General Pump 53040009 Replacement - Ceramic Piston Set (15mm, 3-Pack)

Replacement ceramic piston set for General Pump and Interpump Series 53 (E1) pressure washer pumps. Contains 3 ceramic pistons for complete triplex pump rebuild. Direct replacement for General Pump/Interpump 53040009 (53.0400.09). Compatible with E1B, E1C, E1D, and E1E pump models. Ceramic piston dimensions: 15mm diameter x 38.5mm length. Cross-references: 53040009, 53.0400.09.