O-ring
Case Construction ·26 Fitments
| Machine | Model | Years |
|---|---|---|
| CASE TERRATRAC CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000C | 1959 – 1963 |
| BACKHOE | 26 | 1965 – 1975 |
| BACKHOE | 26B | 1965 – 1975 |
| BACKHOE | 26S | 1965 – 1975 |
| BACKHOE AND LOADER FOR 530CK TRACTORS | 32 | 1960 – 1967 |
| BACKHOE AND LOADER | 32S | 1960 – 1966 |
| BACKHOE FOR 310G AND 450 CRAWLER | 33 | 1966 – 1971 |
| BACKHOE FOR 580CK | 33 | 1960 – 1972 |
| BACKHOE FOR W SERIES RIGID LOADERS | 33 | 1966 – 1971 |
| LOADER | 33 | 1966 – 1971 |
Enhance the performance of your Case Construction equipment with the durable O-Ring #9800643. Designed for optimal sealing and reliability, this essential part ensures efficient operation, reducing downtime and maintenance costs in heavy-duty applications.
Compatible equipment
This part fits CASE TERRATRAC CRAWLER TRACTOR (S/N 7103001 & AFTER), BACKHOE, BACKHOE AND LOADER FOR 530CK TRACTORS, BACKHOE AND LOADER, BACKHOE FOR 310G AND 450 CRAWLER, BACKHOE FOR 580CK, BACKHOE FOR W SERIES RIGID LOADERS, LOADER, BACKHOE FOR CRAWLER MODELS 750 850 1150, BACKHOE FOR 680CK TRACTOR, BACKHOES FOR CRAWLER MODELS 750 850 1150, CASE LOADER BACKHOE ATTACHMENTS, LOADER AND BACKHOE FOR 580CK SERIES B, DROTT SERIES-B FELLER/BUNCHER CRAWLER EXCAVATOR, DROTT SERIES-A CRAWLER EXCAVATOR, DROTT SERIES-B CRAWLER EXCAVATOR, CASE CRAWLER TRACTOR (BEFORE S/N 7070351), CASE CRAWLER TRACTOR (UP TO S/N 7083999), CASE INDUSTRIAL CRAWLER TRACTOR (AFTER S/N 7084000), CASE WHEEL LOADER (NORTH AMERICA) including models 1000C, 26, 26B, 26S, 32, 32S, 33, 33S, 34, 35, 40BLC, 40EC, 40YC, 750, 800, 821.
Frequently asked questions
What is the part number?
The manufacturer part number is 9800643.
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.
- Manufacturer part number
- 9800643
- Internal SKU
- IC:9800643
- Brand
- CASE CONSTRUCTION
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 0.01 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 26 fitments
| Machine | Model | Years |
|---|---|---|
| CASE TERRATRAC CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000C | 1959 – 1963 |
| BACKHOE | 26 | 1965 – 1975 |
| BACKHOE | 26B | 1965 – 1975 |
| BACKHOE | 26S | 1965 – 1975 |
| BACKHOE AND LOADER FOR 530CK TRACTORS | 32 | 1960 – 1967 |
| BACKHOE AND LOADER | 32S | 1960 – 1966 |
| BACKHOE FOR 310G AND 450 CRAWLER | 33 | 1966 – 1971 |
| BACKHOE FOR 580CK | 33 | 1960 – 1972 |
| BACKHOE FOR W SERIES RIGID LOADERS | 33 | 1966 – 1971 |
| LOADER | 33 | 1966 – 1971 |
| BACKHOE | 33S | 1961 – 1971 |
| BACKHOE FOR CRAWLER MODELS 750 850 1150 | 33S | 1961 – 1971 |
| BACKHOE FOR 680CK TRACTOR | 34 | 1961 – 1971 |
| BACKHOE FOR W SERIES RIGID LOADERS | 34 | 1961 – 1971 |
| BACKHOES FOR CRAWLER MODELS 750 850 1150 | 34 | 1961 – 1971 |
| CASE LOADER BACKHOE ATTACHMENTS | 35 | 1973 – 1983 |
| LOADER AND BACKHOE FOR 580CK SERIES B | 35 | 1973 – 1983 |
| DROTT SERIES-B FELLER/BUNCHER CRAWLER EXCAVATOR | 40BLC | 1971 – 1984 |
| DROTT SERIES-A CRAWLER EXCAVATOR | 40EC | 1971 – 1979 |
| DROTT SERIES-B CRAWLER EXCAVATOR | 40EC | 1971 – 1984 |
| DROTT SERIES-A CRAWLER EXCAVATOR | 40YC | 1971 – 1979 |
| DROTT SERIES-B CRAWLER EXCAVATOR | 40YC | 1971 – 1984 |
| CASE CRAWLER TRACTOR (BEFORE S/N 7070351) | 750 | 1961 – 1967 |
| CASE CRAWLER TRACTOR (UP TO S/N 7083999) | 800 | 1957 – 1963 |
| CASE INDUSTRIAL CRAWLER TRACTOR (AFTER S/N 7084000) | 800 | 1961 – 1963 |
| CASE WHEEL LOADER (NORTH AMERICA) | 821 | 1990 – 1992 |