O-ring

Enhance the performance of your Case Construction equipment with the durable O-Ring #87421145. Designed for optimal sealing and reliability, this essential part ensures efficient operation, reducing downtime and maintenance costs in heavy-duty applications.

Compatible equipment

This part fits WHEEL LOADER - TIER 4B (NA), CASE COMFORT KING DRAFT-O-MATIC TRACTOR, CASE AGRI-KING TRACTOR (PRIOR TO S/N 8675001), CASE AGRI-KING TRACTOR (S/N 8675001 & AFTER), CASE CRAWLER EXCAVATOR, CASE CRUZ-AIR WHEELED EXCAVATOR, CASE LONG TRACK/TURNABLE LEVELER CRAWLER EXCAVATOR, CASE AGRI-KING DIESEL TRACTOR, 90 DT - FIAT TRACTOR, CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000), CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7109000 TO 7110299), CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER), CASE CRAWLER TRACTOR, CASE CRAWLER TRACTOR (NORTH AMERICA), CASE LOGGER CRAWLER EXCAVATOR, CASE FELLER/BUNCHER CRAWLER EXCAVATOR, CASE CRAWLER EXCAVATOR (NORTH AMERICA), CASE AGRI-KING TRACTOR (PRIOR TO S/N 8736001), CASE AGRI-KING TRACTOR (S/N 8736001 & AFTER), KIT PUMP MOUNTING W/LOADER FOR FMD FPM FSM TRACTORS, KIT HYDRAULIC USED W/LOADER ON FMD FPM FSM TRACTORS, 90 - FIAT TRACTOR, CASE AGRI-KING TRACTOR (PRIOR TO S/N 8727601), CASE AGRI-KING TRACTOR (S/N 8727601 & AFTER), 90 DT - FIAT TRACTOR (LA), INTERNATIONAL HARVESTER COTTON HARVESTER, INTERNATIONAL HARVESTER COMBINE (NORTH AMERICA), CASE IH AXIAL-FLOW COMBINE (NORTH AMERICA), INTERNATIONAL HARVESTER COMBINE (EUROPE), CASE TRACTION KING DIESEL TRACTOR, CASE IH AXIAL-FLOW COMBINE, CASE AGRI-KING TRACTOR (''''SPIRIT OF ''76'''' OPTION), CASE IH AXIAL-FLOW COMBINE (S/N JJC0032630 & AFTER) (NORTH AMERICA), CASE IH AXIAL-FLOW COMBINE (PRIOR TO S/N JJC0034705) (NORTH AMERICA), CASE IH AXIAL-FLOW COMBINE (S/N JJC0034705 & AFTER) (NORTH AMERICA), CRAWLER DOZER TIER 2, CRAWLER DOZER, CASE IH COTTON HARVESTER, CASE DIESEL TRACTOR (PRIOR TO S/N 17895000), CASE DIESEL TRACTOR (S/N 17895000 THRU 002 & UP), NH LARGE SQUARE BALER, CASE IH COTTON PICKER, CASE DIESEL TRACTOR, CASE DIESEL TRACTOR (PRIOR TO S/N 17897500), CASE DIESEL TRACTOR (S/N 17897500 TO 17897505 17897510 & AFTER, UTILITY BACKHOE, CASE IH COTTON EXPRESS COTTON PICKER, LOADER AND BACKHOE, 3 CYL AG HIGHWAY TRACTOR, CASE TRACTION KING TRACTOR (AFTER S/N 8762940), CASE TRACTION KING TRACTOR (BEFORE S/N 8762940), INTERNATIONAL TRACTOR, CASE IH COTTON EXPRESS COTTON PICKER (AFTER S/N JJC0249500), CASE IH COTTON EXPRESS COTTON PICKER (BEFORE S/N JJC0249499), BACKHOE, INTERNATIONAL INDUSTRIAL DIESEL TRACTOR, INTERNATIONAL INDUSTRIAL TRACTOR, CASE TRACTION KING TRACTOR, SERIES - CASE WHEEL TRACTORS, SERIES - CASE TRACTORS, CASE SKID KING WHEEL LOADER, CASE CRAWLER TRACTOR (S/N 3019001 TO 3023000), CASE CRAWLER TRACTOR (S/N 3023001 TO 3032301), CASE CRAWLER TRACTOR (S/N 3032301 TO 3039619), CASE CRAWLER TRACTOR (S/N 3039619 & AFTER), BACKHOE AND LOADER FOR 530CK TRACTORS, BACKHOE FOR W7 W9A W9B W10, CASE GAS & DIESEL WHEEL TRACTOR, CASE WHEEL TRACTOR, BACKHOE