Clutch fan system parts help?

[dukecola]

Hi guys, I'm new to the forum. I need some help finding part numbers for the hydraulic clutch fan system. I have a motorhome which used the exact same engine and hyd system as the HMMWV. One of only 2 dozen of these were made (1/2 were fire trucks), so it's hard for me to find parts, GM dealers are clueless. My fan stopped working again (for the 3rd time in 18 yrs). The other two times it was the clutch itself and the Kysor valve. I replaced both those this time and system still not working. Would anyone have the GM part numbers for the other components, TDC and temp sensor? What about the relay? Anything else I missed? Mine has a relay in the system as well but it's 12v, not 24v like the HMMWV. Also part sources would be appreciated.

Thanks,
Duke
USN-29yrs

 

[porkysplace]

You can find the part numbers somewhere in one of these , then google the part number for a source .
TM 9-2320-280-24P-1 HMMWV Parts vol 1.pdf
TM 9-2320-280-24P-1 Parts/Tools Volume 1 for the M998 Series HMMWV

TM 9-2320-280-24P-2 HMMWV Parts vol 2.pdf
TM 9-2320-280-24P-2 Parts/Tools Volume 2 for the M998 Series HMMWV
[h=1]6.5 tm's[/h]

 

[Retiredwarhorses]

No idea for the civ Side...I frankly had never seen hyd fan setup like in The HMMWV before on a Civ vehicle.
have you thought about changing it over to a thermostatic fan? I see many folks do this on HMMWV's and it works great.
and mucho simpler...

 

[dukecola]

Yup, it's the same as the HMMWV. I learned that in arbitration, cause the dealers could not find parts nor did they know a clue about it. At the last arbitration meeting, GM finally found the Kysor part, otherwise they were going to buy the RV back. My RV is rear engion so no other fan will work, trust me, I've tried. They way the system works now, if fan on at 210 for about 30 seconds till it gets to 190 then shuts off, repeat this about every minute. Parts wear quick this way. I really need the GM temp switch and TDC part numbers.

 

[ClarkeF]

Duke cola,

the HMMWV isn't built with All GM parts - just the motor tranny were originally sourced from GM. The fan clutch has four different manufacturers listed when you look the NSN up. The last one is the AMG part number for the HMMWV.





Manufacturer Information:
1090-06404-01 51377 BORGWARNER THERMAL SYSTEMS INC. DIV EMISSIONS/THERMAL SYSTEMS
2930011687870 SCY13 E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
2930PL0648994 9009H INSPEKTORAT WSPARCIA SIL ZBROJNYCH
5579411 34623 AM GENERAL, LLC