Audi Q3, Audi S3, Audi RS3, and Volkswagen Golf, GTI, Golf R, Jetta, Tiguan, and Arteon fitments, including select e-Golf and A3 Sportback e-tron applications.

This heater core is a practical choice when restoring heat output in the cabin, replacing a leaking core, or correcting temperature inconsistency in the HVAC system. For fitment-specific searches, this Nissens heater core 73980 is commonly referenced for Audi A3 heater core replacement and Volkswagen GTI heater core replacement applications.

What It Helps Fix

• Weak or uneven cabin heat
• Coolant odor inside the vehicle
• Interior windshield fogging from heater core leakage
• Coolant loss traced to the HVAC system
• Restricted heat transfer from a worn or corroded core

Installation Notes

Verify the vehicle’s year, model, and listed dimensions before installation. This heater core does not include pipes, so reuse or source the required vehicle-specific connections as needed. Because HVAC access can vary by platform, compare the original unit’s size and configuration to the Nissens 73980 before beginning service.

Quality Assurance

Nissens positions its thermal products around consistent manufacturing standards and continued aftermarket development. The 73980 heater core is built as a quality replacement component for Audi and Volkswagen HVAC service, with materials and construction selected for dependable heat exchange and fitment accuracy.