10 in stock
This Shaft Seal (Part #4083174) is a replacement part made for two popular Pfeiffer pump models: the UNO 1.5A and the DUO 1.5A . Its main job is to seal the rotating shaft where it enters the pump body. This stops oil from leaking out and keeps air from getting in. If you are rebuilding your small Pfeiffer pump or fixing a leak, this is the part you need. It is also known by the cross-reference number SV0004 and is included in the official repair kit for these pumps .
10 in stock
10 in stock
This Cylinder Sieve (Part #560014) is a fundamental filtration component for your Pfeiffer DUO vacuum pump . Its job is to trap debris and contaminants. This keeps your pump clean and running efficiently. A clean pump means better vacuum pressure and a longer pump life. This sieve is designed for the Pfeiffer DUO 250A, DUO 255M (Index C), DUO 120A, and DUO 125 pump models . If you are rebuilding your pump, this is a part you will need. In fact, it is included in major overhaul kits for these pumps
This Sight Glass Assembly (Part #500015PP) is a replacement part that fits multiple popular vacuum pumps. It works on Pfeiffer DUO 2.5 and DUO 2.5C models. It also works on Busch R5 RD0300A and RD0360A pumps. The clear glass lets you see the oil level inside your pump at a quick glance. No more guessing if the oil is low or too high. Just look, and you will know.
10 in stock
10 in stock
10 in stock
10 in stock
This Steel Sleeve (Part #250030) is a genuine replacement part made for Pfeiffer DUO 120A and DUO 125 vacuum pumps. It is a durable, precision-engineered component made from high-quality steel. This sleeve is a critical internal part that helps your pump run smoothly and efficiently. If you are rebuilding your pump or replacing worn parts, this is the correct sleeve for the job
10 in stock
This Socket Head Cap Screw (Part #400057) is a hardware component for your Pfeiffer DUO vacuum pump . It is used to secure various parts of the pump together. A good quality screw ensures a tight, stable fit. This helps your pump run smoothly and safely. This screw is designed specifically for the Pfeiffer DUO 10 and DUO 10C pump models . If you are missing a screw or replacing a damaged one, this is the correct part.
This Spacer (Part #440050) is an essential component for your Pfeiffer DUO vacuum pump . Its job is to maintain a specific distance or gap between different parts inside the pump . It also helps keep everything perfectly aligned. The right spacing and alignment are critical for smooth, efficient operation . This spacer is designed specifically for the Pfeiffer DUO 120A and DUO 125 pump models . If you are rebuilding your pump or replacing worn internal parts, you may need this spacer.
This Spacer (Part #440056) is an essential component for your Pfeiffer DUO 255M vacuum pump . Its job is to maintain proper spacing between different parts inside the pump. It also helps keep everything perfectly aligned. The right spacing and alignment are critical for smooth, efficient operation. This spacer is designed specifically for the Pfeiffer DUO 255M (Index C) pump model . If you are rebuilding your pump or replacing worn internal parts, you may need this spacer.
10 in stock
10 in stock
This Rotex 55 spider coupling (Part # 0512000116) is a elastomeric insert designed for KTR Rotex Size 55 jaw couplings . Made from high-strength T-PUR material with 92 Shore A hardness, this orange spider sits between the coupling hubs to transmit torque, dampen vibrations, and compensate for minor shaft misalignments . It is ideal for use with vacuum pumps driven by electric motors where reliable, low-maintenance power transmission is required.
10 in stock
This 40 mm long spring (Part #490074) is a replacement part made specifically for the Pfeiffer DUO 125 vacuum pump . Inside your pump, this small but important spring provides the right tension to keep other components working together smoothly . If you are rebuilding your DUO 125 pump or fixing a performance issue, this is the correct spring
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