HeaterCore
Some heater cores use all metal construction. This Denso heater core also has its inlet and outlet pipes located on opposite tanks.
JD Laukkonen
JD Laukkonen turned wrenches in the north end of Seattle for a decade, so he's no stranger to the inner workings of modern automobiles. He has worked as a freelance writer since closing his shop in 2007, and he currently covers automotive technology for Lifewire.com.
