D7 17A hydraulic control unit.

Yes, that would be a #46 Hydraulic Control s/n 48C1-up. Also known as a 173 Hydraulic Control s/n 48C1-up.

The 46 is a front hyd. unit and the 173 is a fender mount unit , two completely different systems.
Bob

Wrong again and I have the Service Manual to prove it.

Show us what you got there on the Service Manual OM.

Kelly

The D7 17A used the #46 hyd. control. The manuals are sometimes available on ebay. I also have the manuals and I will help if you tell me what info you need.
The #46 hyd. control was also used on the D7E; Old Magnet is correct, it was then called the 173 hyd. control. There were three hyd. controls available on the D7E. The 173 was the front mounted unit, the 172 was the fender mounted unit and the 171 was used to operate a tilt cylinder on cable blade equipped D7E tractors.
[attachment=50787]172&173.jpg[/attachment] [attachment=50788]171 hyd control.jpg[/attachment]
Craig

Show us what you got there on the Service Manual OM.

Kelly

[quote="Kelly"]Show us what you got there on the Service Manual OM.

Kelly[/quote]

Check ebay for yourself, 173 Service Manual is about 20+ pages, also Parts and Operators Manual. Very good detail on servicing the #46 Hydraulic Control.

MO. I don’t have to check e-bay I have the service manual.I just thought someone else would be interested in what you said you had as well-------but that’s ok.

Bob is right as well 173 Sn 65g1 and up, and 173 Sn 67g1 and up was fender mounded tanks also.

Kelly

I specifically stated 173 s/n 48C1-up