Bedford 20-3120 Check Valve O-Ring Kit is Graco 256640 aftermarket replacement

Aftermarket Bedford Precision Parts — Graco 256640 Fusion CS Head Check Valve O-Ring Kit

This listing describes the Aftermarket Graco 256640 O-ring kit produced by Bedford Precision Parts as a direct, high-quality **AfterMarket** replacement for the OEM seal set. Sold as the Bedford 20-3120 check valve O-ring kit replacement, this kit contains the check valve O-rings and head seals needed to restore leak-free operation and consistent spray performance on Fusion CS style spray guns.

What it is and where it’s used

The kit services the Fusion CS fluid section — specifically the head and check valve area — preventing backflow and maintaining correct fluid pressure and atomization. It’s a must-have when troubleshooting leaks, poor transfer efficiency, or inconsistent spray patterns during finishing work. If you’re doing a graco paint sprayer repair, replacing these O-rings is one of the fastest ways to return a Fusion CS gun to reliable service.

Compatible machines & common applications

• Graco Fusion CS spray guns (Fusion CS series heads and check valves)
• Fusion CS systems used in automotive, industrial, and coatings applications
• Workshops and contractors performing routine maintenance and rebuilds

Why choose this Bedford aftermarket kit?

• Manufactured to OEM dimensions for correct sealing and long life.
• Cost-effective alternative for service centers and contractor fleets.
• Quick to install — minimizes downtime during shop repairs.

Installation & helpful tips

Clean the fluid passages before fitting new seals, and inspect the check valve ball and seat for wear. Use the correct lubricants and a gentle installation technique to avoid nicking the new O-rings. When doing a head service, it’s smart to replace related items — consider adding a spray gun seal kit for a full refresh.

While this kit targets Graco Fusion CS heads, technicians who also service other brands may appreciate cross-references and complementary parts such as graco contractor spray gun parts or titan hvlp gun parts. For diagrams, fitment help, and additional compatible parts, visit erepaircenter.com — your hub for aftermarket replacements.

Note: This is an AfterMarket product manufactured by Bedford Precision Parts to replace Graco part number 256640. Always verify compatibility with your gun model before ordering.