Nissens 707172 HVAC Heater Core

Nissens 707172 Heater Core for Toyota Yaris and Scion xD

Nissens heater core 707172 is an aluminum HVAC heater core built for direct-fit replacement in select Toyota Yaris and Scion xD applications. It uses brazed cooling fins and includes pipe connections for a service-ready thermal repair.

Key Features

• Aluminum core material for efficient heat transfer
• Aluminum tank construction for consistent HVAC performance
• Brazed cooling fins for durable thermal exchange
• Pipe included for the listed application
• OE-style dimensions: 144 x 196.5 x 26 mm
• Fits 2007-2014 Toyota Yaris and 2008-2014 Scion xD, with notes by model year

Product Details

This Nissens HVAC heater core is engineered for the heating circuit inside the vehicle’s climate control system. The aluminum core and aluminum tank design support efficient coolant-to-air heat transfer, while the brazed fin construction helps maintain stable performance under daily thermal cycling. Part number 707172 is a practical replacement choice for Toyota Yaris and Scion xD vehicles that require the listed dimensions and fitment notes.

This part cross-references Spectra Premium 99316 for the same application.

What It Helps Fix

• Weak or uneven cabin heat
• Coolant odor inside the passenger compartment
• Fogging or film on the windshield caused by heater core leakage
• Loss of heater performance after internal corrosion or blockage
• HVAC temperature inconsistency in the dash heating system

Installation Notes and Tips

Verify the vehicle’s build date and dimensions before ordering, especially for 2009 and 2010-2014 applications with notes listed in the fitment data. Confirm hose routing, pipe alignment, and HVAC case access during replacement. Flush the cooling system and inspect related hoses, clamps, and coolant condition before installing the new heater core.

Quality Assurance

Nissens develops and manufactures thermal management components to high production standards, and this heater core reflects the brand’s Genuine Nissens Quality approach. Part number 707172 is built as a replacement HVAC heater core for the specified Toyota Yaris and Scion xD applications.