91A-8600 Radiator fan

fordyford

fordyford

Senior Member
I have saved 2 of these NOS crankshaft mounted fans and finally got both at the same location. One has a longer hub than the other. Any one know why? Car/truck or 60HP ?

Thanks
Keith
 
Please post the hub lengths of the two fans so that we can note the difference for future reference. Thanks
 
My original Ford parts catalogs give both 1939 Deluxe Fords and 1939 Mercury the same part number for the fan.
91A-8600.
The description for both reads " 16 3/4" - 6 blade "
It also states they both share the same crankshaft pulley and hub assembly.
PN 91A-6312.
 
fordyford said:
I have saved 2 of these NOS crankshaft mounted fans and finally got both at the same location. One has a longer hub than the other. Any one know why? Car/truck or 60HP ?

Thanks
Keith
Click to expand...


The longer hub is for the 1941 Mercury and is a 19A-8600 part. The 91A-8600 fan is used on the 39 and 40 Mercury and the 39 Deluxe, all 85 HP 1940 model cars and pickup and all V8 model 1941 Ford cars and pickup.

40larry
 
I still want to know the hub lengths if possible. Like Mac I'm always wanting more knowledge for myself and here.
 
Thanks for all of the input. My short 91a-8600 measures 3 5/8 to 3 3/4"

The long 19A-8600 measures 4 1/2 to 4 5/8".

Both are 6 blade with alternating long and short blades

Keith
 
I have a known 19A fan, will measure it tomorrow. How are you measuring it, from the mounting surface to the backside of the fan blades?
 
Mac VP I get 3" exactly on the 91A --- 3 5/8" on the 19A . I hooked a tape on the flare at the base where the blades mount and measured to the mounting flange (not the part that indexes into the crank pulley) These are new, out of the FoMoCo box.
 
deuce_roadster said:
Mac VP I get 3" exactly on the 91A --- 3 5/8" on the 19A . I hooked a tape on the flare at the base where the blades mount and measured to the mounting flange (not the part that indexes into the crank pulley) These are new, out of the FoMoCo box.
Click to expand...

Just remember one thing Mike, and Mac. Even though it is NOS in a FoMoCo box, "FoMoCo" is the 'key' here. On 11/20/1948, a U.S. federal trademark registration was filed for FoMoCo. This trademark is owned by Ford Motor Company,
One American Road
Dearborn, MI 48126. The USPTO has given the FoMoCo trademark serial number of 71569147.

So, even though it is NEW, and it is a legitimate Ford piece, it should be considered a "replacement part" manufactured no earlier than '49, and MAY not necessarily replicate the original fan PRECISELY! DD
 
The one I got for my 39 deluxe has a second layer of metal on the blades where the rivets are. Most others I've seen don't have this. It has a 3" hub.
 
V8COOPMAN said:
Just remember one thing Mike, and Mac. Even though it is NOS in a FoMoCo box, "FoMoCo" is the 'key' here. On 11/20/1948, a U.S. federal trademark registration was filed for FoMoCo. This trademark is owned by Ford Motor Company,
One American Road
Dearborn, MI 48126. The USPTO has given the FoMoCo trademark serial number of 71569147.

So, even though it is NEW, and it is a legitimate Ford piece, it should be considered a "replacement part" manufactured no earlier than '49, and MAY not necessarily replicate the original fan PRECISELY! DD
Click to expand...

Coopman, You have brought forth a very important point that many apparently don't understand. Lord knows I've frequently found it necessary to explain to "unhappy" owners on the concourse when they've received deductions for installing such (service) parts.
And, as a side note of sorts, just because Drake and others list a part as correct and / or fits years "X through X" does not necessarily a correct part make.
The parts books are good for one thing: indicating parts that were offered for SERVICE that will fit and function. As for being correct? Yeah, maybe. And then again, maybe not.
 
deuce_roadster said:
Mac VP I get 3" exactly on the 91A --- 3 5/8" on the 19A . I hooked a tape on the flare at the base where the blades mount and measured to the mounting flange (not the part that indexes into the crank pulley) These are new, out of the FoMoCo box.
Click to expand...




I measured the hub on my '41 Merc Town Sedan and it is also 3 5/8" as above. Puts the front edges of the six blade fan approx 7/8" from the radiator core.


Terry
 
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