Top positive review
It works in a HL-3170CDW
Reviewed in the United States on August 29, 2019
This works fine: the first page was very good but had a few flecks probably left over from having the printer open and working on it. The second page was perfect. There was a hot plastic smell when it first warmed up as expected, but it quickly went away.
I have done lots of laser printer repair and as far as printer repairs go, this is a quick repair of medium complexity. You need to be careful especially when handling the fuser heater, when installing this roller under the fingers, and when detaching / re-attaching the gear. If you don't have any laser printer repair experience, this is probably not the first one you want to do.