Nut Lock

Enhance your heavy equipment’s performance with the Case Construction Nut Lock #412066. Designed for durability and reliability, this essential component ensures secure fastening, keeping your machinery running smoothly on the toughest job sites. Perfect for Case equipment maintenance and repairs.

Compatible equipment

This part fits WHEEL LOADER - TIER 4 (NA), WHEEL LOADER - TIER 4B (NA), GRAIN HEADER, CASE CRAWLER EXCAVATOR - DUAL POWER ELECTRIC & DIESEL ENGINE, CASE LONG TRACK/TURNABLE LEVELER CRAWLER EXCAVATOR, WHEEL LOADER TIER 4 (NA), SERIES 3 CRAWLER DOZER TIER 3 (NA/EU), CRAWLER DOZER - TIER 4A, CRAWLER DOZER - TIER 4B, CASE IH ADVANCED SEED METER PLANTER, COMPACT WHEEL LOADER STD TC - TIER 4, COMPACT WHEEL LOADER STD ZB - TIER 4, WHEEL LOADER TIER 3 (NA), CASE CRAWLER EXCAVATOR (NORTH AMERICA), NH COMBINE - BASE UNIT, SERIES - CASE IH MANURE SPREADERS, NH HAY TEDDER, NH HAY TEDDER W/ MANUAL FOLD, CRAWLER DOZER TIER 3 (NA/EU) (HYDRO), CASE CRAWLER EXCAVATOR, CASE UNI-LOADER SKID STEER LOADER, CASE UNI-LOADER SKID STEER LOADER (NORTH AMERICA), RIGID GRAIN HEAD, FLEXIBLE GRAIN HEAD, 30F - FLEXIBLE GRAIN HEAD (BR), COMBINE HEADER, 15 - GRAIN HEADER (CHN), 17 - GRAIN HEADER (CHN), 20 - GRAIN HEADER (CHN), CASE DIESEL TRACTOR, CASE IH DIESEL TRACTOR, PLANTER 23 ROW 15IN SPACING SPLIT ROW PIVOT TRANSPORT, PLANTER 24 ROW 15IN SPACING SPLIT ROW PIVOT TRANSPORT, PLANTER 24 ROW 20IN SPACING PIVOT TRANSPORT, PLANTER 24 ROW 22IN SPACING PIVOT TRANSPORT, PLANTER 31 ROW 15IN SPACING SPLIT ROW PIVOT TRANSPORT, PLANTER 32 ROW 15IN SPACING SPLIT ROW PIVOT TRANSPORT, PLANTER 24 ROW 2 POINT HITCH FRONT FOLD, PLANTER 24 ROW DRAW BAR FRONT FOLD, PLANTER 24 ROW 30IN SPAC FRONT FOLD, PLANTER 36 ROW 20IN SPAC FRONT FOLD, PLANTER 36 ROW 22IN SPAC FRONT FOLD, PLANTER 47 ROW 15IN SPAC FRONT FOLD, COMPACT WHEEL LOADER TIER 2 (NA), SMALL WHEEL LOADER, POCLAIN CRAWLER EXCAVATOR, POCLAIN CRAWLER EXCAVATOR - CK (12440-13030) - CL (8441-8714), CASE IH 6-ROW CORN HEADER 30'''' ROW SPACING, CASE IH 6-ROW CORN HEADER 36'''' ROW SPACING, CASE IH 6-ROW CORN HEADER 38'''' ROW SPACING, CASE-IH 8-ROW CORN HEADER 22'''' ROW SPACING, CASE-IH 8-ROW CORN HEADER 30'''' ROW SPACING, CASE-IH 8-ROW CORN HEADER 36'''' ROW SPACING, CASE-IH 8-ROW CORN HEADER 38'''' ROW SPACING, POCLAIN CRAWLER EXCAVATOR - ELECTRICAL MOTOR (ZAIRE), DROTT LOGGER & HEAVY DUTY CRAWLER EXCAVATOR, CASE-IH 12-ROW CORN HEADER 20'''' ROW SPACING, CASE-IH 12-ROW CORN HEADER 22'''' ROW SPACING, CASE-IH 12-ROW CORN HEADER 30'''' ROW SPACING, COMPACT WHEEL LOADER HS ZB - TIER 4, CASE IH CULTIVATOR, PATRIOT SPRAYER TIER 4A, CASE IH AXIAL-FLOW COMBINE (RU) ASN HAJ300001, 30 - COMBINE CORN HEAD, 36 - COMBINE CORN HEAD, 38 - COMBINE CORN