Wear Collar

[Silva Bullet]

What year did yamaha start using wear collars on F150 crankshafts. I was thinking around 2009.

[99yam40]

I would think looking at the parts break down of the different years would lead you to the answer.
maybe Rodbolt or Boscoe will know right off hand without having to look

[rodbolt17]

why bother? the either did or did not. replacement cranks may have them. all ya have to do is look.
my 2007 F150 does not have a sleeve nor does it leak.

[boscoe99]

The parts catalog at Yam's website shows the first F150 that uses the collar has a production date of April 2008.