Jeep 2002-2006 Wrangler Heater Core
Jeep 2002-2006 Wrangler Heater Core
Jeep 2002-2006 Wrangler Heater Core

Jeep 2002-2006 Wrangler Heater Core

HC 02-06 Jeep Wrangler 20FPI

Regular price $349.00

Oh No!  Your aluminum heater core in your 2002-2006 Jeep Wrangler failed again because of electrolysis. We were asked to make the core of copper due to the repeated failures of the aluminum and the aggravation and high labor cost to replace it.

Most heater cores perform well at 11 fins per inch.  Jeep guys wanted more heat so we added a 15FPI and then a 20FPI.  We noticed some Jeepers bought the lower price heater core and then went on forums to complain.  They spoke, we listened.  We now only offer a 20FPI and we are now experimenting with jamming a 2-5/8" thick core in the box.  

There is a lot of forum chatter about baffles and plastic turbulators.  Turbulators are not used in highly efficient "flat" tubes, we don't use round tubes in Jeep heater cores and we do not make the tubes or fins of aluminum.  Tanks are baffled based on the flow design of the core and they are present in the Jeep heater cores we make.

The Jeep's engine was intended to run at temperatures of ~210 degrees.  Changing a thermostat, adding a high flow water pump, putting in a larger radiator will ultimately reduce the system operating temperature and this may affect the heater core's heat output.  Additionally, Jeep heater cores can become clogged with "sludge", mice love living in vents and snacking on wire coating and blend doors do fail. We make a more efficient core with the limited space provided and try to help people understand their heater core's design better Some listen to us and some hang out on forums.

  tube shape tube count Vol in quarts Major OD tube wall thickness tube wall area
OE round 7 .19 0.3 0.028 0.40
BW elliptical 11  .58 0.75 0.007 0.49
    157% 305% 250% 25% 122.5%
  fin material thermal conductivity fins per inch agg. area Cu. Area net area
OE AL 205W/m K 21 1,459 4.38 1,458
BW 2r Cu 385W/m K  20 1,464 4.32 1,461
BW 3r Cu 385W/m K  20 2,121 6.26 2,083


The heater cores are made to order so please allow adequate time when ordering.

We make to order. Please allow adequate time for us to build.

Build time estimates [February 2024]

Brass Model Ts 2 months 

Black Model Ts FT 1-3 weeks - RT is 6 weeks

Model As 2-4 weeks

Heater cores 6 weeks

Common street rods 3.75 months

Tricky customs & restorations 4-4.5 months

We appreciate your patience as we continue to recruit and train new fabricators.