[John]

Just picked up a Genuine Yamaha R3 oil filter for the R3 (and crush washer) at Hillview Motorsports in Latrobe, PA. They claim to have about 20 of them.

 

[John]

Yamaha superseded the 1WD filter already.

1WD-E3440-00-00 now changes upto 5GH-13440-50-00

Any Idea why they changed it? Hopefully to make it easier to get off and on! I had a **** of a time getting the original 1WD filter off.
Tried:
Rubber adjustable belt: slipped and failed.
Metal self adjusting band: slipped and failed.
Socket type: slipped and failed.
Self adjusting jaw: slipped and failed.
Nylon belt adjustable: slipped and failed.
I finally busted out my 18" Rigid pipe wrench and the filter didn't stand a chance! It turned right off but I had to remove the left side plastic for clearance.
Turned the new 1WD filter back on with the rubber strap type.
I hope the new 5GH filter is easier. Maybe that was the change?