Lucstar A/C Seal Kit 195‑Piece O‑Ring & Washer Assortment, NBR Nitrile with Hook & Pick Tool

If you work on vehicle air‑conditioning systems or want a ready kit for emergency repairs, this Lucstar set bundles common nitrile O‑rings and sealing washers sized for compressor ports, valve cores and service fittings. The kit’s mix of 30 O‑ring sizes (three of each) plus 12 washer types covers most passenger cars and light trucks that use R‑134a refrigerant connections. Components are made from NBR nitrile to resist gasoline and oil contact, and the included pick tool speeds small‑part handling.

Which components are included and why they matter?

The kit groups 90 O‑rings and 105 sealing washers into a single, organized set so you can replace worn seals without guessing sizes or ordering parts separately. These parts restore gas‑tight connections at service ports, compressor fittings, and valve cores to reduce refrigerant leaks and maintain system pressure during servicing.

• 90 O‑rings: 30 sizes, three pieces of each size for common AC joints.
• 105 sealing washers: 12 models designed for compressor port and valve sealing.
• Nitrile (NBR) material: oil and gasoline resistant for automotive use.
• Hook & pick tool: simplifies removing and seating tiny seals.

How do I use this kit when servicing an AC system?

Start by matching the worn seal to the correct size in the kit; replace any pitted or hardened rings and washers when you open fittings. The pick tool helps you extract old seals safely; install new rings lightly lubricated with system‑compatible oil so they seat without twisting or tearing.

• Inspect fittings and compress parts before disassembly to find the right seal size.
• Use mild refrigerant oil to ease installation of nitrile O‑rings.
• Replace washers on compressor and valve ports during reassembly.
• Leak‑check the system after recharging to confirm proper sealing.

Will these seals fit my vehicle and resist automotive fluids?

The assortment targets common passenger car and light truck AC service points and includes sizes used by many compressors and valve cores. NBR nitrile offers good resistance to gasoline, oil and refrigerant oils, making these seals suitable for typical automotive environments, though unusual OEM materials or specialty refrigerants may require factory parts.

• Universal coverage: 30 O‑ring sizes and 12 washer models for broad compatibility.
• Material suitability: NBR for fuel and oil resistance in standard AC systems.
• Not intended for vehicles requiring OEM‑specified elastomers like HNBR or EPDM unless specified by manufacturer.

What practical benefits does the Lucstar kit bring to DIYers and technicians?

Having one kit reduces downtime and trips to parts stores by supplying multiple common sizes and spares in a single set. The mix of O‑rings and compress‑style sealing washers plus an extraction tool allows quick roadside fixes or shop maintenance without hunting individual parts.

• Time savings: immediate replacements on service visits or field repairs.
• Cost‑effective: multiple pieces per size reduce repeat purchases.
• Convenience: organized assortment for quick size matching and storage.

Who this is for: The Lucstar 195PCS A/C Seal Kit suits independent mechanics, mobile technicians, and experienced DIY auto owners who perform AC maintenance or repair. It’s ideal for anyone who wants a broad selection of nitrile O‑rings and sealing washers for R‑134a systems, a handy pick tool, and the flexibility to handle most common compressor and service port seal replacements without waiting for single‑piece orders.