Oil pump model fitment question

Hey guys. I have a question about oil pumps. Mine appears to be leaking, and I have a brand new one in the trunk, but it’s a different model, although it claims to fit the same way, and came with a gasket clearly design for the one that’s currently on the engine. I’ll attach images so you can see the difference between the two. I just need to know if the new one will fit without causing any issues. Thanks in advance. The first image is the old model, and the second is the new model.

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The first one is OEM or an older replacement. The newer ones are like the bottom one, only use 5 bolts to mount. If it's just the outer cover gasket leaking fel pro and victor used to have the o ring to seal that, shouldn't have to even pull the pump out to fix that