Caterpillar Hydraulic Cylinder Seal Kit 123-2043 is a seals & filters product that supports fluid sealing, contamination control and system protection. It is listed for Caterpillar heavy-equipment applications; use part number 123-2043 as the primary identification reference.
- Part Number: 123-2043
- Brand: Caterpillar
- Product Category: Seals & Filters
- Equipment Type: Excavator
- Compatible Models: M325B, 320B S, 320B N, 320B L, 322B L, 325B LN, 320B LU, 322B LN, 325B, 325B L, 320B, 320B LL, 320B FM LL, 322B, 320B U, 321B
- Engine Models: Confirm by equipment serial number
- Condition: New
Fitment can vary by machine configuration and serial-number range. Compare the original part number, dimensions, connectors and mounting points before purchase.





