NWL 87 975 604 STD (theee unopened boxes)
Also has the number 4 028977 120178

71-326604 = 914 2 liter (one box)

HL 87 977 600 STD (one box)

HL 87 977 700 STD (one box)

Is there some place where I can determine the specification for these bearings?

Thanks.

Google is your friend

French Site Bearings & such

The 877 977 600 appears to be 1.7. Didn't bother looking up the others.

Thanks for the help. That site has great documentation.