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Thread: Inexpensive 923 A1 Fan Clutch Rebuild Kit Anyone?

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    Sergeant rivercreek's Avatar
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    Default Inexpensive 923 A1 Fan Clutch Rebuild Kit Anyone?

    I don't know if perhaps I've missed any posts specifically about this, but my searches so far haven't offered any options besides REALLY EXPENSIVE rebuild kits or even MORE EXPENSIVE complete fan clutch replacement units. (I did find mention on one post about available parts from FanClutch.com - I'm waiting on a return email from them now. Thanks whoever it was that posted that link) Wowee, everyone out there seems really really proud of these fan clutch units!! I have 2 clutch assemblies inoperable right now - one with a major air leak and one seized up tight. I haven't torn them apart yet, but judging by parts diagrams they seem to be relatively simple units - A couple bearings, clutch, springs, etc. My guess is hopefully just seized bearings in the frozen one although I haven't verified that yet. Has anyone had any experience/luck sourcing replacement bearings/parts without having to spend $500-$600+ on a "proper" rebuild kit by any chance? That just seems really excessive to me, unless I'm missing something - which is entirely possible. Bearings alone ought not to be too terribly expensive I wouldn't think, unless these ones are gold plated or some such. I guess I need to start tearing one of these things down to see if I can find any bearing numbers - Just thought I'd ask. Thanks in advance for any input.

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    I'm the dude, man! Steel Soldiers Vendor simp5782's Avatar
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    You can source all the individually

    Rear bearing 6017-2RS for $22 on ebay.
    Rear o ring FD145A $5
    Front bearing 10951608 on google for $23
    Large o.ring FD0077 $10
    Front plug with o ring. FC212143 from member Suprman

    Those are all the parts you need if its a bad rebuild. mostly its just leaking o rings.

    You can use an NTC400 fan clutch setup that are $400 new in ebay or from member suprman. You will have to resize the belts though but it will work just fine. It does put the fan a little further into the shroud but that isnt any fitment issue.
    2008 F-250 6.4L Powerstroke
    1979 AM General M920
    1984 AM General M915A1 (Big Cam III, HT3B Turbo, Brushless 24v Alternator with equalizer, A/C, Rear 20,000lb winch. 11R24 rear tires and 395s up front.)
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    Sergeant rivercreek's Avatar
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    Thanks so much Simp for the info and the super quick reply - you're awesome. Thats a huge help, exactly the info I was hoping for!

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    I'm the dude, man! Steel Soldiers Vendor simp5782's Avatar
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    Quote Originally Posted by rivercreek View Post
    Thanks so much Simp for the info and the super quick reply - you're awesome. Thats a huge help, exactly the info I was hoping for!
    I used an NHC250 fan clutch on an NTC400. I had to space the fan 3/4" out. Not sure on the reverse setup but ive got an engine i could see its fitment on. But the belts will align. The pulley on the NTC400.clutch is smaller i know
    2008 F-250 6.4L Powerstroke
    1979 AM General M920
    1984 AM General M915A1 (Big Cam III, HT3B Turbo, Brushless 24v Alternator with equalizer, A/C, Rear 20,000lb winch. 11R24 rear tires and 395s up front.)
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    Sergeant Major bachman502's Avatar
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    Are those the same part #s to rebuild an A2?

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    I'm the dude, man! Steel Soldiers Vendor simp5782's Avatar
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    Quote Originally Posted by bachman502 View Post
    Are those the same part #s to rebuild an A2?
    No.
    2008 F-250 6.4L Powerstroke
    1979 AM General M920
    1984 AM General M915A1 (Big Cam III, HT3B Turbo, Brushless 24v Alternator with equalizer, A/C, Rear 20,000lb winch. 11R24 rear tires and 395s up front.)
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    Sergeant rivercreek's Avatar
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    Hopefully I won't need to worry about spacing or retrofitting. Now that I know what to get, I'll tear into my bad clutch assemblies and see which parts I need. If I find anything interesting, I'll post my findings with some photos. I've never pulled one apart before, so it'll be a good learning experience anyway.

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    I'm the dude, man! Steel Soldiers Vendor simp5782's Avatar
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    Quote Originally Posted by rivercreek View Post
    Hopefully I won't need to worry about spacing or retrofitting. Now that I know what to get, I'll tear into my bad clutch assemblies and see which parts I need. If I find anything interesting, I'll post my findings with some photos. I've never pulled one apart before, so it'll be a good learning experience anyway.
    you will have to make a jig to hold everything together for reassembly. Swampdonkey has rebuilt a few of the NHC250 fan clutches that i went thru to keep me rolling.
    2008 F-250 6.4L Powerstroke
    1979 AM General M920
    1984 AM General M915A1 (Big Cam III, HT3B Turbo, Brushless 24v Alternator with equalizer, A/C, Rear 20,000lb winch. 11R24 rear tires and 395s up front.)
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    Quote Originally Posted by simp5782 View Post
    You can source all the individually

    Rear bearing 6017-2RS for $22 on ebay.
    Rear o ring FD145A $5
    Front bearing 10951608 on google for $23
    Large o.ring FD0077 $10
    Front plug with o ring. FC212143 from member Suprman

    Those are all the parts you need if its a bad rebuild. mostly its just leaking o rings.

    You can use an NTC400 fan clutch setup that are $400 new in ebay or from member suprman. You will have to resize the belts though but it will work just fine. It does put the fan a little further into the shroud but that isnt any fitment issue.
    Besides the pulley size, is the fan clutch for the 250 and 400 the same? I need to rebuild a fan clutch for a 400.
    1991 M923a2

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    Sergeant rivercreek's Avatar
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    I'm not sure I quite follow you regards a jig, but I imagine i'll find out soon enough lol. That bad, huh?

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