AND LOADER, BACKHOE FOR 310G AND 450 CRAWLER, BACKHOE FOR 580CK, BACKHOE FOR W SERIES RIGID LOADERS, LOADER, BACKHOE FOR CRAWLER MODELS 750 850 1150, BACKHOE FOR 680CK TRACTOR, BACKHOES FOR CRAWLER MODELS 750 850 1150, BACKHOE FOR 450 450B 850 850B AND W14, CASE LOADER BACKHOE ATTACHMENTS, DROTT SERIES-D CRAWLER EXCAVATOR (S/N 6266131 & AFTER), LOADER AND BACKHOE FOR 580CK SERIES B, DROTT SERIES-D CRAWLER EXCAVATOR (S/N 6270716 & AFTER), DROTT SERIES-E CRAWLER EXCAVATOR (S/N 6271140 & AFTER), INTERNATIONAL HARVESTER FERTILIZER PLANTER, SERIES - CASE DIESEL TRACTORS, INTERNATIONAL HARVESTER COMBINE, DROTT SERIES-B FELLER/BUNCHER CRAWLER EXCAVATOR, DROTT SERIES-B CRAWLER EXCAVATOR, COTTON EXPRESS COTTON PICKER, CASE CRAWLER TRACTOR (S/N 3012301 & AFTER), CASE TRACTOR, CASE IH TRACTOR, CASE CRAWLER TRACTOR (PRIOR TO S/N 3038436), CASE CRAWLER TRACTOR (S/N 3038436 TO 3060306), CASE CRAWLER TRACTOR (S/N 3060306 & AFTER), CASE LONG TRACK CRAWLER TRACTOR, CASE TRACTOR (S/N 8656925 & AFTER), CASE CABLE LAYER W/301B ENGINE (PRIOR TO S/N 3058169), CASE CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER), CASE CONSTRUCTION KING LOADER BACKHOE, CASE WHEEL TRACTOR W/LOADER BACKHOE, FARMALL DIESEL TRACTOR, FARMALL GAS TRACTOR, INTERNATIONAL DIESEL TRACTOR, INTERNATIONAL GAS TRACTOR, INTERNATIONAL CHISEL PLOW, MCCORMICK-INTERNATIONAL CHISEL PLOW, SERIES - 4 CYL TRACTOR LOADER BACKHOE, 3 CYL TRACTOR LOADER BACKHOE, 4 CYL TRACTOR LOADER BACKHOE, TRACTOR LOADER BACKHOE, CASE CONSTRUCTION KING LOADER BACKHOE - SUPPLEMENT, CASE CONSTRUCTION KING LOADER BACKHOE AFTER S/N 3739160 (EUROPE), CASE CONSTRUCTION KING LOADER BACKHOE BEFORE S/N 3739160 (EUROPE), CASE SUPER-D CONSTRUCTION KING LOADER BACKHOE, CASE SUPER-E CONSTRUCTION KING LOADER BACKHOE, CASE WHEEL LOADER (PRIOR TO S/N JAK0021701) (NORTH AMERICA), CASE WHEEL LOADER (S/N JAK0021701 & AFTER) (NORTH AMERICA), FARMALL TRACTOR, CASE CONSTRUCTION KING LOADER BACKHOE (S/N 9101501 TO 9102281), CASE CONSTRUCTION KING LOADER BACKHOE (UP TO S/N 9101501), CASE SERIES-B CONSTRUCTION KING LOADER BACKHOE (S/N 9102282 TO 9103968, CASE SERIES-B LOADER BACKHOE (S/N 9103967 TO 9105879), CASE SERIES-C CONSTRUCTION KING LOADER BACKHOE (S/N 910600 TO 9111008), CASE SERIES-C CONSTRUCTION KING LOADER BACKHOE (S/N 9111009 & AFTER), CASE IH MAGNUM TRACTOR (NORTH AMERICA), INTERNATIONAL HARVESTER COMBINE (S/N 23001 & AFTER), CASE CRAWLER TRACTOR (AFTER S/N 7070351), CASE TRENCHER, INTERNATIONAL HARVESTER COTTON PICKER, INTERNATIONAL HARVESTER COMBINE (S/N 8001 & AFTER), CASE WHEEL LOADER (NORTH AMERICA), CASE WHEEL LOADER (S/N JEE0155000 & BEFORE), CASE WHEEL LOADER (S/N JEE0155001 & AFTER), WHEEL LOADER TIER 3 NA/EU, WHEEL LOADER - TIER 4 / TIER 2 (NA), FORD TRACTOR, CASE CRAWLER TRACTOR (EUROPE), CASE CRAWLER TRACTOR (S/N 7073469 & AFTER) (NORTH AMERICA), CASE CRAWLER TRACTOR (UP TO S/N 7073468) (NORTH AMERICA), CASE AGRI-KING TRACTOR (PRIOR TO P.I.N. 8675001), FORAGE HARVESTER, CASE IH PULL-TYPE FORAGE HARVESTER, 6 CYL AG TRACTOR, CASE IH