Gjeep Posted August 10, 2018 Share Posted August 10, 2018 I decided when rebuilding my ’92 MJ I wanted to have a similar set up to Hornbrod using OEM parts. I got to thinking…and remembered the RHD XJ model fan set up in opposite the LHD, meaning the efan is on the passenger side and the clutch fan on the driver side. I took a chance and ordered a Mopar RHD efan. Sure enough the fan/ motor assembly is the identical part number as the LHD model, only the shroud is different. The RHD variant allowed me to mount the efan with only one modification to the upper radiator support -- drilling a mounting hole. Below are photos of the RHD Mopar efan: And as it would be installed. On the bottom side of the radiator I carved out a simple plate that mounts to the original efan/ fan shroud radiator tabs that the 2 fans can drop into. Instead of using a SPAL controller, I went with a hard-wired switch to the Renix temperature switch opening in the radiator. HO radiators already have the Renix provision in place, it’s just a matter of removing the plug. After much internet research, I went with a Facet temperature switch# 7.5007. This is from a Peugeot 205 1.9L Cooling Fan Switch (on @ 189*/off @ 170*). This was a direct fit for the Renix radiator switch hole. I used Bosch relay# 12631710726 which is a 5-pin relay with diode (for primary efan to temp switch wiring). This relay has a diode within. The diode absorbs the high voltage spike created by the collapsed magnetic field on de-energization of the coil. Link to comment Share on other sites More sharing options...
HOrnbrod Posted August 11, 2018 Share Posted August 11, 2018 Nice job G - I like it. I never thought of using a LHD aux fan when I did mine years ago, I like your setup a lot better. Less work, looks cleaner, and fits better. I'm curious as to why you didn't use the Spal two-speed controller for the additional fan. Mine has been working great and the 2nd fan only comes on at HI speed when stuck in traffic on the hottest summer days. Guessing you went with the external relay setup instead of the Spal controller because of the better current carrying capability? Link to comment Share on other sites More sharing options...
Gjeep Posted August 12, 2018 Author Share Posted August 12, 2018 Yep, basically simplicity. I do like what the spal can do, but I wanted to both keep it simple and have it look/ be more OEM-ish. And I think this set up is along the lines of what Jeep would have done with the dual efan set up back in ‘92. Link to comment Share on other sites More sharing options...
kryptronic Posted August 13, 2018 Share Posted August 13, 2018 On 8/10/2018 at 12:48 PM, Gjeep said: I took a chance and ordered a Mopar RHD efan. Thank you very much for posting this. I was considering a similar setup for my 91 and 92. I was recently talking to the mechanic who does my inspections, who happened to be working on a RHD XJ at the time, and he said the RHD fans and shrouds were NLA. So I kind of ditched the idea. I should have looked further into it. Do you have a Mopar part number for the RHD fan and shroud? Awesome tip on the 97-01 upper rad support. Link to comment Share on other sites More sharing options...
Gjeep Posted August 13, 2018 Author Share Posted August 13, 2018 52028339AB RockAuto has them for $340. Ebay has them as well. Plenty available new. Last week there was a RHD used fan on ebay UK. Unfortunately it's no longer available/ sold. Link to comment Share on other sites More sharing options...
HOrnbrod Posted August 13, 2018 Share Posted August 13, 2018 Walmart? Really? https://www.walmart.com/ip/Radiator-Cooling-Unit-MOPAR-52028339AB-fits-00-01-Jeep-Cherokee/995800941 Link to comment Share on other sites More sharing options...
Gjeep Posted August 14, 2018 Author Share Posted August 14, 2018 Relays and wiring in place. On the left side is the factory fog light relay. I re-wired it into a new relay box, so I could mount/ attach the same style relay for the full-time efan complete with 25 amp fuse. Link to comment Share on other sites More sharing options...
8valvehero Posted August 27, 2018 Share Posted August 27, 2018 Dang. I owned a wrecked RHD XJ and this is one piece I didn’t grab. Added to my junkyard wishlist! Nice work! Link to comment Share on other sites More sharing options...
Gjeep Posted September 19, 2018 Author Share Posted September 19, 2018 Here the RHD and LHD OEM fans are installed. Hoping to fire the truck up for the first time next week and I'll know if the temp switch in the radiator works well for the primary fan set up. Link to comment Share on other sites More sharing options...
bad_idea Posted September 20, 2018 Share Posted September 20, 2018 That thing is TOO clean. Wow. Looks great. I like the setup, especially the fan switch. Thanks for the part number. Link to comment Share on other sites More sharing options...
yxmj Posted September 20, 2018 Share Posted September 20, 2018 I have basically the same setup...... The only thing I have extra is toggles in cab so I can manually over-ride for either off or on (one for each fan). And to make you think about it......I can run 90% of the time with no fan running.... Link to comment Share on other sites More sharing options...
