Nissens 71770 HVAC Heater Core

Overview of Nissens HVAC Heater Core 71770

The Nissens HVAC Heater Core 71770 is engineered for reliable heating performance in select Mazda and Volvo vehicles. Designed with durable aluminum construction and brazed cooling fins, this heater core ensures efficient heat transfer and long-lasting operation.

• Core and tank made from corrosion-resistant aluminum
• Brazed cooling fins for enhanced heat dissipation
• Compact core dimensions: 7.32" height, 7.01" length, 1.26" width
• Includes pipe for straightforward installation
• Compatible with Mazda 3 and 5, Volvo C30, C70, S40, and V50 models

Detailed Product Features and Specifications

The Nissens heater core 71770 features an aluminum core and tank, providing resistance to corrosion and improved thermal conductivity compared to traditional materials. The brazed cooling fins construction enhances heat exchange efficiency, contributing to consistent cabin heating. With core dimensions of 7.32 inches in height, 7.01 inches in length, and 1.26 inches in width, this heater core fits precisely within the HVAC system of compatible vehicles. The included pipe simplifies the connection process during installation.

Compatible Vehicles and Application

This heater core is specifically designed for use in the following vehicles:

• Mazda 3 and Mazda 5 models
• Volvo C30, C70, S40, and V50 models

It is intended to replace faulty or leaking heater cores to restore proper heating function and prevent coolant leaks inside the vehicle cabin.

Common Issues Addressed by Nissens Heater Core 71770

• Insufficient cabin heat due to clogged or damaged heater core
• Coolant leaks inside the passenger compartment
• Overheating caused by inefficient heat exchange
• Unpleasant odors from coolant entering the HVAC system
• Fogging or moisture buildup on interior windows

Installation Notes and Tips

Installation of the Nissens heater core 71770 requires draining the vehicle’s cooling system and careful removal of the dashboard or HVAC housing, depending on the model. The included pipe facilitates connection to existing coolant lines. It is recommended to inspect and replace any worn hoses or seals during installation to ensure a leak-free system. Professional installation is advised for optimal results.

Quality Assurance and Warranty

Nissens manufactures this heater core to meet OEM standards for fit, form, and function. The aluminum construction and brazed fins contribute to durability and corrosion resistance. While specific warranty details may vary, Nissens products typically come with a limited warranty covering defects in materials and workmanship. Verify warranty terms with the supplier or manufacturer documentation.