Piaggio, once again "redesigns" and chooses a new oil filter supplier for the Leader engines. New supplier is MAHLE. I had to design a tool and have it cut. First one was "cheaply" done on a waterjet to make sure it fits. Next one will be inox and laser cut...
Many vehicles use this type of oil filter. There are plenty of wrenches for them available on Amazon, eBay, MC sites, .... . Many of them with 6 sided bolt heads and 3/8" socket for removal. No reason to design and fabricate your own but good for you to undertake it.
My BMW 1100RT uses this type of filter and you have to use this style of tool because the filter is recessed into the bottom of the engine.
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