O-ring

Enhance your heavy equipment’s performance with the Case Construction O-Ring #A35959. Designed for durability and precision, this essential component ensures optimal sealing and reliability, keeping your machinery running smoothly in the toughest conditions. Perfect for maintenance and repairs.

Compatible equipment

This part fits CASE GASOLINE ENGINE, CASE LOADER/LANDSCAPER TRACTOR, CASE DRAFT-O-MATIC TRACTOR (S/N 8262800 TO 8297800), CASE DRAFT-O-MATIC TRACTOR (S/N 8297801 TO 8650135), CASE CONSTRUCTION KING WHEEL TRACTOR, CASE TRACTOR (S/N 8656925 & AFTER), CASE CONSTRUCTION KING LOADER BACKHOE, CASE CONSTRUCTION KING FORKLIFT, CASE CONSTRUCTION KING TRACTOR (BSN 8685800) (NORTH AMERICA), CASE CONSTRUCTION KING TRACTOR W/SHUTTLE TRANSMISSION, CASE CONSTRUCTION KING WHEEL TRACTOR W/HYDROSTATIC TRANSMISSION, CASE SUPER-D CONSTRUCTION KING LOADER BACKHOE, CASE TRENCHER, CASE MILITARY AIRCRAFT TOWING TRACTOR (DSA700-69-C-H570), CASE MILITARY AIRCRAFT TOWING TRACTOR (DSA700-72-C-8476) including models 188, 380CK, 430, 430CK, 470, 480B, 480C, 480CK, 480D, 480LL, 530, 530CK, 570, 580, 580B, 580C, 580D, 580SD, 584C, 584D, 585C, 585D, 586C, 586D, DH5.

Frequently asked questions

What is the part number?

The manufacturer part number is A35959.

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.