Oil-Free Air Compressor Cylinder & Piston Ring Kit 550W–1500W

Oil-Free Air Compressor Cylinder Sleeve & Piston Ring Replacement Kit

Keep your oil-free air compressor running at peak performance with this precision-engineered cylinder sleeve and piston ring replacement kit. Compatible with a wide range of compressor wattages from 550W to 1500W, this complete 6-piece set gives you everything needed for a reliable, leak-free rebuild — saving you the cost of a full compressor replacement.

Made in Mainland China.

Why Choose This Kit?

• Precise Manufacturing: Tight tolerances ensure a proper fit and long service life.
• Complete Set: Comes with cylinder sleeve, piston ring, and 4 nitrile rubber sealing gaskets — everything you need in one package.
• Nitrile Rubber Seals: Durable NBR sealing rings resist wear, heat, and compression, maintaining a consistent airtight seal.
• Multiple Size Options: Four size variants to match your specific compressor model's wattage and cylinder dimensions.
• Long-Term Reliability: Quality rubber construction designed for extended, repeated use under compressor operating conditions.

Size Guide — Choose Your Compressor Wattage

Specifications

• Type: Oil-Free Cylinder Sleeve + Piston Ring Kit
• Material: Nitrile Rubber (NBR)
• Color: Black
• Quantity: 6 pcs/set
• Compatible Compressor Types: Oil-free air compressors

Package Includes

• 1 × Cylinder Sleeve
• 1 × Piston Ring
• 2 × O-shaped Gaskets
• 1 × Catheter Gasket
• 1 × Square Gasket

Important Notes

• Please verify your compressor's cylinder dimensions before ordering — refer to the size guide above.
• Slight color variation may occur due to monitor display settings.
• Allow ±1–2 mm tolerance for manual measurements.

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For general guidance on safe use of air compressors and compressed air equipment, refer to the OSHA Compressed Air Safety resource.

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Frequently Asked Questions

Q: How do I know which cylinder kit size is right for my oil-free air compressor?

A: Match the kit size to your compressor's wattage. Use the 63.5×69×24.5 mm kit for 550W–600W units, the 63.5×69×47.5 mm kit for 750W–980W units, the 63.5×69×50 mm kit for 1100W units, and the 69×75×47.5 mm kit for 1500W compressors. If unsure, measure your existing cylinder sleeve dimensions directly before ordering.

Q: What sealing rings are included in this air compressor piston ring kit?

A: Each kit includes 4 nitrile rubber (NBR) sealing rings: 2 O-shaped gaskets, 1 catheter gasket, and 1 square gasket — providing a comprehensive seal set for a complete cylinder rebuild.

Q: Is this kit suitable for oil-lubricated air compressors?

A: No — this kit is specifically designed for oil-free air compressors. The piston ring and cylinder sleeve materials are matched to oil-free operating conditions. Using it in an oil-lubricated compressor is not recommended.

Q: Can I install this cylinder and piston ring kit myself?

A: Yes, with basic mechanical skills and the right tools, this kit can be installed as a DIY replacement. Ensure the compressor is fully depressurized and disconnected from power before beginning any repair. If you are unsure, consult a qualified technician.