Reducer
Case Construction ·39 Fitments
| Machine | Model | Years |
|---|---|---|
| CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000) | 1150 | 1965 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7109000 TO 7110299) | 1150 | 1968 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER) | 1150 | 1969 – 1974 |
| CASE CRAWLER TRACTOR | 1150B | 1973 – 1984 |
| CASE CRAWLER TRACTOR | 1450 | 1973 – 1980 |
| CASE UNI-LOADER SKID STEER LOADER (AFTER S/N JAF0069386) | 1818 | 1991 – 1997 |
| CASE SKID KING WHEEL LOADER | 300C | 1968 – 1990 |
| CASE SKID KING WHEEL LOADER | 400C | 1972 – 1977 |
| TRENCHER SUPPLEMENT (NORTH AMERICAN HOMOLOGATION) | 560 | 1963 – 1993 |
| CASE SKID KING WHEEL LOADER | 600 | 1972 – 1976 |
Enhance your heavy equipment performance with the Case Construction Reducer #221-1086. Designed for durability and efficiency, this essential part ensures optimal power transfer and reliability, making it a must-have for your construction machinery. Upgrade your equipment today!
Compatible equipment
This part fits CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000), CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7109000 TO 7110299), CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER), CASE CRAWLER TRACTOR, CASE UNI-LOADER SKID STEER LOADER (AFTER S/N JAF0069386), CASE SKID KING WHEEL LOADER, TRENCHER SUPPLEMENT (NORTH AMERICAN HOMOLOGATION), CASE WHEEL LOADER (PRIOR TO S/N JAK0021701) (NORTH AMERICA), CASE WHEEL LOADER (S/N JAK0021701 & AFTER) (NORTH AMERICA), CASE WHEEL LOADER (NORTH AMERICA), CASE TRENCHER, CASE CONSTRUCTION KING LOADER BACKHOE, CASE CRAWLER TRACTOR (AFTER S/N 7070351), CASE CRAWLER TRACTOR (BEFORE S/N 7070351), CASE CRAWLER EXCAVATOR, CASE CRAWLER EXCAVATOR (S/N 6203751 & AFTER), CASE UNIT LOADER W/POD CAB (S/N 9119672 & AFTER) (NORTH AMERICA), CASE WHEEL LOADER, CASE UNIT LOADER W/POD CAB (S/N 9119672 & AFTER), CASE WHEEL LOADER (PRIOR TO S/N 17754000), CASE WHEEL LOADER (S/N 17754000 & AFTER), CASE FORKLIFT, CASE WHEEL LOADER (S/N 9811301 & AFTER) (NORTH AMERICA) including models 1150, 1150B, 1450, 1818, 300C, 400C, 560, 600, 621, 621B, 660, 680K, 721, 721B, 750, 780C, 800, 821, 821B, 825, 880, 980B, W14, W14B, W14C.
Frequently asked questions
What is the part number?
The manufacturer part number is 221-1086.
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
- 221-1086
- Internal SKU
- IC:221-1086
- Brand
- CASE CONSTRUCTION
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 0.03 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 39 fitments
| Machine | Model | Years |
|---|---|---|
| CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000) | 1150 | 1965 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7109000 TO 7110299) | 1150 | 1968 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER) | 1150 | 1969 – 1974 |
| CASE CRAWLER TRACTOR | 1150B | 1973 – 1984 |
| CASE CRAWLER TRACTOR | 1450 | 1973 – 1980 |
| CASE UNI-LOADER SKID STEER LOADER (AFTER S/N JAF0069386) | 1818 | 1991 – 1997 |
| CASE SKID KING WHEEL LOADER | 300C | 1968 – 1990 |
| CASE SKID KING WHEEL LOADER | 400C | 1972 – 1977 |
| TRENCHER SUPPLEMENT (NORTH AMERICAN HOMOLOGATION) | 560 | 1963 – 1993 |
| CASE SKID KING WHEEL LOADER | 600 | 1972 – 1976 |
| CASE WHEEL LOADER (PRIOR TO S/N JAK0021701) (NORTH AMERICA) | 621 | 1992 – 1993 |
| CASE WHEEL LOADER (S/N JAK0021701 & AFTER) (NORTH AMERICA) | 621 | 1992 – 1993 |
| CASE WHEEL LOADER (NORTH AMERICA) | 621B | 1993 – 1998 |
| CASE TRENCHER | 660 | 1986 – 2003 |
| CASE CONSTRUCTION KING LOADER BACKHOE | 680K | 1984 – 1988 |
| CASE WHEEL LOADER (NORTH AMERICA) | 721 | 1989 – 1992 |
| CASE WHEEL LOADER (NORTH AMERICA) | 721B | 1993 – 1998 |
| CASE CRAWLER TRACTOR (AFTER S/N 7070351) | 750 | 1963 – 1967 |
| CASE CRAWLER TRACTOR (BEFORE S/N 7070351) | 750 | 1961 – 1967 |
| CASE CONSTRUCTION KING LOADER BACKHOE | 780C | 1981 – 1988 |
| CASE SKID KING WHEEL LOADER | 800 | 1972 – 1976 |
| CASE WHEEL LOADER (NORTH AMERICA) | 821 | 1990 – 1992 |
| CASE WHEEL LOADER (NORTH AMERICA) | 821B | 1996 – 1997 |
| CASE SKID KING WHEEL LOADER | 825 | 1972 – 1976 |
| CASE CRAWLER EXCAVATOR | 880 | 1971 – 1980 |
| CASE CRAWLER EXCAVATOR (S/N 6203751 & AFTER) | 980B | 1976 – 1981 |
| CASE UNIT LOADER W/POD CAB (S/N 9119672 & AFTER) (NORTH AMERICA) | W14 | 1975 – 1986 |
| CASE WHEEL LOADER | W14B | 1985 – 1989 |
| CASE WHEEL LOADER | W14C | 1990 – 1993 |
| CASE UNIT LOADER W/POD CAB (S/N 9119672 & AFTER) | W14FL | 1975 – 1986 |
| CASE UNIT LOADER W/POD CAB (S/N 9119672 & AFTER) | W14H | 1980 – 1986 |
| CASE WHEEL LOADER | W18B | 1985 – 1988 |
| CASE WHEEL LOADER (NORTH AMERICA) | W20C | 1982 – 1989 |
| CASE WHEEL LOADER | W30 | 1982 – 1989 |
| CASE WHEEL LOADER (PRIOR TO S/N 17754000) | W36 | 1977 – 1989 |
| CASE WHEEL LOADER (S/N 17754000 & AFTER) | W36 | 1979 – 1983 |
| CASE FORKLIFT | W4 | 1978 – 1983 |
| CASE WHEEL LOADER | W4 | 1978 – 1983 |
| CASE WHEEL LOADER (S/N 9811301 & AFTER) (NORTH AMERICA) | W7E | 1970 – 1972 |