SELF-PROPELLED WINDROWER TRACTOR, 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 IH SELF-PROPELLED ROTARY WINDROWER TRACTOR, DOUBLE WINDROW ATTACHMENT, CASE IH MAGNUM TRACTOR, COMBINE FEEDER, INTERNATIONAL HARVESTER COMBINE (S/N 8000 & BEFORE), CASE IH STEIGER 4WD TRACTOR (FROM S/N 17900650 TO JCB0003599), CASE IH STEIGER 4WD TRACTOR (PRIOR TO S/N 17900650), CASE IH STEIGER 4WD TRACTOR (S/N JCB0003600 & AFTER), CASE IH STEIGER 4WD TRACTOR (AFTER S/N 17900649), NA BACKHOE LOADER, LOADER BACKHOE, BACKHOE LOADER TIER 3 (2008), WIDE COMFORT CAB, WIDE SUPER COMFORT CAB - 90 SERIES, 282 - 6 CYLINDER DIESEL ENGINE, 361 - 6 CYLINDER DIESEL ENGINE, 361 - 6 CYLINDER TURBO DIESEL ENGINE, FIAT TRACTOR, TRACTOR - TIER 4A - S/N ZXXX5XXXX, BACKHOE LOADER UPGRADE 2000, LOADER BACKHOE (NA) ASN 031044996, BACKHOE LOADER (NA VERSION) - S/N: 031044851 AND AFTER, BACKHOE LOADER (NA VERSION) - S/N: 031044887 AND AFTER, CHEMICAL & FERTILIZER APPLICATOR EQUIPMENT, CHEMICAL PRE-EMERGE ATTACHMENT (150 GALLON), CHEMICAL PRE-EMERGE ATTACHMENT (4-ROW & 6-ROW) - 1963, CHEMICAL PRE-EMERGE ATTACHMENT (4-ROW & 6-ROW) - 1966, CASE MILITARY AIRCRAFT TOWING TRACTOR (DSA700-69-C-H570), CASE MILITARY AIRCRAFT TOWING TRACTOR (DSA700-72-C-8476), SMALL FRAME TRACTOR TIER 4 (NA) - ZARH06086 AND AFTER, TRACTOR - TIER 4B CVT (NA), TRACTOR - TIER 4B PST (NA), CASE IH MAXXUM DIESEL TRACTOR, TRACTOR - TIER 4B, TRACTOR - TIER 4B - MY15 (MADE IN BASILDON), TRACTOR - TIER 4B - MY15, TRACTOR 4WD FPS W/CAB LWB - TIER 3 (BR), TRACTOR - TIER 4B., SPECIAL TRACTOR - L/CAB - TIER 4A, SPECIAL TRACTOR - L/CAB - TIER 4A - MY18, SPECIAL TRACTOR - W/CAB - TIER 4A, SPECIAL TRACTOR - W/CAB - TIER 4A - MY18, TRACTOR - TIER 4A - S/N ZXXY5XXXX, CLASSIC TRACTOR - STAGE V, CLASSIC TRACTOR - TIER 4B - MY18, AUTO COMMAND TRACTOR - STAGE V, AUTO COMMAND TRACTOR - TIER 4B - MY18, AUTOCOMMAND TRACTOR - TIER 4B, AUTOCOMMAND TRACTOR - TIER 4B - MY15, CLASSIC TRACTOR - TIER 4B - MY15, SIDEWINDER II TRACTOR - STAGE V, SIDEWINDER II TRACTOR - TIER 4B - MY15, SIDEWINDER II TRACTOR - TIER 4B - MY18, POWER COMMAND TRACTOR FROM S/N Z9BG07156 / Z9BG40124, POWER COMMAND TRACTOR FROM S/N Z9BG07719 / Z9BG40112, POWER COMMAND TRACTOR FROM S/N Z9BG07XXX / Z9BG40114, POWER COMMAND TRACTOR FROM S/N Z9BG07XXX / Z9BG40117, CRAWLER TRACTOR - W/CAB - TIER 4A, CRAWLER TRACTOR - W/O CAB - TIER 4A, CRAWLER TRACTOR - TIER 4A, TRACTOR, CASE WHEEL LOADER (S/N 8208732 TO 9808999), CASE WHEEL LOADER (S/N 9809000 TO 9811800), CASE WHEEL LOADER (S/N 9811801 & AFTER), CASE UNIT LOADER, CASE WHEEL LOADER, WHEEL LOADER TIER 3 (NA), CASE ARTICULATED WHEEL LOADER, CASE WHEEL LOADER (S/N 9811301 & AFTER) (NORTH AMERICA), SERIES - CASE WING CHISEL PLOW including models 1021G, 1030, 1070, 1080, 1080B, 1085B, 1085C, 1086B, 1088, 1090, 1121G, 115, 1150, 1150B, 1150C, 1150D, 1155D, 1170, 1175, 1187, 1187B, 1187C, 125B, 1270, 1285.

Frequently asked questions

What is the part number?

The manufacturer part number is 87421145.

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.