Nissens 72040 HVAC Heater Core - Rear

Nissens 72040 Rear HVAC Heater Core

The Nissens 72040 HVAC heater core is a rear auxiliary HVAC replacement built with an aluminum core and plastic tanks for the Mercedes-Benz Sprinter platform. It is a direct-fit service part for rear heating systems in Sprinter 2500, Sprinter 3500, and Sprinter 3500XD applications.

Key Features

• Aluminum core construction for efficient heat transfer
• Plastic tank material for OE-style thermal system design
• Mechanically jointed cooling fins for consistent core assembly
• Rear HVAC heater core for auxiliary heating circuits
• Pipe not included
• Cross-references Nissens 98042 for the same application

Detailed Description

Nissens part number 72040 is an HVAC heater core engineered for rear auxiliary HVAC use in Mercedes-Benz Sprinter vans. It is listed for 2010-2018 Mercedes-Benz Sprinter 2500, rear; 2010-2018 Mercedes-Benz Sprinter 3500, rear; and 2018 Mercedes-Benz Sprinter 3500XD, rear. This heater core uses an aluminum core with plastic tanks and mechanically jointed cooling fins to match the construction commonly used in vehicle thermal systems. For buyers searching for a Mercedes-Benz Sprinter 2500 rear heater core or a Mercedes-Benz Sprinter 3500 rear auxiliary HVAC heater core, 72040 provides the specified fitment and construction details needed for service replacement.

Nissens develops thermal and engine-efficiency components for the aftermarket with a focus on consistent manufacturing standards across its range. Part number 72040 is also associated with OE-style reference numbers 0038359001 and A0038359001.

Common Reasons for Replacement

• Rear cabin heat is weak or uneven
• Coolant odor or moisture appears near the rear HVAC housing
• Heater core leakage is found during diagnosis
• Restricted heat output from the auxiliary HVAC circuit
• Corrosion or internal blockage affects rear heating performance

Installation Notes and Tips

Verify rear auxiliary HVAC fitment by model year before installation. Inspect hoses, seals, and the surrounding HVAC case for wear or contamination before transferring the new heater core into service. Pipe is not included, so confirm the existing connections are serviceable and clean before assembly.

Quality Assurance

Nissens manufactures thermal management components to defined quality standards, and this heater core follows the brand’s established aftermarket production approach for HVAC service parts.