Graco 288103 Piston Rod Repair Kit

The Graco 288103 Piston Rod Repair Kit is a genuine OEM replacement designed for heavy-duty airless sprayers. Built with a Chromex-treated rod for durability and smoother operation.

Part Number: 288103
Fits: TexSpray Mark X, TexSpray 7900 HD, GMAX II 7900 HD
Function: Connects the drive to the fluid section for even spray pressure
Material: Hardened Chromex steel
Type: OEM Graco replacement kit

Retail Price: $684

You save: $183.31 (26.80%)

Our Price: $500.69

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Description

Compatibility & Quick Specs

Compatible Machines

The Graco 288103 Piston Rod Repair Kit fits the following sprayers:

TexSpray Mark X (e.g., 16W908 Mark X TexSpray Standard)
TexSpray 7900 HD (e.g., 16W890 7900HD Standard; 258735 7900HD Complete)
GMAX II 7900HD

What This Part Does

The 288103 is an OEM piston rod repair kit for heavy-duty Graco airless sprayers. The piston rod links the drive to the fluid section, delivering consistent pressure and flow on each stroke. Using a genuine rod helps maintain pump efficiency, reduce wear on packings, and extend service life under high-output texture/paint applications.

Key Specifications

OEM Part #	288103
Part Type	Piston Rod Repair Kit (rod assembly for the pump’s fluid section)
Typical Series	TexSpray Mark X, TexSpray 7900 HD, GMAX II 7900HD
Construction	Chromex-treated rod (durable, wear-resistant surface for long life)
What’s Included	Factory piston rod assembly. Packings/seals are serviced separately unless noted by your pump kit.
Cross Reference	Aftermarket equivalents may exist (e.g., supplier cross-refs). Verify fit before use.

When Should You Replace the Piston Rod?

Visible scoring, pitting, or chrome wear on the rod surface
Frequent packing failures or persistent pressure fluctuations
High-hour units undergoing a complete fluid section overhaul

Installation Notes

Depressurize, disconnect power, and follow all safety procedures.
Disassemble the fluid section per the service manual; remove the worn rod.
Inspect/replace packings and seals if required; lubricate as specified.
Install the new 288103 rod; apply proper torque values.
Prime with compatible fluid, check for leaks, and verify smooth operation.

Frequently Asked Questions

It fits many TexSpray Mark X, TexSpray 7900 HD, and GMAX II 7900HD configurations. Always confirm your exact model/serial against the parts breakdown for your unit before ordering.

Inspect and typically replace packings, seals, and any worn check balls/seats. A clean, undamaged rod and fresh packings dramatically improve pump life and sealing.

Yes—this kit uses a Chromex (hardened, wear-resistant) rod surface commonly specified for high-duty Graco pumps to extend durability and reduce packing wear.

Locate the stamped model/serial on the frame or control box, then use the official parts manual for your sprayer. If unavailable, compare your pump’s fluid section assembly number to confirm.

It’s not recommended. A worn or scored rod will quickly damage new packings. Replace the rod if any defects are present to ensure proper sealing and longevity.