This A400 White Ink Pump (4-Pole) is a high-quality replacement part for A400 series CIJ inkjet printers. It delivers stable and consistent white ink supply, ensuring smooth ink flow and reliable printing performance. Made of corrosion-resistant and wear-resistant materials, it features strong power, low noise, good sealing and long service life. The 4-pole design provides more stable operation and better compatibility. Precision engineered for perfect fit and easy installation, it effectively reduces clogging and downtime, supporting efficient industrial coding and marking production.