Every diagram this part appears in — jump straight to its callout, or browse the whole assembly. Each diagram opens with every part numbered, and each callout links back to its own part page.
If your manual or an old invoice lists one of these, 83993394 is the current number to order. The old numbers bring you to this page.
F0NNM951AA
Part guide
New Holland 83993394 o-ring — buyer's guide
~1 min read
New Holland 83993394 is the o-ring Clinton Tractor supplies for this application. It is listed as fitting 13 New Holland models.
What 83993394 fits
Fits: Ford 5610S, Ford 5610S (LA), Ford 6610S, Ford 6610S (LA), Ford 6810S + 11 more. Commonly ordered for the Ford 5610S (LA), Ford 5610S, Ford 6610S. If your machine isn't listed, check the serial number before ordering.
Which numbers it replaces
83993394 replaces F0NNM951AA. If your parts manual or the old box shows any of those numbers, this is the correct current replacement — no fitment change.
Specifications at a glance
This o-ring measures 49.5 mm ID. The full attribute list is in the Specifications section above.