Graco 288483 Pump Cylinder Repair Kit

The Graco 288483 Pump Cylinder Repair Kit is an OEM solution designed to restore pressure and sealing performance in GH 230 and GH 300 sprayers. Perfect for maintenance and extending pump life.

Fits: GH 230, GH 300
OEM Part #: 288483
Type: Pump Cylinder Repair Kit
Function: Restores cylinder and seal performance
Use: Rebuild pump lower to stop leaks and pressure loss

Retail Price: $602

You save: $161.34 (26.80%)

Our Price: $440.66

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Description

Graco 288483 – Pump Cylinder Repair Kit (Detailed Fit & Specs)

Compatible Machines

Graco GH 230 (Units using the GH230 pump lower)
Graco GH 300 (Units using the GH300 pump lower)

Overview

The Graco 288483 Pump Cylinder Repair Kit restores sealing integrity and operating efficiency in specific GH 230 and GH 300 pump lowers. Use this OEM kit to address wear-related pressure loss, leakage, and pulsation without replacing the complete pump assembly.

Quick Specs

Attribute	Detail
Part Number	288483
Category	Pump Cylinder Repair Kit (OEM)
Intended Use	Refurbish the cylinder/fluid section on compatible GH 230 / GH 300 pump lowers
Typical Contents	Cylinder-section service components & seals needed to recondition the pump lower (OEM content/configuration)
Fitment Notes	Confirm your machine’s pump lower model (GH230/GH300) and revision against your service manual before purchase

When to Use This Kit

Noticeable pressure drop or difficulty maintaining set pressure
Leaking from the pump lower / worn seals and packings
Excessive pulsation, chatter, or uneven spray pattern
Preventive maintenance after heavy use with abrasive coatings

Installation Notes

Depressurize, flush, and disconnect power/fuel per Graco safety procedures.
Disassemble the pump lower and remove worn cylinder-section parts.
Clean mating surfaces; inspect for scoring or corrosion.
Install OEM components from 288483; lubricate as specified.
Reassemble, prime, and test for leaks and stable pressure.

Compatibility Caution

This kit is specified for GH 230 and GH 300 pump lowers. It is not a universal kit for other series. If your model differs, check the pump lower bill of materials (BOM) and select the matching OEM kit.

Frequently Asked Questions

It fits Graco GH 230 and Graco GH 300 units that use the GH230/GH300 pump lower. Verify your exact pump lower and revision in the service manual before ordering.

Pressure loss, leaks at the pump lower, increased pulsation, or inconsistent spray pattern typically indicate worn cylinder-section components and seals.

No. It is a Pump Cylinder Repair Kit for the cylinder/fluid section. Other sections (e.g., drive/valves) may require separate parts as specified in the service manual.

Yes, experienced users can install it with standard tools by following Graco procedures. If you lack experience, consult a qualified technician to ensure proper assembly, lubrication, and testing.

Match your machine’s model and the pump lower (GH230/GH300), check the pump BOM and revision, and verify with the official Graco service manual or an authorized dealer.