CAT Pump Replacement Ceramic Plunger
The CAT Pump 43311 is a replacement 16mm x 77mm ceramic plunger for CAT 51, 55, and 550 pumps. Genuine CAT replacement part, guaranteed to fit. Use to replace damaged, missing, worn, or malfunctioning ceramic plunger during maintenance or repairs.
- Exact replacement part, don’t have to worry about tweaks or adjustments
- OEM parts guarantee use of correct materials for increased longevity
- OEM parts come with manufacturer support
- Check with pump manual to ensure correct part number
WARNING: This product can expose you to chemicals including Lead, which is known to the State of Californiato cause cancer and birth defects or other reproductive harm (For more information go to www.p65warnings.ca.gov).








