Rated 4.2 out of 5 stars.
If your truck's heater is blowing cold, this replacement heater core from Radiator Plaza might be the fix.
It fits a bunch of medium-duty trucks: Chevy/GMC W3500/W4500 Tiltmaster/Forward, and Isuzu NPR, NPR-HD, and NQR models.
It's made of aluminum and has been 100% leak tested and durability tested—so it's ready to install.
The dimensions are about 5 7/8 inches long, 5 1/2 inches high, and 1 inch wide.
It's a bolt-on replacement with no drilling or modifications needed.
Includes a manufacturer warranty.
