Graco 249000 Piston Rod Repair Kit

Graco 249000 Piston Rod Repair Kit restores performance and prevents leaks in high-duty Graco sprayers. Designed for long life with a hardened Chromex rod.

Part Number: 249000
Type: OEM Piston Rod Repair Kit
Rod Finish: Chromex / Hardened Steel
Fits: GMax 7900, GH 200, LineLazer 200HS
Function: Replaces worn piston rod to restore pressure and reduce leaks

Retail Price: $629

You save: $168.57 (26.80%)

Our Price: $460.43

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Description

Product Overview & Specs

Compatible Machines

This Graco 249000 Piston Rod Repair Kit is an OEM repair kit used on select heavy-duty Graco pumps. Confirm your exact model generation before ordering.

GMax 7900 (early / first-generation variants)
GH 200 Convertible pump models
LineLazer 200HS (certain configurations)

What is the Graco 249000 Piston Rod Repair Kit?

The 249000 kit (often described as “KIT, REPAIR, ROD, PISTON”) replaces a worn or damaged piston rod in the fluid section. It typically includes a new Chromex/hardened piston rod and required hardware/seals to restore pump performance and reduce leaks.

Why & When You Need It

Excessive wear scoring on the rod or premature seal wear/leakage
Loss of pressure, pulsation, or reduced output volume
Corrosion from water-borne coatings or harsh jobsite conditions
Preventive maintenance during major pump service

Key Details & Specifications

Part Number	249000
Item Type	Piston Rod Repair Kit (OEM)
Rod Surface	Chromex / Hardened for wear & corrosion resistance
Typical Contents	Piston rod plus associated seals/hardware (varies by revision)
Use Case	Restores sealing, pressure stability, and pump longevity
Compatibility Notes	Verify model generation (e.g., GMax vs. GMax II) and serial range

Installation & Best Practices

Clean the fluid section thoroughly and inspect seats, balls, and packings.
Lubricate new seals with compatible pump armor or light machine oil.
Follow torque specs from the official Graco service manual; apply threadlocker only where specified.
After assembly, prime with water/solvent and pressure-test for leaks before spraying.

Frequently Asked Questions

Not typically. GMax II generations may use different piston rods/kits. Confirm using your exact model year and the official parts list before ordering.

Chromex/hardened surfaces improve wear and corrosion resistance, helping seals last longer and reducing scoring that can cause leaks or pressure loss.

Persistent fluid leaks, rod scoring, inconsistent pressure, or rapid packing wear are common signs the piston rod assembly needs replacement.

It’s good practice to inspect/replace packings, balls, and seats during rod service. If your kit doesn’t include them, add the correct packing or valve kits.

Match your model name, generation (e.g., GMax vs. GMax II), and serial range to the official Graco parts breakdown. Contact support if uncertain.