Nissens 72046 HVAC Heater Core - Front or Right

Nissens 72046 HVAC Heater Core

The Nissens 72046 HVAC heater core is an aluminum replacement part built for Mercedes-Benz heating systems that need reliable cabin heat transfer. With brazed cooling fins and aluminum core and tank construction, it supports efficient thermal performance in a compact OE-style design.

Key Features

• Aluminum core material for efficient heat exchange
• Aluminum tank material for consistent thermal durability
• Brazed cooling fins for a secure, compact construction
• Core dimensions: 7.9500 in. height, 6.5700 in. length, 1.2600 in. width
• Pipe included: No
• Part number 72046 for direct identification

Detailed Description

Nissens 72046 is an HVAC heater core designed for Mercedes-Benz GL-Class, ML-Class, and R-Class applications listed below. It is built with aluminum throughout and brazed cooling fins to support heat transfer inside the vehicle’s heater system. Nissens develops thermal components with a focus on consistent manufacturing quality, and this heater core follows that approach for replacement service in front-mounted and other listed positions. This part cross-references Spectra Premium 98136 and Valeo 600651 for the same application.

Vehicle Fitment

• Fits 2010-2012 Mercedes-Benz GL350, Front
• Fits 2007-2012 Mercedes-Benz GL450, Front
• Fits 2008-2012 Mercedes-Benz GL550, Front
• Fits 2006-2012 Mercedes-Benz R350, Front
• Fits 2006-2011 Mercedes-Benz ML350, N/A
• Fits 2010-2011 Mercedes-Benz ML450, N/A
• Fits 2008-2011 Mercedes-Benz ML550, N/A
• Fits 2007-2011 Mercedes-Benz ML63 AMG, N/A
• Fits 2007-2009 Mercedes-Benz GL320, Front
• Fits 2009 Mercedes-Benz ML320, N/A
• Fits 2007-2009 Mercedes-Benz R320, Front
• Fits 2007-2008 Mercedes-Benz ML320, Right
• Fits 2006-2007 Mercedes-Benz ML500, N/A
• Fits 2006-2007 Mercedes-Benz R500, Front
• Fits 2007 Mercedes-Benz R63 AMG, Front

Common Issues This Part Addresses

• Weak or uneven cabin heat output
• Restricted heat transfer from a corroded or clogged heater core
• Coolant seepage from a deteriorated heater core assembly
• Loss of defrost performance caused by poor heater system operation
• Temperature inconsistency in Mercedes-Benz GL350, GL450, ML350, and R350 models

Installation Notes and Tips

Verify the vehicle’s year, model, and heater core position before ordering. Confirm the core dimensions and compare the existing unit to the Nissens 72046 heater core during service. Because pipes are not included, reuse or source the required vehicle-specific connections as needed. Proper cooling system draining, flushing, and refill procedures help protect the new heater core after installation.

Quality Assurance

Nissens is a thermal-component manufacturer focused on aftermarket heating and engine-efficiency parts. The 72046 heater core is produced with aluminum construction and brazed fins to meet the demands of Mercedes-Benz heating system service.