CASE CONSTRUCTION
OEM
Part No. R21741
Shim
Case Construction ·172 Fitments
Ships fastFrom our warehouse
30-day returnsNo restocking fees
OEM guaranteedDirect from manufacturer
| Machine | Model | Years |
|---|---|---|
| CASE TERRATRAC CRAWLER TRACTOR (S/N 7010001 TO 7100001) | 1000 | 1961 – 1962 |
| CASE TERRATRAC CRAWLER TRACTOR (S/N 7010001 TO 7100001) | 1000 | 1961 – 1962 |
| CASE TERRATRAC CRAWLER TRACTOR (S/N 7010001 TO 7100001) | 1000 | 1961 – 1962 |
| CASE TERRATRAC CRAWLER TRACTOR (S/N 7010001 TO 7100001) | 1000 | 1961 – 1962 |
| CASE CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000D | 1960 – 1966 |
| CASE CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000D | 1960 – 1966 |
| CASE CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000D | 1960 – 1966 |
| CASE CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000D | 1960 – 1966 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000) | 1150 | 1965 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000) | 1150 | 1965 – 1974 |
Enhance your heavy equipment’s performance with the Case Construction Shim #R21741. Designed for durability and precision, this essential part ensures optimal alignment and stability, making it perfect for maintaining your machinery’s efficiency on any job site.
Compatible equipment
This part fits CASE TERRATRAC CRAWLER TRACTOR (S/N 7010001 TO 7100001), CASE CRAWLER TRACTOR (S/N 7103001 & AFTER), 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 CRAWLER TRACTOR (PRIOR TO S/N 3038436), CASE CRAWLER TRACTOR (S/N 3038436 TO 3060306), CASE CRAWLER TRACTOR (S/N 3060306 & AFTER), 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), IND - CASE CRAWLER TRACTOR, CASE CRAWLER TRACTOR (BEFORE S/N 7070351), CASE CRAWLER TRACTOR (UP TO S/N 7083999), CASE INDUSTRIAL CRAWLER TRACTOR (AFTER S/N 7084000), 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 1000, 1000D, 1150, 1450, 1450B, 1455B, 450, 450B, 450C, 455B, 455C, 475, 550, 550E, 550G, 550H, 650, 650G, 650H, 750, 750H, 800, 850, 850C, 850D.
Frequently asked questions
What is the part number?
The manufacturer part number is R21741.
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
- R21741
- Internal SKU
- IC:R21741
- Brand
- CASE CONSTRUCTION
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 0.1 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 172 fitments
| Machine | Model | Years |
|---|---|---|
| CASE TERRATRAC CRAWLER TRACTOR (S/N 7010001 TO 7100001) | 1000 | 1961 – 1962 |
| CASE TERRATRAC CRAWLER TRACTOR (S/N 7010001 TO 7100001) | 1000 | 1961 – 1962 |
| CASE TERRATRAC CRAWLER TRACTOR (S/N 7010001 TO 7100001) | 1000 | 1961 – 1962 |
| CASE TERRATRAC CRAWLER TRACTOR (S/N 7010001 TO 7100001) | 1000 | 1961 – 1962 |
| CASE CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000D | 1960 – 1966 |
| CASE CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000D | 1960 – 1966 |
| CASE CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000D | 1960 – 1966 |
| CASE CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000D | 1960 – 1966 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000) | 1150 | 1965 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000) | 1150 | 1965 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000) | 1150 | 1965 – 1974 |
| 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 7109000 TO 7110299) | 1150 | 1968 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7109000 TO 7110299) | 1150 | 1968 – 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 TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER) | 1150 | 1969 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER) | 1150 | 1969 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER) | 1150 | 1969 – 1974 |
| CASE CRAWLER TRACTOR | 1450 | 1973 – 1980 |
| CASE CRAWLER TRACTOR | 1450 | 1973 – 1980 |
| CASE CRAWLER TRACTOR | 1450 | 1973 – 1980 |
| CASE CRAWLER TRACTOR | 1450 | 1973 – 1980 |
| CASE CRAWLER TRACTOR | 1450 | 1973 – 1980 |
