Phillips head threads?

[Robbos_Toyotas]

I have one of those little bosch ixo screw drivers, I think that would fit in there and pretty sure you can get an attachment big enough!

they are $70 tho, but oh so handy!

doub tit would have anough balls to remove that!

[Dale]

For the record I got a flat head screwdriver hammered into it (and it didn't slip at all) and it wasn't even close to cracking the screw with one person holding the pump, and another person getting as much weight as possible on the screwdriver.. someone had put plenty of torque on it!

[XR Pilot]

Haha that makes me think of someone sitting with that pump on a bench with a rattle gun torqing that sucker right up Glad to hear you got it out though.