O-ring O Ring

Enhance your heavy equipment’s performance with the Case Construction O-Ring #D50034. Designed for durability and precision, this essential part ensures a reliable seal, preventing leaks and maintaining optimal functionality in your machinery. Perfect for all Case models.

Compatible equipment

This part fits CASE CRAWLER TRACTOR, CASE CONSTRUCTION KING LOADER BACKHOE, CASE CONSTRUCTION KING LOADER BACKHOE AFTER S/N 3739160 (EUROPE), CASE CONSTRUCTION KING LOADER BACKHOE BEFORE S/N 3739160 (EUROPE), LOADER BACKHOE (NORTH AMERICA), CASE SUPER-D CONSTRUCTION KING LOADER BACKHOE, CASE SUPER-E CONSTRUCTION KING LOADER BACKHOE, CASE CONSTRUCTION KING FORKLIFT, CASE SERIES-C CONSTRUCTION KING LOADER BACKHOE (S/N 910600 TO 9111008), CASE SERIES-C CONSTRUCTION KING LOADER BACKHOE (S/N 9111009 & AFTER) including models 350, 350B, 480C, 480D, 480E, 480E LL, 480F, 480F LL, 480LL, 580C, 580D, 580E, 580F, 580G, 580K, 580SD, 580SE, 584C, 584D, 584E, 585C, 585D, 585E, 586C, 586D.

Frequently asked questions

What is the part number?

The manufacturer part number is D50034.

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.