Bedford 20-2393 Ball/Plunger Gun Kit is ASM 4427-G aftermarket replacement

AfterMarket by Bedford Precision Parts — ASM 4427-G Ball/Plunger Gun Kit

This listing is an AfterMarket by Bedford Precision Parts replacement designed for technicians who repair and maintain ASM series spray guns. Built to restore precise valve action and fluid control, this complete kit contains the diffuser, ball, plunger and service seals you need to get a gun back to spec.

Use this ASM 4427-G Ball Plunger Gun Kit when replacing worn fluid-section components on ASM handheld guns. The kit is offered as an Aftermarket ASM 4427-G replacement and is engineered for fast bench service and reliable field repairs. It includes the key wear parts that commonly cause drips, pressure loss, or erratic spray patterns.

Sold under the Bedford part reference as the Bedford 20-2393 ball plunger kit, this repair set fits popular ASM models — notably the ASM 300 400 spray gun repair kit family — and many guns that use the G-thread diffuser style. Technicians servicing collision shops, cabinet shops, and industrial finish lines will find it a practical, low-cost solution for routine maintenance.

Perfect for workshops that stock paint gun accessories and replacement components, the kit restores smooth valve action and consistent atomization. It also pairs well with common spray gun seal kit items when performing a full valve rebuild.

For parts counters and service vans that supply multi-brand repair, this assembly complements broader inventories of paint spray gun parts and helps reduce downtime. While designed for ASM guns, the components are compatible with other G-threaded diffuser assemblies — check your gun’s parts breakdown before ordering.

Need additional service components or cross-reference help? Visit erepaircenter.com for diagrams and related parts.