Graco 287142 Piston Rod

The Graco 287142 Piston Rod is a durable OEM replacement rod with a Chromex finish for extended life and smooth pump performance. Ideal for maintaining consistent spray pressure and reducing downtime.

Part Number: 287142
Finish: Chromex wear-resistant coating
Fits: Graco HydraMax 300 & HydraMax 350
OEM quality and perfect fit

Retail Price: $942

You save: $263.76 (28.00%)

Our Price: $678.24

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Description

Product Overview

Compatible Machines

Graco HydraMax 300
Graco HydraMax 350

If your sprayer is not listed above, please check your parts manual or contact us to confirm fit.

The Graco 287142 Piston Rod is an OEM, Chromex-treated pump rod designed for long life and consistent sealing performance inside the sprayer’s fluid section. Its wear-resistant finish helps maintain tight packings, reduces downtime, and keeps your Graco sprayer running at peak productivity.

Quick Specs
Part Number	287142
Finish / Treatment	Chromex wear-resistant coating
Type	Pump piston rod (fluid section)
Category	OEM Graco replacement part
Main Compatibility	HydraMax 300 & HydraMax 350 (see list above)

Why Choose the Graco 287142 Piston Rod?

Chromex surface for improved wear and corrosion resistance.
OEM geometry for proper packing seal and smooth stroke.
Reliable performance reduces premature packing wear.
Direct replacement—no modifications required on listed machines.

Frequently Asked Questions

It is a direct fit for HydraMax 300 and HydraMax 350. If your model is not listed, share your exact model number and we’ll verify compatibility.

Chromex is a hard, wear-resistant treatment that improves durability and helps maintain packing seal over time—ideal for high-duty airless applications.

It’s good practice to inspect packings, seats, and the piston ball. Replacing worn packings during rod replacement helps restore pressure and spray quality.

Yes. This is an OEM replacement component engineered for proper fit and performance on the listed HydraMax models.

Check your parts manual for the piston rod part number or send us your sprayer’s full model (and serial) number. We’ll match it before you buy.