Lucstar 195PCS A/C Seal Kit,AC O Ring Assortment Kit

Lucstar 195PCS A/C Seal Kit is a complete automotive air-conditioning sealing assortment that supplies 90 nitrile O-rings and 105 sealing washers to service A/C lines, compressor ports, valve cores, and common refrigerant connections.

This kit gathers the most frequently needed sealing parts for R134a automotive A/C systems into one organized set. Designed for routine maintenance, leak repair and compressor service, the assortment pairs nitrile O-rings with stamped sealing washers that match common compressor port sizes and vehicle fittings. Everything arrives in a compact tray so technicians and DIYers can quickly identify sizes and replace degraded seals without hunting for single pieces that may be discontinued.

Which parts are included and why do they matter?

The Lucstar kit contains 195 pieces total: 90 nitrile O-rings across 30 sizes (three of each) plus 105 sealing washers spanning 12 common compressor and port models. These parts ensure gas-tight connections at line joints, service valves, and compressor mounting points where small leaks commonly start.

• 90 O-rings: 30 sizes × 3 each, made of NBR nitrile for oil and refrigerant resistance.
• 105 sealing washers: 12 stamped models to match compressor ports and valve cores.
• Compact sorted tray for easy selection during repairs or maintenance.

How do these materials perform with automotive refrigerants and oils?

O-rings are molded from NBR (nitrile rubber), a material chosen for resistance to petroleum oils and typical automotive refrigerants like R134a. The sealing washers are metal-backed and formed to compress against mating surfaces to stop gas and oil migration at service points.

• Nitrile O-rings resist common lubricants and refrigerant contact.
• Sealing washers provide reliable crush sealing for compressor ports and hose fittings.
• Suitable for typical automotive environments — heat, oil exposure, and vibration.

Which vehicles and components will this kit fit?

This assortment targets a wide range of light-vehicle A/C systems and related components. The included washer models cover many compressor port standards and the O-ring size range handles fittings on hose assemblies, service ports, accumulator/drier lines and aftermarket parts.

• Compatible with vehicles using R134a refrigerant and conventional compressor ports.
• Fits hose unions, valve cores, service ports, and compressor port seals.
• Useful for professional shops and DIY maintenance across many makes and models.

How should I use and store the kit to get best results?

Choose the correct diameter and thickness for the mating surfaces, lightly lubricate nitrile O-rings with system-compatible oil before installation, and replace washers with the correct model to ensure proper crush sealing. Store the kit in a cool, dry place away from direct sunlight to preserve rubber elasticity.

• Select matching size using the tray layout and test-fit before final assembly.
• Apply a small amount of compatible refrigerant oil to O-rings for easier seating and longer life.
• Keep the kit sealed and out of UV/light to prevent premature rubber aging.

Who is this for: The Lucstar 195PCS A/C Seal Kit is intended for automotive technicians, fleet maintenance staff, and experienced DIYers who perform A/C system servicing or compressor replacements. It’s especially helpful when you need an organized, broad selection of O-rings and sealing washers on hand for leak repair, component replacement or preventative maintenance on R134a systems. If you require manufacturer-specific OEM parts for rare or legacy vehicles, verify fitment before installation; for common modern systems, this kit covers most routine sealing needs.