Billetflow pulleys bearings replacements

[VenomousDSG]

Started to develop a squeel in one of the pulleys over the weekend. Been about 12 years since i put the Billetflow pulleys on, so figured id just change all 4 as a precaution. What is the recommended replacement bearings for these thing?

 

[FleeMan]

6203-2RSJ is the part number. Napa sells them and you can find them on Amazon.

 

[2003RedfireVert]

6203-2RSJ is the part number. Napa sells them and you can find them on Amazon.

Is this part number specific to Billetflows? Wonder if they could be used in most of the pulleys available (UPR for instance).

 

[FleeMan]

From looking at metco, billetflow and stock pullies. They all look to take the exact style bearing.

 

[2003RedfireVert]

I’ll bookmark this thread when I’ll need it inevitably.

 

[olympic]

Pay attention to the RPM rating of the bearings you buy. The idler pulleys can hit 12000 RPM even with a stock lower pulley and redline and some of the cheaper bearings aren't rated for that.