O-Ring

Enhance the performance of your Case Construction equipment with the durable O-Ring #510120. Designed for optimal sealing and reliability, this essential part ensures efficient operation, reducing downtime and maintenance costs in heavy-duty applications. Perfect for any construction project.

Compatible equipment

This part fits POCLAIN CRAWLER EXCAVATOR, CASE FELLER/BUNCHER CRAWLER EXCAVATOR, CASE CRAWLER EXCAVATOR (NORTH AMERICA), CASE CRAWLER TRACTOR, SERIES - CASE UNI-LOADER SKID STEER LOADER, CASE UNI-LOADER SKID STEER LOADER, CASE UNI-LOADER SKID STEER LOADER W/DEUTZ ENGINE, POCLAIN CRAWLER EXCAVATOR (S/N 12321 & AFTER), POCLAIN CRAWLER EXCAVATOR (S/N 8321 & AFTER), CASE UNI-LOADER SKID STEER LOADER (AFTER S/N JAF0069386), CASE UNI-LOADER SKID STEER LOADER (S/N JAF0069587 & AFTER), CASE UNI-LOADER SKID STEER LOADER (NORTH AMERICA), POCLAIN CRAWLER EXCAVATOR - CK (12440-13030) - CL (8441-8714), POCLAIN CRAWLER EXCAVATOR - ELECTRICAL MOTOR (ZAIRE), DROTT LOGGER & HEAVY DUTY CRAWLER EXCAVATOR, CASE SKID KING WHEEL LOADER, CASE TRENCHER, DROTT SERIES-A CRAWLER EXCAVATOR, CASE SKID STEER LOADER, CASE LONG TRACK CRAWLER TRACTOR, IND - CASE CRAWLER TRACTOR, BACKHOE LOADER - TIER 3 NRC, BACKHOE LOADER - TIER 4B, LOADER BACKHOE (TIER 3), SERIES 2 LOADER BACKHOE - ASN JJG0239360, LOADER BACKHOE (NORTH AMERICA), SERIES 3 LOADER BACKHOE TIER 3 (NA) - ASN N8C5040000, SERIES 3 LOADER BACKHOE TIER 3 (NA) - ASN N8C508000, BACKHOE LOADER (LIVERY) - TIER 3 NRC, BACKHOE LOADER (LIVERY) - TIER 4B, BACKHOE LOADER 2WD - TIER 3 NRC - MY18, 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, BACKHOE LOADER (LIVERY) - WIDE TRACK - TIER 3 NRC, BACKHOE LOADER (LIVERY) - 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, SERIES 2 LOADER BACKHOE - ASN JJG0210575, SERIES 3 LOADER BACKHOE TIER 3 (NA) - ASN N7C431854, CASE TURBO HORIZONTAL DIRECTIONAL DRILLING MACHINE, 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, POCLAIN WHEELED EXCAVATOR, CASE SKID STEER LOADER - ASN JAF0318922 (NA) JAF0352169 (EU), CASE CONSTRUCTION KING LOADER BACKHOE, CASE CRAWLER TRACTOR (UP TO S/N 7083999), CASE INDUSTRIAL CRAWLER TRACTOR (AFTER S/N 7084000), CASE SKID STEER LOADER - ASN JAF0352234 (NA) JAF0352715 (EU), CASE SKID STEER LOADER - ASN JAF0320050 (NA) JAF0274262 (EU), CASE SKID STEER LOADER - ASN JAF0311357 (NA) JAF0274360 (EU), SNEAKER - SERIES-C TRENCHER, POCLAIN CRAWLER EXCAVATOR (NORTH AMERICA), CASE UNIT LOADER including models 115CL, 1187C, 125B, 1450B, 1455B, 1500, 1529, 160CK, 160CKS, 160CL, 170B, 1818, 1825, 1835C, 1838, 1840, 1845C, 220, 220B, 220CKS, 300C, 360, 40EC, 40XT, 40YC.

Frequently asked questions

What is the part number?

The manufacturer part number is 510120.

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.