Back-up Ring
Case Construction ·127 Fitments
| Machine | Model | Years |
|---|---|---|
| Trencher | 660 | — |
| Tractor | CX90 | — |
| Tractor | CX80 | — |
| Tractor | CX70 | — |
| Tractor | CX60 | — |
| Tractor | CX50 | — |
| Tractor | CX100 | — |
| Tractor | C100 | — |
| Tractor | C90 | — |
| Tractor | C80 | — |
Enhance your heavy equipment’s performance with the Case Construction Back-Up Ring #378985R2. Designed for durability and precision, this essential part ensures optimal sealing and reliability, keeping your machinery running smoothly in demanding conditions. Perfect for maintenance and repairs.
Frequently asked questions
What is the part number?
The manufacturer part number is 378985R2.
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
- 378985R2
- Internal SKU
- IC:378985R2
- 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 127 fitments
| Machine | Model | Years |
|---|---|---|
| Trencher | 660 | — |
| Tractor | CX90 | — |
| Tractor | CX80 | — |
| Tractor | CX70 | — |
| Tractor | CX60 | — |
| Tractor | CX50 | — |
| Tractor | CX100 | — |
| Tractor | C100 | — |
| Tractor | C90 | — |
| Tractor | C80 | — |
| Tractor | C70 | — |
| Tractor | C60 | — |
| Tractor | C50 | — |
| Tractor | 3220 | — |
| Tractor | 3230 | — |
| Tractor | 4240 | — |
| Tractor | 4230 | — |
| Tractor | 4210 | — |
| Tractor | 395 | — |
| Tractor | 495 | — |
| Tractor | 595 | — |
| Tractor | 695 | — |
| Tractor | 995 | — |
| Tractor | 895 | — |
| Trencher | 560 | — |
| Combine | 1640 | — |
| Combine | 1620 | — |
| Combine | 1680 | — |
| Tractor | 380B | — |
| Combine | 1670 | — |
| Tractor | 248 | — |
| Tractor | 385 | — |
| Tractor | 485 | — |
| Tractor | 585 | — |
| Tractor | 685 | — |
| Tractor | 885 | — |
| Combine | 1660 | — |
| Tractor | 1026 | — |
| Tractor | 21026 | — |
| Tractor | 268 | — |
| Tractor | 258 | — |
| Tractor | 3088 | — |
| Tractor | 3688HC | — |
| Tractor | 3688 | — |
| Tractor | 3488 | — |
| Tractor | 3288 | — |
| Tractor | 785 | — |
| Tractor | 7488 | — |
| Tractor | 7288 | — |
| Tractor | 584 | — |
| Tractor | 884 | — |
| Tractor | 684 | — |
| Tractor | 6588 | — |
| Tractor | 6388 | — |
| Tractor | 6788 | — |
| Tractor | 856 | — |
| Tractor | 278 | — |
| Tractor | 3588 | — |
| Tractor | 3388 | — |
| Tractor | 3788 | — |
| Tractor | 4386 | — |
| Tractor | 4786 | — |
| Tractor | 4586 | — |
| Tractor | 484 | — |
| Tractor | 784 | — |
| Tractor | HYDRO 84 | — |
| Harvester | 500 | — |
| Tractor | 686 | — |
| Tractor | 786 | — |
| Tractor | 886 | — |
| Harvester | 400 | — |
| Tractor | 1086 | — |
| Tractor | 1586 | — |
| Tractor | 1486 | — |
| Tractor | 4186 | — |
| Tractor | 986 | — |
| Tractor | 1066 | — |
| Tractor | 1568 | — |
| Tractor | 1566 | — |
| Tractor | 766 | — |
| Tractor | HYDRO 186 | — |
| Tractor | 1466 | — |
| Tractor | 2500 | — |
| Tractor | 574 | — |
| Tractor | 674 | — |
| Tractor | HYDRO 86 | — |
| Tractor | HYDRO 70 | — |
| Tractor | 1468 | — |
| Tractor | 2856 | — |
| Tractor | 2806 | — |
| Tractor | 4366 | — |
| Tractor | 4568 | — |
| Tractor | 806 | — |
| Tractor | HYDRO 100 | — |
| Tractor | 1456 | — |
| Tractor | 21456 | — |
| Tractor | 474 | — |
| Tractor | 3400 | — |
| Tractor | 1256 | — |
| Tractor | 2400 | — |
| Tractor | 21256 | — |
| Tractor | 2544 | — |
| Tractor | 464 | — |
| Tractor | 454 | — |
| Tractor | 544 | — |
| Tractor | 656 | — |
| Tractor | 664 | — |
| Tractor | 4166 | — |
| Tractor | 666 | — |
| Tractor | 2656 | — |
| Tractor | 2826 | — |
| Tractor | 2756 | — |
| Tractor | 756 | — |
| Tractor | 826 | — |
| Tractor | 966 | — |
| Tractor | 4156 | — |
| Tractor | 1206 | — |
| Tractor | 21206 | — |
| Tractor | 2504 | — |
| Tractor | 4100 | — |
| Tractor | 504 | — |
| Tractor | 2706 | — |
| Tractor | 2606 | — |
| Tractor | 606 | — |
| Tractor | 706 | — |
| Tractor | 560 | — |
| Tractor | 660 | — |