You have to order the right pump for your needs.
The Melling pump in the picture is a 5/16" heavy duty with custom spring and drive shaft.
Don't order that one unless you need it.
You need a M57-B or a M57HV.
I think Melling makes a nicer pump case than Sealed Power and have a few more options.
But you can use a SP HV pump and I'm sure it would do yeoman duty for years.
As always check the depth of the pickup to pan.