| CASE CRAWLER TRACTOR | 1450B | 1980 – 1987 |
| CASE CRAWLER TRACTOR | 1450B | 1980 – 1987 |
| CASE CRAWLER TRACTOR | 1450B | 1980 – 1987 |
| CASE CRAWLER TRACTOR | 1450B | 1980 – 1987 |
| CASE CRAWLER TRACTOR | 1450B | 1980 – 1987 |
| CASE CRAWLER TRACTOR | 1455B | 1980 – 1987 |
| CASE CRAWLER TRACTOR | 1455B | 1980 – 1987 |
| CASE CRAWLER TRACTOR | 1455B | 1980 – 1987 |
| CASE CRAWLER TRACTOR | 1455B | 1980 – 1987 |
| CASE CRAWLER TRACTOR | 1455B | 1980 – 1987 |
| CASE CRAWLER TRACTOR (PRIOR TO S/N 3038436) | 450 | 1965 – 1980 |
| CASE CRAWLER TRACTOR (PRIOR TO S/N 3038436) | 450 | 1965 – 1980 |
| CASE CRAWLER TRACTOR (PRIOR TO S/N 3038436) | 450 | 1965 – 1980 |
| 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 3038436 TO 3060306) | 450 | 1968 – 1980 |
| CASE CRAWLER TRACTOR (S/N 3038436 TO 3060306) | 450 | 1968 – 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 (S/N 3060306 & AFTER) | 450 | 1975 – 1980 |
| CASE CRAWLER TRACTOR (S/N 3060306 & AFTER) | 450 | 1975 – 1980 |
| CASE CRAWLER TRACTOR (S/N 3060306 & AFTER) | 450 | 1975 – 1980 |
| CASE CRAWLER TRACTOR | 450B | 1978 – 1983 |
| CASE CRAWLER TRACTOR | 450B | 1978 – 1983 |
| CASE CRAWLER TRACTOR | 450B | 1978 – 1983 |
| CASE CRAWLER TRACTOR | 450B | 1978 – 1983 |
| CASE CRAWLER TRACTOR | 450B | 1978 – 1983 |
| CASE LONG TRACK CRAWLER TRACTOR | 450C | 1983 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 450C | 1983 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 450C | 1983 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 450C | 1983 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 450C | 1983 – 1994 |
| CASE CRAWLER TRACTOR | 455B | 1983 |
| CASE CRAWLER TRACTOR | 455B | 1983 |
| CASE CRAWLER TRACTOR | 455B | 1983 |
| CASE CRAWLER TRACTOR | 455B | 1983 |
| CASE LONG TRACK CRAWLER TRACTOR | 455C | 1983 – 1990 |
| CASE LONG TRACK CRAWLER TRACTOR | 455C | 1983 – 1990 |
| CASE LONG TRACK CRAWLER TRACTOR | 455C | 1983 – 1990 |
| CASE LONG TRACK CRAWLER TRACTOR | 455C | 1983 – 1990 |
| 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/301B ENGINE (PRIOR TO S/N 3058169) | 475 | 1972 – 1983 |
| CASE CABLE LAYER W/301B ENGINE (PRIOR TO S/N 3058169) | 475 | 1972 – 1983 |
| 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 CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER) | 475 | 1972 – 1983 |
| CASE CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER) | 475 | 1972 – 1983 |
| CASE CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER) | 475 | 1972 – 1983 |
| CASE LONG TRACK CRAWLER TRACTOR | 550 | 1989 – 1991 |
| CASE LONG TRACK CRAWLER TRACTOR | 550 | 1989 – 1991 |
| CASE LONG TRACK CRAWLER TRACTOR | 550 | 1989 – 1991 |
| CASE LONG TRACK CRAWLER TRACTOR | 550 | 1989 – 1991 |
| CASE LONG TRACK CRAWLER TRACTOR | 550E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 550E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 550E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 550E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 550G | 1995 – 1998 |
| CASE LONG TRACK CRAWLER TRACTOR | 550G | 1995 – 1998 |
| CASE LONG TRACK CRAWLER TRACTOR | 550G | 1995 – 1998 |
| CASE CRAWLER TRACTOR | 550H | 1999 – 2008 |
| CASE CRAWLER TRACTOR | 550H | 1999 – 2008 |
| CASE CRAWLER TRACTOR | 550H | 1999 – 2008 |
| CASE CRAWLER TRACTOR | 550H | 1999 – 2008 |
| IND - CASE CRAWLER TRACTOR | 550H | 1999 – 2008 |
| IND - CASE CRAWLER TRACTOR | 550H | 1999 – 2008 |
| IND - CASE CRAWLER TRACTOR | 550H | 1999 – 2008 |
| IND - CASE CRAWLER TRACTOR | 550H | 1999 – 2008 |
| CASE CRAWLER TRACTOR | 650 | 1990 – 1991 |
| CASE CRAWLER TRACTOR | 650 | 1990 – 1991 |
| CASE CRAWLER TRACTOR | 650 | 1990 – 1991 |
| CASE CRAWLER TRACTOR | 650 | 1990 – 1991 |
| CASE CRAWLER TRACTOR | 650G | 1994 – 1999 |
| CASE CRAWLER TRACTOR | 650G | 1994 – 1999 |
| CASE CRAWLER TRACTOR | 650G | 1994 – 1999 |
| CASE CRAWLER TRACTOR | 650G | 1994 – 1999 |
| CASE CRAWLER TRACTOR | 650H | 2000 – 2002 |
| CASE CRAWLER TRACTOR | 650H | 2000 – 2002 |
