Same thing happened to me last Saturday when changing my filter. Must of put it on too tight last time.
I looked at my new 20004 and noticed a pretty beefy ring of metal around the entire filter right near where it mates to the o-ring.
I took my longest flat edge screwdriver and hammer and carefully banged on that edge to loosen it. Similiar to how people bang off the axle nut when they don't have the 54mm socket.
I looked at my new 20004 and noticed a pretty beefy ring of metal around the entire filter right near where it mates to the o-ring.
I took my longest flat edge screwdriver and hammer and carefully banged on that edge to loosen it. Similiar to how people bang off the axle nut when they don't have the 54mm socket.