1966 F850? help please
It has a 6V 92 Detroit Diesel mated to a Eaton fuller 13 speed transmission.
The truck came without a clutch Master cylinder and I am having a very difficult time trying to locate one. Any help with information on this truck will be greatly appreciated. ill be attacking photos shortly.
Sequence as listed on the Warranty Plate:
WB: 212 / COLOR: Omitted / MODEL: F857 / BODY: 481 / TRANS: F / AXLE: Omitted / MAX GVW LBS: 27500 / CERT NET HP: Omitted / RPM: Omitted / DSO: Omitted.
It has a 6V 92 Detroit Diesel mated to a Eaton fuller 13 speed transmission.

Engine & transmission have been swapped.
The truck came without a Clutch Master Cylinder* and I am having a very difficult time trying to locate one.
L = 534 4V (gas) or Caterpillar model 1673-B 525 cid 6 cylinder diesel.
U = Louisville KY Assembly Plant.
868852 = 1966, assembled May 1966.
212" Wheelbase.
F857 = F850 .. 27,500 lbs. GVWR
481: 4 = Medium Beige Crush Vinyl & Medium Beige Wicker Pattern Vinyl / 81 = 81A Standard Cab.
F = Warner T-98 4 Speed or Warner T-18 4 Speed or Fuller model 5H74 5 Speed Direct.
27,500 lbs. Gross Vehicle Weight Rating.
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C1TT-7A542-A .. Clutch Master Cylinder-less pushrod / Obsolete
1961/62 F750/1100 / 1963/69: F800/1100 & N850/1100 & NT850/950.
No Ford dealer or obsolete parts vendor has any.

If you also need the master cylinder pushrod (C1TT-7A541-F), there are at least 17 available NOS
Parts catalog pic: 7A512 is the hydraulic line between the clutch master cylinder (shown as black triangle) and the clutch slave cylinder (7A508).
*Did you check with the person you bought this truck from to see if the clutch master cylinder might be laying around somewhere?
People take these things off in hopes of getting a new one or a repair kit, then cannot find either.
If you can find it, there's a repair kit (C1TZ-7578-A). So far, I found 49 of them NOS
More Information for DORMAN CM36126
Love to see a picture of this truck, like to see how they got a 6V92 in there!
DORMAN - FIRST STOP - Clutch Master Cylinder - Part Number: CM36126 - Myautopartswholesale.com | www
Once I get the clutch master cylinder I'll see if it actually moves.
Again I thank you all on this forum. The wealth of knowledge here is very impressive!








