More on the topic of aftermarket fuel filters here
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I’ve personally had very few problems using aftermarket fuel filters designed specifically for the GL1000 such as the commonly available EMGO model. However, there have been some reported failures with such aftermarket filters. Fuel leaking from a fuel filter is more than a nuisance…it’s a very serious fire hazard.
Here’s a tip to prevent problems with these filters. The probable cause of leaking aftermarket filters is over-tightening of the 2-part bracket that secures the filter to the front of the fuel tank. If the aftermarket fuel filter has a diameter just slightly larger than the OEM spec, tightening of the retainer screw can put to much stress on the plastic filter housing which may cause it to fail eventually.