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, 277634 is the current number to order. The old numbers bring you to this page.
238-6117
365947A1
373757A1
719530003
719576006
719646016
719648016
83925156
87038S95
EBPN950D
Part guide
New Holland 277634 o-ring — buyer's guide
~1 min read
New Holland 277634 is the o-ring Clinton Tractor supplies for this application. It is listed as fitting 271 New Holland models.
What 277634 fits
Fits: New Holland FR920-A4B, New Holland BOOMER-3040, New Holland BOOMER-3045, New Holland BOOMER-3050, New Holland BOOMER-45D + 264 more. Commonly ordered for the Ford 5610, Ford 6610O, Ford 7610. If your machine isn't listed, check the serial number before ordering.
Which numbers it replaces
277634 supersedes 238-6117, 365947A1, 373757A1, 719530003, 719576006, 719646016, 719648016, 83925156, 87038S95, EBPN950D. 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 20.3 mm ID × 2.62 mm thick. The full attribute list is in the Specifications section above.