O-Ring 0.139IN Thick X 3.734IN ID -240 Cl 5 75 Duro

Enhance your heavy equipment’s performance with the Case Construction O-Ring. Measuring 0.139 inches thick and 3.734 inches ID, this durable component (240 Cl 5, 75 Duro) ensures reliable sealing for optimal operation. Perfect for demanding applications.

Compatible equipment

This part fits CASE LONG TRACK/TURNABLE LEVELER CRAWLER EXCAVATOR, CRAWLER DOZER - TIER 4A, DROTT CRAWLER EXCAVATOR, CASE CRAWLER EXCAVATOR (NORTH AMERICA), SERIES 3 CRAWLER TIER 3, CRAWLER DOZER - TIER 1, CASE CRAWLER DOZER (TIER 1), CRAWLER DOZER TIER 2, WINCH, POCLAIN CRAWLER EXCAVATOR, POCLAIN CRAWLER EXCAVATOR - CK (12440-13030) - CL (8441-8714), POCLAIN CRAWLER EXCAVATOR - ELECTRICAL MOTOR (ZAIRE), CASE SKID KING WHEEL LOADER, CASE CRAWLER TRACTOR (S/N 3023001 TO 3032301), CASE CRAWLER TRACTOR (S/N 3032301 TO 3039619), CASE CRAWLER TRACTOR (S/N 3039619 & AFTER), BACKHOE FOR 310G AND 450 CRAWLER, BACKHOE FOR 580CK, BACKHOE FOR W SERIES RIGID LOADERS, BACKHOE FOR 680CK TRACTOR, BACKHOES FOR CRAWLER MODELS 750 850 1150, SERIES A INTERNATIONAL LOADER TRACTOR, CASE CRAWLER TRACTOR, CASE LOADER/LANDSCAPER TRACTOR (AFTER S/N JJE0001501), CASE LOADER/LANDSCAPER TRACTOR (BEFORE S/N JJE0001500), DROTT SERIES-A CRAWLER EXCAVATOR, INTERNATIONAL HARVESTER COMPACT LOADER, CASE LOAD KING WHEEL LOADER, CASE WHEEL LOADER (BEFORE S/N JEE0135500), CASE WHEEL LOADER (S/N JEE0135501 & AFTER) - ENGINE SUPPLEMENT, CASE WHEEL LOADER - NA (S/N JEE0135501 & AFTER), TRENCHER SUPPLEMENT (NORTH AMERICAN HOMOLOGATION), CASE WHEEL LOADER (PRIOR TO S/N JAK0021701) (NORTH AMERICA), CASE WHEEL LOADER (S/N JAK0021701 & AFTER) (NORTH AMERICA), CASE TRENCHER, CASE CONSTRUCTION KING LOADER BACKHOE (UP TO S/N 9101501), CASE CONSTRUCTION KING LOADER BACKHOE, CASE WHEELED EXCAVATOR - RAIL-ROAD (GERMANY), CASE CRAWLER TRACTOR (AFTER S/N 7070351), POCLAIN WHEELED EXCAVATOR, CASE WHEEL LOADER (NORTH AMERICA), MOTOR GRADER - ASN 020001, MOTOR GRADER TIER 2- BTW 020101-020187, MOTOR GRADER TIER I (BR) - ASN N8AF07000, MOTOR GRADER - TIER 3 (NA) - ASN N7AF03356, MOTOR GRADER - TIER 3 (NA) - ASN N8AF03592, MOTOR GRADER - DIRECT DRIVE - TIER 3 (BR), MOTOR GRADER - TORQUE CONVERTER - TIER 3 (BR), MOTOR GRADER TIER 3 (NEW CAB), CASE TURBO TRENCHER, MOTOR GRADER - ASN 022001, MOTOR GRADER TIER 2 - ASN 022101, MOTOR GRADER TIER 3 (NA), MOTOR GRADER - ASN N5AF04007, MOTOR GRADER - TIER 3 (NA) - ASN N7AF04232 & N6AF04226, MOTOR GRADER TIER 3 (BR) - ASN N8AF04429, MOTOR GRADER TIER 3 (NA) - ASN N8AF04429, MOTOR GRADER - ASN 024001, MOTOR GRADER TIER 0 - TIER 2 (BR) - ASN N8AF05114, MOTOR GRADER TIER 2 - BTW 024102-024129, MOTOR GRADER TIER 3 (BR) - ASN N8AF05110, MOTOR GRADER TIER 3 (NA) - ASN N7AF05055, MOTOR GRADER TIER 3 (NA) - ASN N8AF05110, 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/POCLAIN CRAWLER EXCAVATOR (S/N 9501 & AFTER), POCLAIN CRAWLER EXCAVATOR (NORTH AMERICA), TELEHANDLER, CASE UNIT LOADER (PRIOR TO S/N 8229367), CASE UNIT LOADER, CASE WHEEL LOADER, CASE WHEEL LOADER (S/N 8174260 & AFTER) including models 1088, 1150M LT, 1150M WT/LGP, 120, 125B, 1850K, 1850K LGP, 1850K LT, 1850K TIER 1, 1850K TIER 2, 1850K XLT, 19, 220, 220B, 300C, 310G, 33, 34, 3400, 350, 350B, 380B, 40EC, 40YC, 4150.

Frequently asked questions

What is the part number?

The manufacturer part number is 9840590.

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.

Ships nationwide. In-stock parts ordered before 2:30 PM ET ship the same business day. Your exact shipping cost and delivery estimate are calculated at checkout from your ZIP code and the part’s size and weight; oversized and truck-freight items may need extra transit time and freight charges.

Free branch pickup is also available across Ohio, Indiana, Michigan, and Kentucky — just choose it at checkout.

30-day returns. New, unused parts in original packaging may be returned within 30 days. Some items — including electrical, special-order, and direct-from-supplier parts — are non-returnable. See our full return policy.