local pickup same day
usually ships same day
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
Also sold as a full pack of 2
local pickup same day
usually ships same day
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
Also sold as a full pack of 2
Overview
Service seal for New Holland equipment that keeps fluid in and contaminants out.
Specifications
Older numbers
If your manual or an old invoice lists one of these, 83985506 is the current number to order. The old numbers bring you to this page.
Part guide
New Holland 83985506 is the seal Clinton Tractor supplies for this application.
83985506 replaces K3660623371. If your parts manual or the old box shows any of those numbers, this is the correct current replacement — no fitment change.
Questions
Quick answers to what operators ask most before they order this part.
Yes — 83985506 replaces K3660623371.
Yes — 83985506 is a genuine New Holland OEM seal, supplied new by Clinton Tractor.
Match your model and serial number against the fitment list on this page, or send your serial to Clinton Tractor and we'll confirm 83985506 for you.
Reviews
Bought this seal? Share how it worked out to help the next operator choose with confidence.
No seeded stars — ratings appear only from real submissions.
Similar Parts
local pickup same day
usually ships same day
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
Also sold as a full pack of 2
local pickup same day
usually ships same day
Free shipping on parts orders $75+
To the 48 contiguous states, with a CROP account.
Also sold as a full pack of 2
