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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