HEAD, 70 - COMBINE CORN HEAD, 22 - COMBINE CORN HEAD, 20 - COMBINE CORN HEAD, AXIAL-FLOW COMBINE (NA) ASN HAJ0300001, CASE IH AXIAL-FLOW COMBINE (NA) ASN HAJ300001, 25FT L - GRAIN HEADER, 30FT - GRAIN HEADER, 35FT - GRAIN HEADER, 41FT - GRAIN HEADER, PATRIOT SPRAYER, CASE IH COTTON EXPRESS COTTON PICKER, COTTON EXPRESS COTTON PICKER, ROW INDEPENDENT MAIZHEADER (NA), SKID STEER BSN 430 NA N7M479683 430 EU N7M479546, SKID STEER - 440 NA BSN N8M474469 440 EU BSN N8M407542, SKID STEER - SERIES 3 440 NA ASN N8M474469 440 EU ASN N8M407542, CORN HEADER 8 ROW 22IN SPACING, 30 - CORN HEADER, COMPACT TRACK LOADER - BSN N7M483467, COMPACT TRACK LOADER - SERIES 3 ASN N7M483467, CORN HEADER 12 ROW 20IN SPACING, CORN HEADER 12 ROW 22IN SPACING, CORN HEADER 16 ROW 20IN SPACING, CORN HEADER 16 ROW 22IN SPACING, 30 - CORN HEADER 30FT, CORN HEADER 18 ROW 20IN SPACING, CORN HEADER 18 ROW 22IN SPACING, NH DISC MOWER, PATRIOT SPRAYER TIER 4, SKID STEER - BSN N7M454787, COMPACT TRACK LOADER - BSN N8M458846, SKID STEER TIER 2 P.I.N. N7M458414 & PRIOR, SKID STEER TIER 3 P.I.N. N7M464019 & AFTER, COMPACT TRACK LOADER - BSN N7M464019, COMPACT TRACK LOADER - SERIES 3 ASN N7M464019, SKID STEER - TIER 3 ASN N7M452623, SKID STEER BSN N7M452623, HESSTON BIG RECTANGULAR BALER - BELGIUM, AXIAL-FLOW COMBINE (NA), COMBINE TIER 4, COMBINE - TIER 3, CASE WHEEL LOADER (BEFORE S/N JEE0135500), CASE WHEEL LOADER (S/N JEE0135501 & AFTER) - ENGINE SUPPLEMENT, CASE WHEEL LOADER - NA (S/N JEE0135501 & AFTER), LOADER LANDSCAPER, LOADER LANDSCAPER - LIVERY - TIER 4B, LOADER LANDSCAPER - TIER 4B, LOADER LANDSCAPER - TIER 4A ASN NCC570600, LOADER BACKHOE (NORTH AMERICA), SERIES 2 LOADER BACKHOE - ASN JJG0239360, LOADER BACKHOE (NA) - ASN JJG0285001, BACKHOE LOADER (LIVERY) - TIER 3 NRC, BACKHOE LOADER (LIVERY) - TIER 4B, BACKHOE LOADER - TIER 3 NRC, BACKHOE LOADER - TIER 4A - FROM PIN NCC560000, BACKHOE LOADER - TIER 4B, BACKHOE LOADER 2WD - TIER 3 NRC - MY18, BACKHOE LOADER 2WD - TIER 3 NRC - MY19, BACKHOE LOADER 2WD - TIER 4B - MY18, BACKHOE LOADER 2WD - TIER 4B - MY19, BACKHOE LOADER 4WD - TIER 3 NRC - MY18, BACKHOE LOADER 4WD - TIER 3 NRC - MY19, BACKHOE LOADER 4WD - TIER 4B - MY18, BACKHOE LOADER 4WD - TIER 4B - MY19, LOADER BACKHOE - TIER 3 NRC, LOADER BACKHOE - BSN JJG0239361, BACKHOE LOADER - TIER 4A - FROM PIN NCC564000, BACKHOE LOADER (LIVERY) - WIDE TRACK - TIER 3 NRC, BACKHOE LOADER (LIVERY) - WIDE TRACK - TIER 4B, BACKHOE LOADER - WIDE TRACK - TIER 4B, BACKHOE LOADER 4WD - WIDE TRACK - TIER 3 NRC - MY18, BACKHOE LOADER 4WD - WIDE TRACK - TIER 3 NRC - MY19, BACKHOE LOADER 4WD - WIDE TRACK - TIER 4B - MY18, BACKHOE LOADER 4WD - WIDE TRACK - TIER 4B - MY19, BACKHOE LOADER WIDE TRACK - TIER 3 NRC, BACKHOE LOADER