HEATER CORE - MOPAR ('94-'02, 2500/3500 & '94-'01, 1500)

Item #: 04720008
*Backordered: 2/28/2021
  • About This Product
  • Reviews
  • Install And Tech Information


If there's coolant on the passenger side floor of your '94-'02 Dodge Ram 2500/3500 or if the heat is not as warm as it should be, it's probably time to replace the heater core.

Replacing it is a big job, but a do-it-yourselfer with the time, tools and a factory service manual should be able to do it. Set a day aside and save a lot of money compared to having a shop do it for you. You'll find a number of videos on YouTube demonstrating how to replace the heater core if you want to have a look before attempting this job.

If you're replacing the dash in your truck, it's a good idea to go ahead and replace the heater core while you're in there. You won't want to do this job twice.

NOTE: This part is OEM and different than what you will find at your local auto parts store. The tubes coming out of the OEM core do not have swivels in them and will take a bit more effort for installation.

Also fits '94-'01 Ram 1500 models.


Write a review
Best there is, plain and simple
Jun 18, 2020  |  By Carter Ovnicek
Heater core went out. Ordered this because I didn't want to deal with cheap junk. Works perfect, hot heat, no leaks, and installed in under 6 hours with a buddy. Thank you!

Don't buy the cheap aluminum
Nov 11, 2019  |  By Kevin Tummillo
I learned it the hard way buying a cheap swivel aluminum one. Leaked at the swivel after a year and a half. This one is the way to go. Quality made

Great product
Aug 30, 2018  |  By Hal
Don't even bother with the cheap aluminum heater cores. Pay the extra and get a good heater core. Better heat, quality, and piece of mind.

Quality Item
Dec 7, 2017  |  By Loren Strodtman
This seems to be a very quality item. The tubes are not brass like the original, but are coated inside and out. Solder joints look professional. The fins appear to be copper. So far has done very well in the cold Minnesota mornings.

Great Product and Sevice
Nov 27, 2017  |  By John Peterson
The heater core is a quality product and fitment was very good. Geno's service is excellent!

Heater Core
Sep 29, 2017  |  By David
Product works awesome! I would really recommend this over the crappy aluminium cores that don't put out as much heat. Definitely worth the extra money! Nothin but smooth service from Geno's Garage!

Heater Core
Aug 2, 2017  |  By Kenny McMillin
Fit perfect and good quality.

Good part
May 15, 2017  |  By Jesse radliff
It has the fixed hoses, instead of the flexible ones that usually leak for me.

Install and Tech Information

Download Heater Core Replacement.pdf