Bedford 57-3320 Piston Rod is Graco 243179 aftermarket replacement

Aftermarket Piston Rod for Graco 243179 — Fits 190ES, ST & ZipSpray 1900

Keep your sprayer running at peak performance with the Bedford 57-3320 piston rod. This rod is an AfterMarket by Bedford Precision Parts of the OEM product, built to OEM dimensions and finish to replace Graco part 243179 and restore smooth pump stroke, pressure stability, and seal life.

Where it fits & what it does

Designed as a Graco 243179 piston rod aftermarket solution, this component drives the pump packings and check assembly through each stroke. A worn rod can cause packing failure, pulsation, and loss of prime. Installing this Aftermarket Graco 243179 replacement helps return your unit to factory performance with minimal downtime.

Compatible machines

• Graco 190ES (all common stand/cart configurations)
• Graco ST series contractor sprayers referencing 243179
• Graco ZipSpray 1900 line (verify by parts list/diagram)

Always confirm compatibility using your model’s parts list or graco paint sprayer parts manual.

Pro service tips

• Replace packings and seals at the same time for a complete paint gun rebuild kit approach.
• Inspect piston/valve seats, balls, and glands; polish minor scoring or replace worn parts.
• If you’re troubleshooting a wagner paint sprayer motor not working scenario, follow OEM electrical checks—this rod applies to Graco models listed above.

Why Bedford

Bedford Precision Parts machines rods for accurate concentricity and surface hardness to reduce packing wear and extend pump life. Keep a gun repair kit graco on hand to finish the rebuild in one visit.

Order the piston rod today at eRepairCenter. If any keyword above didn’t fit your exact search, browse our full Bedford aftermarket catalog for the best match to your model.