This is the ball guide for the graco Mark V and Mark IV pump/fluid sections. For the stainless steel inlet check ball please refer to P/N: 105445. For the ceramic inlet check ball, please refer to P/N: 17Y533. Please check your manual to verify parts, or contact us to confirm part numbers for your specific sprayer.
Part #: 17H841
Part #: 17H849
Part #: 108526
Part #: 287877