water pump part no.

[Duncan]

Just checking the family album for water pump no's for my '85 CQ and it lists part no. 035-121-004-A, 035-121-004-AX, and 035-121-004-AV.
What do the different suffixes (A, AX, AV) mean?
Important or ignore...?

cheers
Duncan
'85 CQ
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