1975 F250 Highboy with a 360 2 barrel and c6 auto; all bone stock.
Would like to change out the voltage regulator and cannot cross the Engineering numbers located on the original voltage regulator to a current Motorcraft one.
Existing part reads D4AF-10316-AA; I would like a Motorcraft replacement if possible
Appreciate any help provided.
Thanks
Tbruz

 

Voltage regulator, non-transistorized (mechanical)
73-77 All Except M450/500, from s/n S00,001
D4TZ-10316-A Motorcraft P/N GR-341-B
Marked D4AF-10216-AA, D4TF-10316-AA, D7PF-10316-AA

Green Sales, Cincinnati, OH has 1 (800) 543-4959
NOS Parts Source, Olathe, KS has 1 (913) 220-5746

Also, NPD has an excellent, made in USA reproduction, this is NPD's repro (below the E-Bay link):

EDIT: If you want a laugh, here's one on E-Bay (!$!)
http://www.ebay.com/itm/NOS-66-74-FORD-MERCURY-LINCOLN-MOTORCRAFT-VOLTAGE-REGULATOR-GR341-B-D4TZ10316A-/192063419696?_trksid=p2141725.m3641.l6368

 

I recently replaced the one on my 73 F100 with a 360FE 2 barrel using this one from Advance Auto. It's not motorcraft and not mechanical but it works great. CARQUEST by BWD Voltage Regulator R400P: Advance Auto Parts

 

The BWD R400 is what I have been running for the past 6 months.
Was fine initially but giving me trouble now; having the alternator(rebuilt 6 months ago) tested in the am as well.
Thanks for your input
Tbruz

 

In 1981, Ford replaced the points type alternator regulator used 1963*/80 w/an electronic regulator. Ford updated the part number in 1990.

The electronic regulator has MOTORCRAFT embossed on the diagonal on its almost flat cover. The wiring harness is the same for the electronic and points type regulator.

FOPZ-10316-A .. Electronic Alternator Regulator (Motorcraft GR-540-B) / Available from Ford & auto parts stores.

FOPZ-10316-A replaced E1PZ-10316-A electronic alternator regulator and the D4TZ-10316-A points type alternator regulator that in 1974, replaced the original C3SZ-10316-A points type alternator regulator.

*1963/64 Thunderbird came w/an alternator as standard equipment, all other FoMoCo vehicles came with an alternator in 1965.

btw: You can remove the cover of the electronic regulator and install the original points type regulator cover.

1963/72 cover is black w/a white decal marked Auto-Lite. 1973/80 cover is blue w/a yellow decal marked Motorcraft (see Mike's pic in post 2). Both of these decals are reproduced.

 

Thanks again for the updated P/N's

 

Thanks for all the help.
Decided to test the recently rebuilt alternator(by a auto electrical shop) and it was bad. They re-rebuilt on their dime and tested with a new electronic voltage regulator.
Per the electric shops advice I installed an additional ground to the voltage regulator body/core support directly back to the negative battery post(about 10 inches of wire)
Re installed in my truck and all is good, voltmeter is rock steady and responds correctly to any electrical draw.
I will be removing the cover off of the original voltage regulator and swapping it onto the new electronic one to keep it looking "original".
Thanks again for helping me keep this truck running.
Tbruz