WIDE TRACK - TIER 4A, CASE FORKLIFT, SERIES 3 FORKLIFT TIER 3 - ASN N8C510000 (NA), FORKLIFT - LIVERY - TIER 4B, FORKLIFT - TIER 4A, FORKLIFT - TIER 4B, NH BIG BALER, NH BIG BALER W/CUTTER, LOADER BACKHOE, SERIES 2 LOADER BACKHOE - ASN JJG0210575, BACKHOE LOADER - TIER 4A, FRONT END LOADER, CASE WHEEL LOADER, WHEEL LOADER WASTE HANDLING - TIER 4A (NA), MODULE EXPRESS COTTON PICKER, MODULE EXPRESS, SERIES 1 CRAWLER - 07/01/2002 - 01/31/2005, SERIES 2 CRAWLER TIER 2 - 01/21/2005 - 06/16/2006, SERIES 3 CRAWLER TIER 2 - 06/20/2006 - 12/31/2008, CRAWLER DOZER TIER 3 (HYDRO), CASE CRAWLER EXCAVATOR (PRIOR TO S/N CGG0011601), CASE CRAWLER EXCAVATOR (S/N CGG0011601 & AFTER), CASE WHEELED EXCAVATOR - RAIL-ROAD (GERMANY), CASE CRAWLER EXCAVATOR (S/N 120301 & AFTER), CASE CRAWLER EXCAVATOR (S/N 10501 & AFTER), AXIAL-FLOW COMBINE, CASE IH MAGNUM TRACTOR (NORTH AMERICA), COMBINE - TIER 4 COMMON CAB, CASE IH MAGNUM TRACTOR, CASE WHEEL LOADER (NORTH AMERICA), WHEEL LOADER - TIER 4 / TIER 2 (NA), COMBINE - TIER 4, COMBINE - TIER 4B (NA) - 2016, COMBINE - TIER 4B (NA) ASN YFG230001, COMBINE - TIER 4B (NA) BSN YFG230000, MY18 COMBINE TIER 4B (NA), MY19 COMBINE TIER 4B (NA), MY20 COMBINE TIER 4B (NA), ROW INDEPENDENT MAIZHEADER (NA) - 2012, ROW INDEPENDENT MAIZHEADER (NA) - 2015, CRAWLER DOZER TIER 3, CASE SKID STEER LOADER, CASE SKID STEER LOADER - ASN JAF0318922 (NA) JAF0352169 (EU), COMBINE - BASE UNIT, FRONT END LOADER - MY18, CASE WHEEL LOADER (S/N JEE0155000 & BEFORE), CASE WHEEL LOADER (S/N JEE0155001 & AFTER), WHEEL LOADER TIER 3 NA/EU, MY18 COMBINE TIER 4B REDEKOP CHOPPER OPTION (NA), CASE SKID STEER LOADER - ASN JAF0352234 (NA) JAF0352715 (EU), CASE IH BALE WRAPPER, CASE CRAWLER EXCAVATOR (S/N 15401-) (S/N 106801-), CASE CRAWLER EXCAVATOR (S/N 74163-74418) (S/N 15201-), CASE TURNTABLE LEVELER CRAWLER EXCAVATOR, CASE EXCAVATOR - TILTING TOOL ATTACHMENT W/QUICK COUPLER, CASE/POCLAIN CRAWLER EXCAVATOR (S/N 9501 & AFTER), CASE SKID STEER LOADER - ASN JAF0320050 (NA) JAF0274262 (EU), BACKHOE, WHEEL LOADER TIER 3 (NA/EU), BACKHOE - 90IN, BACKHOE - 102IN, CASE SKID STEER LOADER - ASN JAF0311357 (NA) JAF0274360 (EU), CASE TURBO TRENCHER, 1230 - CORN HEADER, 830 - CORN HEADER, 16-30 - CORN HEADER, COMBINE CORN HEADER, COMBINE CORN HEAD, C9 12V ENGINE, SUGAR CANE HARVESTER (BRAZIL) (TYRE MACHINE) - ASN 880001, SUGAR CANE HARVESTER TYRE MACHINE - TIER 3 (INT) - MY17, SUGAR CANE HARVESTER TYRE MACHINE - TIER 3 (NAR) - MY17, SUGAR CANE HARVESTER (BRAZIL) (TRACK MACHINE) - ASN 880001, SUGAR CANE MULTI ROW BR, SUGAR CANE HARVESTER TRACK MACHINE - TIER 3 (NAR) - MY17, SUGAR CANE HARVESTER TRACK MACHINE - SR - T4.B (NAFTA), SUGAR CANE HARVESTER TRACK MACHINE SR - TIER 3, BACKHOE LOADER - STRAIGHT