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, 86521606 is the current number to order. The old numbers bring you to this page.
3943
425-286
47817209
47817223
47817228
47817230
86705235
87022820
87347736
87347738
87532169
87585786
PM-526A
Part guide
New Holland 86521606 flange nut hex — buyer's guide
~1 min read
New Holland 86521606 is the flange nut hex Clinton Tractor supplies for this application. It is listed as fitting 262 New Holland models.
What 86521606 fits
Fits: New Holland C234, New Holland BC5060, New Holland BC5070, New Holland BOOMER-3040, New Holland BOOMER-3045 + 252 more. Commonly ordered for the H8080, H8040, SPEEDROWER-200. If your machine isn't listed, check the serial number before ordering.
Which numbers it replaces
86521606 replaces 3943, 425-286, 47817209, 47817223, 47817228, 47817230, 86705235, 87022820, 87347736, 87347738, 87532169, 87585786, PM-526A. If your parts manual or the old box shows any of those numbers, this is the correct current replacement — no fitment change.