| CASE CRAWLER TRACTOR | 650H | 2000 – 2002 |
| CASE CRAWLER TRACTOR | 650H | 2000 – 2002 |
| CASE CRAWLER TRACTOR (BEFORE S/N 7070351) | 750 | 1961 – 1967 |
| CASE CRAWLER TRACTOR (BEFORE S/N 7070351) | 750 | 1961 – 1967 |
| CASE CRAWLER TRACTOR (BEFORE S/N 7070351) | 750 | 1961 – 1967 |
| CASE CRAWLER TRACTOR (BEFORE S/N 7070351) | 750 | 1961 – 1967 |
| CASE CRAWLER TRACTOR (BEFORE S/N 7070351) | 750 | 1961 – 1967 |
| CASE CRAWLER TRACTOR | 750H | 2000 – 2002 |
| CASE CRAWLER TRACTOR | 750H | 2000 – 2002 |
| CASE CRAWLER TRACTOR | 750H | 2000 – 2002 |
| CASE CRAWLER TRACTOR | 750H | 2000 – 2002 |
| CASE CRAWLER TRACTOR (UP TO S/N 7083999) | 800 | 1957 – 1963 |
| CASE CRAWLER TRACTOR (UP TO S/N 7083999) | 800 | 1957 – 1963 |
| CASE CRAWLER TRACTOR (UP TO S/N 7083999) | 800 | 1957 – 1963 |
| CASE CRAWLER TRACTOR (UP TO S/N 7083999) | 800 | 1957 – 1963 |
| CASE CRAWLER TRACTOR (UP TO S/N 7083999) | 800 | 1957 – 1963 |
| CASE INDUSTRIAL CRAWLER TRACTOR (AFTER S/N 7084000) | 800 | 1961 – 1963 |
| CASE INDUSTRIAL CRAWLER TRACTOR (AFTER S/N 7084000) | 800 | 1961 – 1963 |
| CASE INDUSTRIAL CRAWLER TRACTOR (AFTER S/N 7084000) | 800 | 1961 – 1963 |
| CASE INDUSTRIAL CRAWLER TRACTOR (AFTER S/N 7084000) | 800 | 1961 – 1963 |
| CASE INDUSTRIAL CRAWLER TRACTOR (AFTER S/N 7084000) | 800 | 1961 – 1963 |
| CASE CRAWLER TRACTOR (EUROPE) | 850 | 1967 – 1977 |
| CASE CRAWLER TRACTOR (EUROPE) | 850 | 1967 – 1977 |
| CASE CRAWLER TRACTOR (EUROPE) | 850 | 1967 – 1977 |
| CASE CRAWLER TRACTOR (EUROPE) | 850 | 1967 – 1977 |
| CASE CRAWLER TRACTOR (S/N 7073469 & AFTER) (NORTH AMERICA) | 850 | 1969 – 1977 |
| CASE CRAWLER TRACTOR (S/N 7073469 & AFTER) (NORTH AMERICA) | 850 | 1969 – 1977 |
| CASE CRAWLER TRACTOR (S/N 7073469 & AFTER) (NORTH AMERICA) | 850 | 1969 – 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 |
| CASE CRAWLER TRACTOR (UP TO S/N 7073468) (NORTH AMERICA) | 850 | 1967 – 1977 |
| CASE CRAWLER TRACTOR (UP TO S/N 7073468) (NORTH AMERICA) | 850 | 1967 – 1977 |
| CASE CRAWLER TRACTOR (UP TO S/N 7073468) (NORTH AMERICA) | 850 | 1967 – 1977 |
| CASE CRAWLER TRACTOR | 850C | 1981 – 1984 |
| CASE CRAWLER TRACTOR | 850C | 1981 – 1984 |
| CASE CRAWLER TRACTOR | 850C | 1981 – 1984 |
| CASE CRAWLER TRACTOR | 850C | 1981 – 1984 |
| CASE CRAWLER TRACTOR | 850C | 1981 – 1984 |
| CASE LONG TRACK CRAWLER TRACTOR | 850D | 1985 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 850D | 1985 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 850D | 1985 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 850D | 1985 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 850D | 1985 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 850E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 850E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 850E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 850E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 850E | 1992 – 1994 |
| CASE CRAWLER TRACTOR | 850G | 1994 – 1999 |
| CASE CRAWLER TRACTOR | 850G | 1994 – 1999 |
| CASE CRAWLER TRACTOR | 850G | 1994 – 1999 |
| CASE CRAWLER TRACTOR | 850G | 1994 – 1999 |
| CASE CRAWLER TRACTOR | 850G | 1994 – 1999 |
| CASE CRAWLER TRACTOR | 850H | 2000 – 2002 |
| CASE CRAWLER TRACTOR | 850H | 2000 – 2002 |
| CASE CRAWLER TRACTOR | 850H | 2000 – 2002 |
| CASE CRAWLER TRACTOR | 855C | 1984 |
| CASE CRAWLER TRACTOR | 855C | 1984 |
| CASE CRAWLER TRACTOR | 855C | 1984 |
| CASE CRAWLER TRACTOR | 855C | 1984 |
| CASE LONG TRACK CRAWLER TRACTOR | 855D | 1985 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 855D | 1985 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 855D | 1985 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 855D | 1985 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 855E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 855E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 855E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 855E | 1992 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 855E | 1992 – 1994 |