Gjeep Posted November 15, 2018 Author Share Posted November 15, 2018 Just to update, I scrapped the relay/ coolant temp switch set up for a SPAL controller (same as Hornbrod's). Only difference will be I am going to run both the primary and secondary fan off the SPAL controller. Will program the fan's to come on in both low and high temperature settings. Link to comment Share on other sites More sharing options...
boxyjeep Posted December 25, 2018 Share Posted December 25, 2018 Any reason why a second LHD fan couldn’t be used instead? $340 is insane for one of these... Link to comment Share on other sites More sharing options...
Gjeep Posted January 7, 2019 Author Share Posted January 7, 2019 It doesn't fit the bends of the upper radiator support. The RHD fan does. Link to comment Share on other sites More sharing options...
silvertwinkiehobo Posted August 20, 2020 Share Posted August 20, 2020 I'm glad I found this, as I have a SPAL controller, and with the A/C install on Maveric's rig, I want to convert to dual electric fans. Now I'll have to go on a quest for an RHD fan, even if I only find an intact shroud; I can always snag a motor and fan wheel from the J/Y if necessary. But I have one question: the OP's rig was a '92; were those already converted to the ECT in the t-stat housing, and the fan relay controlled directly by the ECU? Is that why he tried a fan controller switch for a Peugeot? Link to comment Share on other sites More sharing options...
silvertwinkiehobo Posted August 20, 2020 Share Posted August 20, 2020 Got another question: I'm not familiar with Jeep particulars, and even with the part number above, I don't know which model year XJs were offered in RHD. What years were they offered, and offered with the 4.0L? Link to comment Share on other sites More sharing options...
silvertwinkiehobo Posted August 20, 2020 Share Posted August 20, 2020 $357 for this? You can kiss my credenza, as Dad used to say: https://www.summitracing.com/parts/mop-52028339ab?seid=srese1&gclid=Cj0KCQjwvvj5BRDkARIsAGD9vlLB5xNMX3pMImV87VrNXRDW8cY-NboYZwC_vb182pKG8n8uoTfYSQwaApdqEALw_wcB Link to comment Share on other sites More sharing options...
Pete M Posted August 24, 2020 Share Posted August 24, 2020 On 8/20/2020 at 4:25 PM, silvertwinkiehobo said: Got another question: I'm not familiar with Jeep particulars, and even with the part number above, I don't know which model year XJs were offered in RHD. What years were they offered, and offered with the 4.0L? not everyone checks the DIY forum regularly. you should post up in the Tech forum so more eyes will see it. (but be sure to bring the answer back here ince you figure it out. ) Link to comment Share on other sites More sharing options...
Salvagedcircuit Posted August 8, 2023 Share Posted August 8, 2023 I'm really digging this setup. I've been throwing around the idea of moving over to a dual fan setup, but I'm not sure how large of an alternator I would need for (2) 10 blade stock fans. I currently have the 105a Delco CS130 family alternator for renix. I'm eyeing a 145a Delco AD244 alternator as a replacement in hopes this would be adequate to run the dual fans. The AD244 is nice because it has built in regulation in the back of the motor and is a similar size to the CS130. The 160a DR44 might also work with a tiny PWM controller. Nickintime did a video on the AD244 conversion, albeit with a location swapped AC compressor and alternator. I'll be leaving the alternator in the stock location. I may need a new belt, but I don't mind. Mine is likely old enough to drink by now I plan on keeping the comanche stock with AC. Maybe automatic windows and locks in the future. No winch, air compressor, plow etc. Going to be used as a daily driver. @GjeepWhat alternator did you end up using for this dual fan setup? Edit: I combed through your excellent son of stink thread and it looks like you upgraded your alternator several times, starting with a rewound jeep/dodge 136a Alternator to a custom 200a+ Nations alternator. Thanks for the excellent guide! Link to comment Share on other sites More sharing options...
Gjeep Posted August 10, 2023 Author Share Posted August 10, 2023 Between all the add-ons the Nations 13341-270XP was the one best suited for my build. It’s massive and not only required carving out the factory alternator bracket, it needed extended bracketry, and a slight notch the frame. If I remember correctly it was around $800 Link to comment Share on other sites More sharing options...
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