Bedford 57-4074 is Graco 16X439 Piston Rod aftermarket replacement

Graco 16X439 Piston Rod – For GMax II 7900 ProContractor & IronMan Sprayers

Keep your high-performance sprayer running smoothly with the Graco 16X439 piston rod, designed specifically for use with Graco GMax II 7900 ProContractor and IronMan series airless sprayers. This genuine replacement part, also known as Graco 16X‑439, ensures consistent pump pressure, reduced wear, and longer equipment life.

OEM Replacement for GMax II 7900 Models

This OEM piston rod is a direct-fit replacement for several models in the GMax II 7900 line, including:

• GMax II 7900 ProContractor (Model 16W885)
• GMax II 7900 IronMan (Model 16W887)
• GMax II 7900 Lo-Boy (Model 16W884)

Made from corrosion-resistant stainless steel and engineered to meet MaxLife performance standards, this part maintains optimal spray consistency under high-pressure applications. Whether you’re a painting contractor or industrial operator, it's a key component to minimize downtime and extend sprayer life.

Aftermarket Option: Bedford 57‑4074

Looking for a reliable alternative to the OEM part? The Bedford 57‑4074 is a high-quality, U.S.-made aftermarket Graco 16X439 rod designed for the same models. It offers excellent performance and durability at a lower cost.

Specs:

• Material: Stainless steel
• Weight: 1.483 lbs
• UPC: 663547040740
• Bedford SKU: 57‑4074
• Compatibility: Matches OEM Graco 16X439 in all specifications
• Application: Ideal for high-pressure airless paint sprayers

Why Replace the Piston Rod?

The piston rod is essential in maintaining hydraulic pressure inside the pump. Over time, even durable rods wear down due to friction and exposure to coating materials. Replacing with a high-pressure stainless steel piston rod like the 16X439 ensures smoother operation, less vibration, and reduced risk of sprayer failure.

Whether you're spraying thick coatings or operating in demanding industrial environments, this MaxLife piston rod maintains pump integrity and spraying consistency.

Compatibility Notes

This part replaces previous models listed under Graco’s 16X‑439 designation. Before purchasing, confirm your sprayer model (printed on the sprayer’s serial label or manual) to ensure compatibility.

Installation Tips

• Always depressurize the system before replacement
• Inspect the pump housing and cylinder before installing the new rod
• Use manufacturer-approved lubricants during installation
• Replace the rod seal kit if showing signs of wear

Included In Package

• One Graco 16X439 (or aftermarket 57‑4074) stainless steel piston rod