Where can I find a new Mopar radiator?

  • Like
Reactions: 97JadeTJ
I purchased the Denso from Rock Auto and will be here by EOD Thursday.

Just FYI, I followed the recommendation of parts from this forum for a cooling system upgrade. Backstory, I just purchased this TJ on 12/22/23. I am going through freshening up a few items. Here's where I messed up in my opinion, the thermostat I ordered did not arrive with the pump, housing, hoses, gaskets, etc. So what did I do, went to O'Reily's and purchased one over the counter. I drove the Jeep afterward on Saturday, with no issue, then drove to work (40 miles each way) on Monday, and then back to work on Tuesday no issues. I have been paying extra attention to the temperature gauge. Well on my way back from lunch yesterday the engine temp shot up! Pulled over and realized after having it towed to my office (we have a conditioned shop) that the radiator blew apart.

A few thoughts:

1. The Jeep is 18 years old and bound to happen, I believe so at some point! I knew better, I should have just ordered the radiator when replacing all other cooling items.
2. The Jeep is 18 years old and working on and around the radiator on Saturday may put stress on the OEM.
3. The O'Reilly's thermostat failed? Planning on testing it this evening. *Anyone have a tip on how to test it? Boil water and wait for it to open.

Anyway, nothing crazy that anyone else hasn't already dealt with. Just my story and appreciate learning what others have learned.
 
  • Like
Reactions: JMT
I purchased the Denso from Rock Auto and will be here by EOD Thursday.

Just FYI, I followed the recommendation of parts from this forum for a cooling system upgrade. Backstory, I just purchased this TJ on 12/22/23. I am going through freshening up a few items. Here's where I messed up in my opinion, the thermostat I ordered did not arrive with the pump, housing, hoses, gaskets, etc. So what did I do, went to O'Reily's and purchased one over the counter. I drove the Jeep afterward on Saturday, with no issue, then drove to work (40 miles each way) on Monday, and then back to work on Tuesday no issues. I have been paying extra attention to the temperature gauge. Well on my way back from lunch yesterday the engine temp shot up! Pulled over and realized after having it towed to my office (we have a conditioned shop) that the radiator blew apart.

A few thoughts:

1. The Jeep is 18 years old and bound to happen, I believe so at some point! I knew better, I should have just ordered the radiator when replacing all other cooling items.
2. The Jeep is 18 years old and working on and around the radiator on Saturday may put stress on the OEM.
3. The O'Reilly's thermostat failed? Planning on testing it this evening. *Anyone have a tip on how to test it? Boil water and wait for it to open.

Anyway, nothing crazy that anyone else hasn't already dealt with. Just my story and appreciate learning what others have learned.

Yes, put in water and bring it to boil and see if it opens.

FWIW, I really like FlowKooler thermostats. Far higher quality than Stant and local parts stores.
 
I purchased the Denso from Rock Auto and will be here by EOD Thursday.

Just FYI, I followed the recommendation of parts from this forum for a cooling system upgrade. Backstory, I just purchased this TJ on 12/22/23. I am going through freshening up a few items. Here's where I messed up in my opinion, the thermostat I ordered did not arrive with the pump, housing, hoses, gaskets, etc. So what did I do, went to O'Reily's and purchased one over the counter. I drove the Jeep afterward on Saturday, with no issue, then drove to work (40 miles each way) on Monday, and then back to work on Tuesday no issues. I have been paying extra attention to the temperature gauge. Well on my way back from lunch yesterday the engine temp shot up! Pulled over and realized after having it towed to my office (we have a conditioned shop) that the radiator blew apart.

A few thoughts:

1. The Jeep is 18 years old and bound to happen, I believe so at some point! I knew better, I should have just ordered the radiator when replacing all other cooling items.
2. The Jeep is 18 years old and working on and around the radiator on Saturday may put stress on the OEM.
3. The O'Reilly's thermostat failed? Planning on testing it this evening. *Anyone have a tip on how to test it? Boil water and wait for it to open.

Anyway, nothing crazy that anyone else hasn't already dealt with. Just my story and appreciate learning what others have learned.

Link to the Robert Shaw FlowKooler Thermostat

https://flowkoolerwaterpumps.com/products/robertshaw-330-160-degree-thermostat?variant=9125073354804
 
  • Like
Reactions: JMT
Great, thanks for the link and input. I am finding it odd that none of the stat's I can find online have the vent hole and position marking like the OEM I removed on Saturday. I'll post a picture tonight, haven't thrown away my scrap pile of parts.

Yeah, a lot of them don’t have the small hole at the top. Many of us just drill a 1/8” hole and position it at the top. The Robert Shaw FlowKooler is proper in this respect.
 
From the Robert Shaw website, both options are in my year range. However, I am not sure what the difference is between the two options below.
MakeCIDLtrYear
JEEP
242​
4​
1989-2006
JEEP
258​
4.2​
1972-2006

Yours would be the top one. 4.0 liter.
 
  • Like
Reactions: KAPOW
I looked at the 1-row specs. No mention of the tube size. My 289 Mustang has a 2-row radiator with 1.25" diameter tubes.

I find that most of the China radiators do not list tube size in the spec.

Any idea what the tube size is on the CSF and Denso radiators?

I have run Slant thermostats for years in multiple vehicles with zero issues.
 
I ordered Slants from RockAuto last year and received Slants. I still have a couple of them. I buy in bulk to offset the shipping cost.