Nut Lock

Enhance your heavy equipment’s performance with the Case Construction Nut Lock #37342. Designed for durability and reliability, this essential component ensures secure fastening, minimizing downtime and maximizing efficiency on the job site. Trust Case for quality and precision.

Compatible equipment

This part fits BACKHOES FOR CRAWLER MODELS 750, 850, 1150, BACKHOE FOR 450, 450B, 850, 850B, AND W14, CASE CONSTRUCTION KING LOADER BACKHOE, CASE SUPER-D CONSTRUCTION KING LOADER BACKHOE, CASE TRENCHER, WHEEL LOADER - T4B - STD LINKAGE, WHEEL LOADER - T4B - XR LINKAGE including models 34, 35, 580C, 580D, 580SD, 680H, 680K, 680L, 760, 780B, 780C, 780D, 821G2, 921G2.

Frequently asked questions

What is the part number?

The manufacturer part number is 37342.

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.