From the manual - the lower left and right coils are FL-11629.   The upper right is FL-11630.

The EOS switches may be out of adjustment - causing lack of power.

I generally put a full rebuild kit through mine and only replace coils if they are no good.  New coil sleeve are a must - but check the flipper bushes as well.

Marty is absolutely correct, you dont need to buy new coils, they either work or dont work, you need to rebuild the flippers