Retainer Ring
| Machine | Model | Years |
|---|---|---|
| Loader | 921C | — |
| Loader | 821C | — |
| Trencher | 660 | — |
| Tractor | C100 | — |
| Tractor | C90 | — |
| Tractor | C80 | — |
| Tractor | C70 | — |
| Tractor | C60 | — |
| Tractor | C50 | — |
| Loader | 721C | — |
Enhance your heavy equipment’s performance with the Case Construction Retainer Ring #100-3321. Designed for durability and precision, this essential part ensures secure assembly and reliable operation, making it a must-have for any Case machinery maintenance.
Frequently asked questions
What is the part number?
The manufacturer part number is 100-3321.
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.
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.
- Manufacturer part number
- 100-3321
- Internal SKU
- IC:100-3321
- Brand
- CASE CONSTRUCTION
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 0.0 lb
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.
All 134 fitments
| Machine | Model | Years |
|---|---|---|
| Loader | 921C | — |
| Loader | 821C | — |
| Trencher | 660 | — |
| Tractor | C100 | — |
| Tractor | C90 | — |
| Tractor | C80 | — |
| Tractor | C70 | — |
| Tractor | C60 | — |
| Tractor | C50 | — |
| Loader | 721C | — |
| Loader | 621C | — |
| Tractor | 3230 | — |
| Tractor | 3220 | — |
| Tractor | 4230 | — |
| Tractor | 4210 | — |
| Tractor | 4240 | — |
| Engine | DT-466 | — |
| Loader | 721B | — |
| Loader | 621B | — |
| Loader | 921B | — |
| Loader | 821B | — |
| Loader | 921 | — |
| Tractor | 395 | — |
| Tractor | 495 | — |
| Tractor | 595 | — |
| Tractor | 695 | — |
| Tractor | 895 | — |
| Tractor | 995 | — |
| Dozer | 1550 | — |
| Cotton Picker | 1822 | — |
| Loader | 621 | — |
| Trencher | 560 | — |
| Combine | 1640 | — |
| Loader | 821 | — |
| Loader | 721 | — |
| Tractor | 380B | — |
| Combine | 1670 | — |
| Tractor | 248 | — |
| Tractor | 385 | — |
| Tractor | 485 | — |
| Tractor | 585 | — |
| Tractor | 685 | — |
| Tractor | 885 | — |
| Combine | 1660 | — |
| Engine | DT-466B | — |
| Engine | DT-436 | — |
| Engine | D-466 | — |
| Engine | D-436 | — |
| Loader | W30 | — |
| Tractor | AD4/47 | — |
| Tractor | 1026 | — |
| Excavator | 1187B | — |
| Tractor | 1394 | — |
| Tractor | 1594 | — |
| Tractor | 1494 | — |
| Engine | DTI-466 | — |
| Engine | DTI-466C | — |
| Engine | DTI-466B | — |
| Tractor | 258 | — |
| Tractor | 3688 | — |
| Tractor | 268 | — |
| Tractor | 785 | — |
| Tractor | 1194 | — |
| Tractor | 1294 | — |
| Excavator | 1187 | — |
| Tractor | 584 | — |
| Tractor | 884 | — |
| Combine | 1440 | — |
| Excavator | 40BLC | — |
| Excavator | 40EC | — |
| Excavator | 40YC | — |
| Tractor | 684 | — |
| Tractor | 1690 | — |
| Tractor | 1490 | — |
| Tractor | 885N | — |
| Excavator | 50 | — |
| Loader | W36 | — |
| Tractor | 1410 | — |
| Tractor | 1412 | — |
| Tractor | 990 | — |
| Excavator | 40 | — |
| Tractor | 278 | — |
| Tractor | 484 | — |
| Tractor | 784 | — |
| Tractor | HYDRO 84 | — |
| Engine | D-360 | — |
| Engine | DT-414 | — |
| Engine | D-414 | — |
| Excavator | 980B | — |
| Tractor | 1212 | — |
| Tractor | 686 | — |
| Tractor | 886 | — |
| Tractor | 996 | — |
| Engine | D-312 | — |
| Backhoe | 380CK | — |
| Tractor | 1210 | — |
| Tractor | 1086 | — |
| Tractor | 986 | — |
| Tractor | 1066 | — |
| Tractor | 766 | — |
| Combine | 815 | — |
| Tractor | 2500 | — |
| Tractor | 574 | — |
| Tractor | 674 | — |
| Tractor | HYDRO 86 | — |
| Tractor | HYDRO 70 | — |
| Tractor | HYDRO 100 | — |
| Tractor | 3400 | — |
| Tractor | 2400 | — |
| Tractor | 2544 | — |
| Tractor | 464 | — |
| Tractor | 454 | — |
| Tractor | 544 | — |
| Tractor | 664 | — |
| Tractor | 656 | — |
| Tractor | 666 | — |
| Tractor | 1200 | — |
| Tractor | 2656 | — |
| Tractor | 880B | — |
| Tractor | 880A | — |
| Tractor | 966 | — |
| Tractor | 2504 | — |
| Tractor | 504 | — |
| Tractor | 2606 | — |
| Tractor | 606 | — |
| Tractor | 460 | — |
| Tractor | 560 | — |
| Tractor | 660 | — |
| Tractor | 340 | — |
| Tractor | 350 | — |
| Tractor | 330 | — |
| Tractor | 450-SERIES | — |
| Tractor | 400-SERIES | — |
| Tractor | 300 | — |