Welch Parts

Welch Vacuum Pump Parts & Repair Kits

Shop genuine OEM Welch vacuum pump parts, service kits, repair kits, diaphragms, and oils at Chemtech Scientific. We stock a complete range of authentic Welch replacement parts for CRVpro, DryFast, ChemStar, DuoSeal, and Self-Cleaning diaphragm vacuum pumps.

Popular Welch Parts & Kits:

Welch CRVpro Service Kits (S3077-99, S3078-99, S3079-99, etc.)
Welch DryFast & ChemStar Dry Diaphragms (609123 and more)
Welch ChemStar Major Repair Kits (1376K-10, etc.)
Welch Gold Vacuum Pump Oil and Premium Oils
Exhaust filters, inlet traps, vanes, seals, gaskets, and bearings

Why Buy Welch Parts from Chemtech Scientific?

Genuine OEM Parts — Direct from Welch (Gardner Denver) for perfect fit and maximum performance
Fast Shipping
Expert Support — Factory-trained technicians ready to help you choose the right kit or part
Competitive Prices — Save on Welch CRVpro repair kits, DryFast diaphragms, and maintenance parts
Full Repair Service — Not sure what you need? Send your pump in for professional rebuild, Request Vacuum Pump Repair

Whether you need a minor seal kit, a major overhaul kit, or individual components like vanes, O-rings, or diaphragms, we have the Welch vacuum pump parts you need to keep your system running at peak efficiency.

Browse our full selection of Welch CRVpro parts, Welch DryFast parts, Welch ChemStar parts, and more below. Can’t find the part you need? Contact our team at (484) 424-9415 or support@chemtechsci.com — we’ll help you identify the correct Welch OEM part number quickly.