Description
The Bedford 42-4139 is a compatible replacement for Graco parts 15J566 and 15J-566 — the ring; wear used in Graco spray equipment. A wear ring centers the piston in its cylinder and absorbs side-load rubbing, sacrificing itself so the piston and cylinder wall do not score. Compatible with Graco T2 2:1 Transfer Pump and T3 3:1 Transfer Pump.
Common reasons for replacement:
- Pressure loss from a piston running off-center
- Visible scoring or thinning of the ring at teardown
- Renewed during every piston service
- Piston contacting the cylinder wall as the ring wears through
Manufactured to OEM-equivalent dimensions for proper fit and performance.
