GPC compressor rebuild kit restores the core wear components in your rocking piston compressor so you can bring performance back to spec with minimal downtime.

Rocking piston compressors are designed to be serviceable, and rebuilding typically means replacing the parts that naturally wear over time due to heat, friction, and continuous duty cycles. This rebuild kit is intended for straightforward, on-location installation with basic hand tools, making it a practical maintenance option for facilities that rely on consistent air output.

What’s included

This GPC compressor rebuild kit includes the key internal items most commonly replaced during routine service:

• Piston cup
• Cylinders
• O-rings
• Cup retainer screws

Compatibility and service interval

Use this kit for GPC Compressors only. If you are verifying fitment, match your compressor model and any existing part numbers before scheduling service.

As a general maintenance guideline, repair kits are commonly installed every 3 to 4 years, depending on operating conditions such as run time, heat, airflow demand, and environmental dust or moisture. Replacing seals and wear parts on schedule can help reduce air loss, improve efficiency, and support reliable starts and steady output.

Installation notes

Before rebuilding, disconnect power and relieve any stored pressure. Keep parts organized during disassembly, and inspect mating surfaces for scoring or debris. Installing the new O-rings cleanly and seating the piston cup correctly are key steps for consistent performance after rebuild. Once complete, run the unit and check for abnormal noise or leaks.

For planned maintenance, keeping a spare GPC compressor rebuild kit on hand can help you complete service quickly when wear symptoms appear.

FAQ

How do I know it’s time to rebuild? Common indicators include reduced output, harder starts, unusual noise, or increased run time to maintain pressure.

Is this kit universal? No. This GPC compressor rebuild kit is intended for GPC Compressors only.

Do I need special tools? Typically no—most rebuilds can be completed on-site with basic hand tools, but always follow your compressor’s service guidance.