LOADER ARM (LIVERY) - TIER 3 NRC (LAR), BACKHOE LOADER CENTER PIVOT STRAIGHT LOADER ARM 2WD - TIER 3 - MY19, BACKHOE LOADER CENTER PIVOT STRAIGHT LOADER ARM 4WD (LAR) - TIER 3 - MY19, BACKHOE LOADER (LIVERY) - TIER 4B (NA), BACKHOE LOADER CENTER PIVOT STRAIGHT LOADER ARM 2WD - TIER 4B - MY19, BACKHOE LOADER CENTER PIVOT STRAIGHT LOADER ARM 4WD - TIER 4B - MY19, BACKHOE LOADER - TOOL CARRIER (LIVERY) - TIER 3 NRC (LAR), BACKHOE LOADER CENTER PIVOT TOOL CARRIER 4WD (LAR) - TIER 3 - MY19, NH BALE WRAPPER, BACKHOE LOADER CENTER PIVOT STRAIGHT LOADER ARM 4WD - TIER 3 - MY19, BACKHOE LOADER - STRAIGHT LOADER ARM (LIVERY) - TIER 3 NRC, BACKHOE LOADER - TOOL CARRIER (LIVERY) - TIER 3 NRC, BACKHOE LOADER CENTER PIVOT TOOL CARRIER 4WD - TIER 3 - MY19, BACKHOE LOADER - LONG REACH - TIER 4A, BACKHOE LOADER - LONG REACH - TIER 4B, BACKHOE LOADER - TOOL CARRIER (LIVERY) - TIER 4B, BACKHOE LOADER - TOOL CARRIER - TIER 4A, BACKHOE LOADER - TOOL CARRIER - TIER 4B, BACKHOE LOADER CENTER PIVOT TOOL CARRIER 4WD - TIER 4B - MY19, BIG RECTANGULAR BALER, BIG RECTANGULAR BALER UNTIL S/N XXX237999, BIG RECTANGULAR BALER FROM S/N XXX238001 ONWARDS, PLUS BIG RECTANGULAR BALER, ROTOR CUTTER - HIGH DENSITY, COMPACT TRACK LOADER P.I.N. N7M457281 & PRIOR, COMPACT TRACK LOADER P.I.N. N7M457282 & AFTER, COMPACT TRACK LOADER, COMPACT TRACK LOADER - NRC, CORN HEAD, CASE IH COTTON PICKER, REVELATION COMBINE - TIER 4B (NAFTA), COMBINE ELEVATION - TIER 4B (NA), REVELATION COMBINE - TIER 5 (NAFTA), REVELATION COMBINE TRACK - TIER 4B (NAFTA), REVELATION COMBINE TRACK - TIER 5 (NAFTA), COMBINE - TIER 4B (NA), TIER4 COMBINES, REVELATION COMBINE - TIER 4A (NAFTA) including models 1021F, 1021G, 1030, 1088, 1121F, 1121G, 1150K, 1150M LT, 1150M WT, 1150M WT/LGP, 1200, 121F, 1221E, 125B, 1400, 1500, 156, 162, 163, 1650L, 1650M LGP PAT, 1650M WT/LGP, 1650M XLT, 1650M XLT BD, 1650M XLT PAT.

Frequently asked questions

What is the part number?

The manufacturer part number is 412066.

Is this a genuine OEM part?

Yes. Southeastern Equipment stocks OEM and quality aftermarket parts for heavy equipment. Contact us if you need a specific OEM source or aftermarket option.

Will this fit my machine?

See the compatible equipment list above. If your model is not listed, call us with your machine's serial number and we can confirm.

Where does this ship from?

Southeastern Equipment Company ships parts nationwide from our US warehouse. Orders placed before 2 PM ET typically ship same day.

Free pickup at any of our 17 branches across Ohio, Indiana, Michigan, and Kentucky. Select your preferred branch at checkout.

30-day no-fault returns. Bought the wrong part? Send it back for a full refund — no restocking fees, no minimums.