Jam Nut

Enhance your heavy equipment’s performance with the Case Construction Jam Nut #H438943. Designed for durability and precision, this essential component ensures secure connections, optimizing your machinery’s efficiency and reliability on the job site. Perfect for all Case models.

Compatible equipment

This part fits CASE UNI-LOADER SKID STEER LOADER, CASE UNI-LOADER SKID STEER LOADER (EUROPE), CASE UNI-LOADER SKID STEER LOADER (NORTH AMERICA), CASE TRENCHER, CASE SKID STEER LOADER, CASE SKID STEER LOADER - ASN JAF0318922 (NA) JAF0352169 (EU), GRAIN DRYING BIN, 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) including models 1838, 1840, 1845C, 360, 40XT, 460, 560, 60XT, 660, 70XT, 75XT, 760, 85XT, 90XT, 95XT.

Frequently asked questions

What is the part number?

The manufacturer part number is H438943.

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.