by | Jul 25, 2026
Replaces Cat 43921 CERAMIC PLUNGER fits 3531, 3535, 3537 Cat PumpsNote: 3 needed to service entire pump Replacement Plunger for3531, 3535, 3537 PumpsFits 43921 Plunger is made with ceramic and replaces the existing plunger on select 35F model CAT pumps. Fits on select...
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