Gasket
| Machine | Model | Years / S/N |
|---|---|---|
| CASE CRAWLER TRACTOR (PRIOR TO S/N 3038436) | 450 | 1965 – 1980 |
| CASE CRAWLER TRACTOR (S/N 3038436 TO 3060306) | 450 | 1968 – 1980 |
| CASE CRAWLER TRACTOR (S/N 3060306 & AFTER) | 450 | 1975 – 1980 |
| CASE CRAWLER TRACTOR | 450B | 1978 – 1983 |
| CASE LONG TRACK CRAWLER TRACTOR | 450C | 1983 – 1994 |
| CASE CRAWLER TRACTOR | 455B | 1983 |
| CASE LONG TRACK CRAWLER TRACTOR | 455C | 1983 – 1990 |
| CASE CABLE LAYER W/301B ENGINE (PRIOR TO S/N 3058169) | 475 | 1972 – 1983 |
| CASE CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER) | 475 | 1972 – 1983 |
| CASE CRAWLER TRACTOR (AFTER S/N 7070351) | 750 | 1963 – 1967 |
Enhance the performance of your Case Construction equipment with Gasket #A50139. Designed for durability and precision, this essential part ensures a reliable seal, preventing leaks and optimizing efficiency in heavy-duty applications. Trust Case for quality and reliability.
Compatible equipment
This part fits CASE CRAWLER TRACTOR (PRIOR TO S/N 3038436), CASE CRAWLER TRACTOR (S/N 3038436 TO 3060306), CASE CRAWLER TRACTOR (S/N 3060306 & AFTER), CASE CRAWLER TRACTOR, CASE LONG TRACK CRAWLER TRACTOR, CASE CABLE LAYER W/301B ENGINE (PRIOR TO S/N 3058169), CASE CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER), CASE CRAWLER TRACTOR (AFTER S/N 7070351), CASE CRAWLER TRACTOR (EUROPE), CASE CRAWLER TRACTOR (S/N 7073469 & AFTER) (NORTH AMERICA), CASE CRAWLER TRACTOR (UP TO S/N 7073468) (NORTH AMERICA) including models 450, 450B, 450C, 455B, 455C, 475, 750, 850.
Frequently asked questions
What is the part number?
The manufacturer part number is A50139.
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.
WARNING:For California residents — Cancer and Reproductive Harm. www.P65Warnings.ca.gov
- Manufacturer part number
- A50139
- Brand
- Case Construction
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 0.1 lb
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.
All 13 fitments
| Machine | Model | Years / S/N |
|---|---|---|
| CASE CRAWLER TRACTOR (PRIOR TO S/N 3038436) | 450 | 1965 – 1980 |
| CASE CRAWLER TRACTOR (S/N 3038436 TO 3060306) | 450 | 1968 – 1980 |
| CASE CRAWLER TRACTOR (S/N 3060306 & AFTER) | 450 | 1975 – 1980 |
| CASE CRAWLER TRACTOR | 450B | 1978 – 1983 |
| CASE LONG TRACK CRAWLER TRACTOR | 450C | 1983 – 1994 |
| CASE CRAWLER TRACTOR | 455B | 1983 |
| CASE LONG TRACK CRAWLER TRACTOR | 455C | 1983 – 1990 |
| CASE CABLE LAYER W/301B ENGINE (PRIOR TO S/N 3058169) | 475 | 1972 – 1983 |
| CASE CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER) | 475 | 1972 – 1983 |
| CASE CRAWLER TRACTOR (AFTER S/N 7070351) | 750 | 1963 – 1967 |
| CASE CRAWLER TRACTOR (EUROPE) | 850 | 1967 – 1977 |
| CASE CRAWLER TRACTOR (S/N 7073469 & AFTER) (NORTH AMERICA) | 850 | 1969 – 1977 |
| CASE CRAWLER TRACTOR (UP TO S/N 7073468) (NORTH AMERICA) | 850 | 1967 – 1977 |