Bedford 57-3318 Piston Rod is Graco 243174 aftermarket replacement

Restore pump strength with the Bedford 57-3318 aftermarket piston rod

When a worn piston rod causes noise, poor prime, or wobble in the fluid section, the right replacement restores reliability. The **Bedford 57-3318 piston rod** is an engineered, precision-fit **AfterMarket by Bedford Precision Parts of the OEM product** designed to replace the Graco factory rod. It’s built to OEM dimensions for long life and smooth operation at a lower cost than many OEM options.

What this part does and where it’s used

The piston rod transfers motion from the drive to the piston assembly inside the pump. A damaged or bent rod leads to scoring, reduced seal life, and loss of pressure. Installing the **Graco 243174 piston rod aftermarket** replacement restores alignment and reduces wear on pistons and seals, helping the pump regain proper prime and pressure stability.

Compatible machines

• Graco FieldLazer / Turfliner line using part 243174
• Graco 295ST contractor sprayers
• Graco GMax/GMaxPro 390, 395 and 495 series (where 243174 is referenced)
• Other contractor-class and turf/line-striper pumps that cross-reference 243174

Why choose this aftermarket replacement

As an **Aftermarket Graco 243174 replacement**, this Bedford rod delivers the tolerances and strength needed for daily contractor use. It’s a smart spare for rental fleets, maintenance shops, and contractors who want durable, ready-to-install parts. Replace the rod at the first sign of piston scoring to protect seals and limit downtime.

Service tips

When replacing the piston rod, inspect the piston, packing, and bore for scoring. Pair the rod swap with a **spray gun seal kit** or seal refresh to ensure optimal sealing. If your shop also services Speeflo or mixed-brand equipment, note that similar items—like a **speeflo sprayer piston rod** or **speeflo intake valve replacement**—should be stocked alongside a **graco sprayer intake valve** for faster turnarounds.

Order the Bedford 57-3318 piston rod (Graco 243174 aftermarket) at eRepairCenter. If you need help confirming fit or want related parts, browse our catalog or contact support.