Circuit Breaker
Case Construction ·21 Fitments
| Machine | Model | Years |
|---|---|---|
| CASE CRUZ-AIR WHEELED EXCAVATOR | 1085C | 1984 – 1989 |
| CASE WHEEL LOADER (BEFORE S/N JEE0135500) | 521D | 2000 – 2002 |
| CASE WHEEL LOADER (S/N JEE0135501 & AFTER) - ENGINE SUPPLEMENT | 521D | 2000 – 2002 |
| CASE WHEEL LOADER - NA (S/N JEE0135501 & AFTER) | 521D | 2000 – 2002 |
| 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 WHEEL LOADER | 621C | 1999 – 2001 |
| CASE WHEEL LOADER (BEFORE S/N JEE0135500) | 621D | 2000 – 2002 |
| CASE WHEEL LOADER - NA (S/N JEE0135501 & AFTER) | 621D | 2002 – 2007 |
Enhance your heavy equipment’s reliability with the Case Construction Circuit Breaker #S243558. Designed for optimal performance, this durable circuit breaker ensures safety and efficiency in your machinery, making it an essential component for any construction project.
Compatible equipment
This part fits CASE CRUZ-AIR WHEELED EXCAVATOR, CASE WHEEL LOADER (BEFORE S/N JEE0135500), CASE WHEEL LOADER (S/N JEE0135501 & AFTER) - ENGINE SUPPLEMENT, CASE WHEEL LOADER - NA (S/N JEE0135501 & AFTER), 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 WHEEL LOADER, CASE WHEEL LOADER (S/N JEE0155000 & BEFORE), CASE WHEEL LOADER (S/N JEE0155001 & AFTER) including models 1085C, 521D, 621, 621B, 621C, 621D, 721, 721B, 721C, 721D, 821, 821B, 821C, 921, 921B, 921C.
Frequently asked questions
What is the part number?
The manufacturer part number is S243558.
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
- S243558
- Internal SKU
- IC:S243558
- 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 21 fitments
| Machine | Model | Years |
|---|---|---|
| CASE CRUZ-AIR WHEELED EXCAVATOR | 1085C | 1984 – 1989 |
| CASE WHEEL LOADER (BEFORE S/N JEE0135500) | 521D | 2000 – 2002 |
| CASE WHEEL LOADER (S/N JEE0135501 & AFTER) - ENGINE SUPPLEMENT | 521D | 2000 – 2002 |
| CASE WHEEL LOADER - NA (S/N JEE0135501 & AFTER) | 521D | 2000 – 2002 |
| 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 WHEEL LOADER | 621C | 1999 – 2001 |
| CASE WHEEL LOADER (BEFORE S/N JEE0135500) | 621D | 2000 – 2002 |
| CASE WHEEL LOADER - NA (S/N JEE0135501 & AFTER) | 621D | 2002 – 2007 |
| CASE WHEEL LOADER (NORTH AMERICA) | 721 | 1989 – 1992 |
| CASE WHEEL LOADER (NORTH AMERICA) | 721B | 1993 – 1998 |
| CASE WHEEL LOADER | 721C | 1999 – 2002 |
| CASE WHEEL LOADER (NORTH AMERICA) | 721D | 2003 – 2006 |
| CASE WHEEL LOADER (NORTH AMERICA) | 821 | 1990 – 1992 |
| CASE WHEEL LOADER (NORTH AMERICA) | 821B | 1996 – 1997 |
| CASE WHEEL LOADER (S/N JEE0155000 & BEFORE) | 821C | 2002 – 2006 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 821C | 2003 – 2007 |
| CASE WHEEL LOADER | 921 | 1992 – 1995 |
| CASE WHEEL LOADER (NORTH AMERICA) | 921B | 1997 – 1998 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 921C | 1999 – 2007 |