Bedford 20-1888 is H.E.R.O. 4-622C Diaphragm Assembly aftermarket replacement

H.E.R.O. 4-622C Diaphragm Assembly (Gas Models) — Aftermarket by Bedford Precision Parts

Keep your sprayer running at peak efficiency with the aftermarket Bedford Precision Parts replacement for the H.E.R.O. 4-622C Diaphragm Assembly. Built as a direct equivalent to the OEM component, this diaphragm assembly is specifically designed for H.E.R.O. gas-powered diaphragm sprayers. It restores pump performance, reduces downtime, and ensures consistent spraying pressure for professional-grade results on every job.

Where it fits & how it is used
The diaphragm is a critical component in gas-driven sprayers, working to convert the pump’s mechanical motion into the hydraulic pressure needed to deliver coatings evenly. This assembly is used in multiple H.E.R.O. gas sprayer models, making it essential for contractors applying latex, block fillers, elastomerics, primers, and protective coatings. By replacing a worn or damaged diaphragm, you eliminate pressure fluctuations, extend pump life, and maintain uniform spray quality across surfaces.

• Replaces: H.E.R.O. 4-622C OEM diaphragm assembly
• Bedford Part #: 20-1888
• Application: Gas-powered H.E.R.O. diaphragm paint sprayers
• Use: Restores pumping efficiency, reduces downtime, and prevents costly failures

Benefits of Bedford’s diaphragm assembly

• Manufactured to match OEM dimensions for accurate fit
• Durable construction to withstand high-pressure spraying demands
• Reliable aftermarket solution at a cost-effective price

Maintenance and installation tips

• Inspect diaphragm regularly for signs of cracking, stretching, or wear
• Replace as part of routine maintenance to prevent jobsite breakdowns
• Check surrounding components such as the pressure relief valve, intake valve, and fluid section seals during installation

Explore more parts for your sprayers
Find more than just diaphragm assemblies at eRepairCenter. We carry a complete inventory of Bedford aftermarket solutions including paint sprayer guns, speeflo parts, wagner paint sprayer parts, graco paint sprayer parts, binks sprayer repair parts, and graco airless sprayer parts. These parts are designed to keep your equipment performing reliably and efficiently on every project.

Note: This Bedford Precision Parts diaphragm assembly is an aftermarket replacement for the H.E.R.O. 4-622C OEM component. It’s the trusted choice for professionals who need dependable quality and long-lasting performance at an affordable price.