Genuine New Holland carriage bolt sq fitted on the New Holland Rigid Grain Head and 74C, where it secures the assembly to spec torque. Cataloged for 76 New Holland models across 19 series.
Specifications
Technical specifications
9 attributes
Part type
Carriage Bolt Sq
Fits
76 New Holland models
Brand
New Holland
Part number (MPN)
86508778
SKU
CT-NHL-86508778
Category
FASTENERS
Part Number
86508778
Division
AG
Kit Available
Yes
Fit & diagrams
Compatibility
Will it fit your machine?
Type your model to confirm it fits — or browse the full compatibility list below.
Equipment models this part fits
Model
Series
72C
72C GRAIN HEAD
74C
GRAIN HEAD
1499
MOWER-CONDITIONER
499
HAYBINE
116
PIVOT TONGUE
1465
HAYBINE
1496
MOWER-CONDITIONER
25HB
DRAPER
355
GRINDER MIXER
357
GRINDER MIXER
472
HAYBINE
907
900 SERIES
910
900 SERIES
912
900 SERIES
94C
DRAPER HEADS
972
GRAIN HEAD
12HS
HAYBINE
1469
MOWER-CONDITIONER
14HS
HAYBINE
16HS
HAYBINE
18HB
DRAPER
18HS
HAYBINE
21HB
DRAPER
2200H
HAYBINE
2300H
HAYBINE
30HB
DRAPER
36HB
DRAPER
469
HAYBINE
477
HAYBINE
495
HAYBINE
71C
GRAIN HEAD
73C
GRAIN HEAD
74C-35F
GRAIN HEAD
84C
DRAPER HEADS
900
900 SERIES
909
900 SERIES
994
DRAPER HEADS
14NW290
FORD LEGACY
1900
1000 SERIES
5610S
10S MEXICO
5610S
10S SERIES
6610S
10S SERIES
6610S
10S MEXICO
7610S
10S MEXICO
7610S
10S SERIES
1100
WINDROWER
114
PIVOT TONGUE
1495
MOWER-CONDITIONER
2100
2000 SERIES
353
GRINDER MIXER
354
GRINDER MIXER
358
GRINDER MIXER
474
HAYBINE
478
HAYBINE
479
HAYBINE
488
HAYBINE
489
HAYBINE
490
HAYBINE
492
HAYBINE
535-SERIES
SICKLEBAR
Showing the first 10 of 76 compatible models — type your model above to jump straight to it.
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, 86508778 is the current number to order. The old numbers bring you to this page.
88807
Part guide
New Holland 86508778 carriage bolt sq — buyer's guide
~1 min read
New Holland 86508778 is the carriage bolt sq Clinton Tractor supplies for this application. It is listed as fitting 76 New Holland models.
What 86508778 fits
Fits: Ford 1900, Ford 5610S, Ford 5610S (LA), Ford 6610S, Ford 6610S (LA) + 74 more. Commonly ordered for the Rigid Grain Head, 74C, 1499. If your machine isn't listed, check the serial number before ordering.
Which numbers it replaces
86508778 replaces 88807. If your parts manual or the old box shows any of those numbers, this is the correct current replacement — no fitment change.
Carriage Bolt Sq Nk, 7/16'' - 14 x 1 3/4'', Gr 5 — fits 76 models across the New Holland lineup — 8650877886508778 · $2.24
In Stock
$2.24In Stock
Service & support
Questions
Frequently asked questions
Quick answers to what operators ask most before they order this part.
What equipment does New Holland part 86508778 fit?
It fits 76 New Holland models, including the Rigid Grain Head, 74C, 1499 and 73 more.
Does part 86508778 replace an older part number?
Yes — 86508778 replaces 88807.
Is New Holland part 86508778 a genuine OEM carriage bolt sq?
Yes — 86508778 is a genuine New Holland OEM carriage bolt sq, supplied new by Clinton Tractor.
Buyers & extras
Reviews
Ratings & reviews
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