To be honest I wouldn't risk it. Although its probably the same inside just with different fittings so it should be alright, but I would rather replace with the proper item to be on the safe side!

What normally causes the coil packs to fail is the spark plug gaps are too large, so the coil pack is being stressed firing the spark across the plug which causes premature failiure. Could be worth sticking in a new set of plugs or regapping them too!