Aux fan Update: I also installed the max-Fab-4x4's aux fan kit which uses the 100 series electric fan to kick on with AC. Kit worked great. Harrison was great/fast with the emails/questions etc. I customized it for manual on/off as well, see below:
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Landcruiser AUX AC Fan Full kit FJ80/FZJ80
Maxflate Air Systems is proud to present our new Landcruiser Auxiliary AC fan kit! This kit is as close to plug & play /factory as I could make it. There is no cutting or splicing of wires and works in conjunction with your factory AC system to bring down temperatures inside the cab. NOTE: This...www.maxfab4x4.com
Customized: For manual turn on/off (vs with AC only) I Installed an OEM fog light switch PN: 84160-90K01 and changed button decal to an Aux Fan switch. Kit works and turns on when AC is turned on. I also wanted it to turn on manually when not using AC to help with cooling when pulling up Mountain pass' or in general. Also nice to have on briefly after vehicle stops/turned to ACC.
Kit Harrison engineered is designed to turn aux fan on/off with AC, has nice relays and Oem plug integration with all correct connectors. Great instructions etc. are included. Its well thought through. Becuase i also wanted manual control of fan, Harrison walked me through tapping into the relay wire ground (on/off) to enable the interior mounted OEM switch be able to over-ride the AC pressure switch.
Feeling more prepared for a warm KC summer and Solid Axle Summit in august!
Video of fan and switch working:
Decal from Mo Faraz. Products - https://mofaraz.com/collections/all i had to FB message him, easier to locate as he has a lot of them!)
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Pulled part from ebay listing: P/N 84160-90K01
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Minor Issues: Only a few minor alignment issues on the bracket for fan, may have been a me only issue, but worked with pieces given after moving top hole 5mm , may have been alignment from PO installing new AC condenser/moving a few items and not bolting items down .
Recommended: Adding 1/4-3/8" black split loom to protect wires/make look factory. based on how you route it better to have some and use to heat/shield etc. this wasn't in the kit but cheap on amazon etc.
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How is this kit working since installed? Make a difference in ac temps at idle?