Cat 12E hyd pump

[cqguy1973]

I was wondering if any one on here can tell me the difference between 2 vane pumps for a Cat 12E grader. One is part number 4D7065 and the other is 4D6965. It has a Vickers Vane pump on at the moment that has worn out.

 

[Nige]

4D-7065 is shown as applicable for #12 grader Serial Number prefix 99E
4D-6965 isn't listed as fitting a grader. It's only shown as installed on 657 & 666 motor scrapers.

There are no common parts whatsoever between the two pumps, not even nuts, bolts, washers, etc.

 

[cqguy1973]

Sorry mate. Wrote the wrong number down. Should be 4D5965. My stuff up.

 

[Nige]

One ring (highlighted) is the only difference between the two pumps. I'm not sure what that implies as regards differences. Rotation maybe.?
Can't find any specifications for them either, more's the pity.

First the 4D-5965

 

[Nige]

Now the 4D-7065.

 

[cqguy1973]

Thanks mate.

 

[lantraxco]

My guess would be a slight difference in output flow, probably minor.