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Clinton Tractor & Implement Co.
Lock Nut M20 x 1.5, Cl 05 — fits 90 models across the New Holland lineup — 12577021
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Lock Nut M20 x 1.5, Cl 05 — fits 90 models across the New Holland lineup — 12577021

Part #12577021 No reviews yet — be the first Find it in 50 parts diagrams

Fits: New Holland T4020, New Holland T4030, New Holland T4040, New Holland T4050, New Holland T4.100LP + 85 more

About this item

  • Genuine New Holland OEM part — direct factory replacement
  • Fits: New Holland T4020, New Holland T4030, New Holland T4040, New Holland T4050, New Holland T4.100LP + 85 more
  • Locks the joint at the correct preload
Replaces
9968026
why →
$31.80/ each · USD
In Stock

usually ships same day

Qty

Ships from Clinton Tractor, Clinton NY

OEM parts

30-day returns · see policy

CT
Sold & shipped by Clinton Tractor & Implement Co.
Authorized New Holland dealer · since 1953
$31.80/ each · USD
In Stock

usually ships same day

Qty

Ships from Clinton Tractor, Clinton NY

OEM parts

30-day returns · see policy

CT
Sold & shipped by Clinton Tractor & Implement Co.
Authorized New Holland dealer · since 1953

Overview

Product description

Genuine New Holland lock nut fitted on the New Holland TK4.100 and TK4.100M, where it locks the joint at the correct preload. Cataloged for 90 New Holland models across 24 series.

Specifications

Technical specifications

9 attributes
Part type
Lock Nut
Fits
90 New Holland models
Brand
New Holland
Part number (MPN)
12577021
SKU
CT-NHL-12577021
Category
FASTENERS
Part Number
12577021
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
ModelSeries
TK4100TK4.XXX
TK4100MTK4.XXX
TM120TM
TM130TM
TM140TM
T4100LPT4.XXLP
T4110LPT4.XXLP
T4120LPT4.XXLP
T480LPT4.XXLP
T490LPT4.XXLP
T6030T6000
T6050T6000
T6070T6000
T6125T6.120 - 180 DUAL/ELECTRO COMMAND TRACTORS
T6140T6.140 - 180 AUTOCOMMAND TRACTORS
T6145T6.120 - 180 DUAL/ELECTRO COMMAND TRACTORS
T6150T6.140 - 180 AUTOCOMMAND TRACTORS
T6155T6.XXX DYNAMIC COMMAND TRACTORS
T6160T6.120 - 180 DUAL/ELECTRO COMMAND TRACTORS
T6165T6.120 - 180 DUAL/ELECTRO COMMAND TRACTORS
T6175T6.140 - 180 AUTOCOMMAND TRACTORS
T6180T6.120 - 180 DUAL/ELECTRO COMMAND TRACTORS
T7170T7.170-210 RANGE- /POWERCOMMAND
T7185T7.170-210 AUTOCOMMAND
T7230T7.XXX TIER 4B
T7245T7.XXX TIER 4B
T7260T7.XXX TIER 4B
T7270T7.XXX AUTOCOMMAND TIER 4B
TK4110TK4.XXX
TK4110MTK4.XXX
TK490TK4.XXX
TK490MTK4.XXX
TM115TM
TM125TM
TM135TM
TM150TM
TM155TM
TM165TM
115-90FIAT
130-90FIAT 90
140-90FIAT
160-90FIAT
180-90FIAT
816060 SERIES
826060 SERIES
836060 SERIES
856060 SERIES
T4020T4000
T4030T4000
T4040T4000
T4050T4000
T6010T6000
T6020T6000
T6040T6000
T6060T6000
T6080T6000
T6090T6000
T6120T6.120 - 180 DUAL/ELECTRO COMMAND TRACTORS
T7030T7000 FPS
T7040T7000

Showing the first 10 of 90 compatible models — type your model above to jump straight to it.

Not sure it fits? Browse the full parts catalogue to check every listed part.

Parts diagrams

Find it in the exploded diagram

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.

New HollandSystemAssemblyThis part
Group diagrams
Parts diagrams this part appears in
AssemblyMachineCalloutPartsView
(VAR.521) CLASS 4 4WD FRONT AXLE SUPERSTEER WITH ''TERRALOCK'' exploded parts diagram — New Holland TM120
(VAR.521) CLASS 4 4WD FRONT AXLE SUPERSTEER WITH ''TERRALOCK''
 New Holland TM120 · Front Axle & Steering#1540View
Implement Carrier With 2 Pin Type Telescopic Stabilizers (Var.330904-330922-330953) exploded parts diagram — New Holland T4020
Implement Carrier With 2 Pin Type Telescopic Stabilizers (Var.330904-330922-330953)
 New Holland T4020 · Implement Lift#38View
(Var.416) Supersteer Front Axle - Link exploded parts diagram — New Holland TM120
(Var.416) Supersteer Front Axle - Link
 New Holland TM120 · Front Axle & Steering#1528View
Var - 758050 exploded parts diagram — New Holland T7.230
Var - 758050
 New Holland T7.230 · Steering#919View
Var - 758429 exploded parts diagram — New Holland T6.125
Var - 758429
 New Holland T6.125 · Steering#937View

Older numbers

Older part numbers for this part

If your manual or an old invoice lists one of these, 12577021 is the current number to order. The old numbers bring you to this page.

  • 9968026

Part guide

New Holland 12577021 lock nut — buyer's guide

~1 min read

New Holland 12577021 is the lock nut Clinton Tractor supplies for this application. It is listed as fitting 90 New Holland models.

What 12577021 fits

Fits: New Holland T4020, New Holland T4030, New Holland T4040, New Holland T4050, New Holland T4.100LP + 85 more. Commonly ordered for the TK4.100, TK4.100M, TM120. If your machine isn't listed, check the serial number before ordering.

Which numbers it replaces

12577021 replaces 9968026. If your parts manual or the old box shows any of those numbers, this is the correct current replacement — no fitment change.

Lock Nut M20 x 1.5, Cl 05 — fits 90 models across the New Holland lineup — 1257702112577021 · $31.80
In Stock
$31.80In Stock