• Major Overhaul Kit – Pfeiffer Duo 2.5 – Part # PKE02008T $437.50

    This is the Pfeiffer Part# PKE02008T Major Overhaul Kit for the Duo 2.5 vacuum pump . This comprehensive kit includes everything you need for a full pump rebuild: GX vanes, seals, O-rings, springs, valves, shaft seal, coupling, sight glass, and more . Following Pfeiffer’s recommended 4-year maintenance schedule, this kit restores your pump to like-new condition.

  • Seal Kit – Pfeiffer Duo 2.5 $74.20

    This is the Pfeiffer Part# PKE00002T Seal Kit for the Duo 2.5 vacuum pump . This kit includes Viton O-rings, cork gaskets, a felt ring, and a shaft seal for basic maintenance . Designed for seamless compatibility with your Duo 2.5 pump, this seal kit provides a dependable solution for routine maintenance and helps restore sealing integrity .

  • Washer Coupling, CRS, Pfeiffer, DUO, Part# 420043 $12.95

    This Coupling Washer (Part# 420043) is a genuine OEM-quality replacement component made of CRS (Cold Rolled Steel), designed specifically for the Pfeiffer DUO 2.5 and DUO 2.5C dual-stage rotary vane vacuum pumps . It is a critical component of the coupling assembly, helping to ensure proper connection between the motor and the pump for efficient power transmission . This washer is included as a standard component in the Major Overhaul Kit for the DUO2.5C and in the Major Overhaul Kit for the DUO2.5 

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