The 100321A1 key is a genuine OEM CASE Construction drive component used to secure rotating parts against relative motion, available from Southeastern Equipment Company with fast nationwide shipping. Specifications Part Number 100321A1 Brand CASE CONSTRUCTION Category Key Compatible equipment This part fits Loader including models 1021F, 1021G, 1021G+, 1021G2, 1021G2 WHEEL LOADER, 1021G WHEEL LOADER, 1121F, 1121G, 1121G+, 1121G2, 1121G2 WHEEL LOADER, 1121G WHEEL LOADER, W270C, W300C. Frequently asked questions What is the part number? The manufacturer part number is 100321A1. 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.