Daptemn A/C Compressor Sealing Kit 175‑piece – Metal Port Washers & NBR O‑Rings for Automotive Refrigeration

Daptemn's 175-piece A/C compressor sealing kit gives you a comprehensive assortment of gaskets and NBR O-rings designed to repair and reseal automotive air conditioning compressor ports and fittings.

This kit combines a wide range of self-centering metal port washers and nitrile (NBR) O-rings sized for many common vehicle compressor service needs from about 2000–2015 models and beyond. The parts are intended for sealing refrigerant and lubricant lines, threaded plugs and fittings where a reliable compressive seal and resistance to oil and fuel are required. Packaged as a mechanic-friendly assortment, the set helps limit downtime by providing multiple sizes so you can match the correct ID/OD and thickness at the bench or roadside.

Which components are included in the kit and what sizes will I find?

The kit contains 175 pieces split between plated self-centered port washers and nitrile O-rings, covering a broad range of inner and outer diameters and thicknesses for compressor ports and A/C fittings.

• 90+ metal sealing washers in multiple diameters and thicknesses (examples include 31.5×17.5×1.3mm, 28.5×15.2×1.3mm, 25×17.3×1.3mm, etc.).
• Approximately 85 NBR O-rings spanning small to larger cross-sections (samples: 5.29×1.78mm up to 17.04×3.53mm).
• Quantities vary per size so you’ll have spare pieces for repeated jobs or stock replenishment.

How do these materials perform with refrigerant oil and under pressure?

Seal materials were chosen for compatibility with common automotive refrigerant oils and to withstand compressor system conditions without rapid degradation.

• Washers are plated (galvanized) to resist rust and provide a durable sealing face.
• O-rings are nitrile (NBR), offering oil resistance and flexibility across automotive temperature ranges.
• Rated working temperature range roughly -30°C to 120°C and designed for high-pressure tubing applications.

Which vehicles and repair scenarios is this kit suited for?

The assortment was selected to fit many common automotive A/C compressor ports and line fittings used by a wide range of manufacturers, making it useful for general service and emergency repairs.

• Compatible with many passenger cars and light trucks from brands like Suzuki, Chevy, Ford, Dodge, Honda, BMW, Nissan and similar models.
• Ideal for replacing worn port gaskets, resealing threaded plugs, and restoring compressor line integrity.
• Also applicable for sealing mechanical joints in fuel, oil, or non-corrosive fluid systems where NBR and plated washers are appropriate.

How should I select the correct washer or O-ring during replacement?

Choose by matching inner and outer diameters plus thickness or cross-section to the original seal; having the full assortment makes identification quicker at the bench.

• Measure the failed part’s ID/OD and thickness, then pick the closest match from the kit sizes.
• Confirm material compatibility with your system fluid (NBR for common oils; plated washers for mechanical compression seals).
• When in doubt, use a spare piece from the kit to test-fit before final assembly.

Who this is for: Mechanics, DIY enthusiasts and fleet technicians who service automotive A/C compressors, refrigerant lines and related threaded connections will find this Daptemn kit useful. It’s especially helpful for workshops that need a broad selection of sizes on hand to quickly diagnose and repair leaks without repeatedly ordering single-size parts. If you require seals for specialty refrigerants or extreme temperatures, verify material compatibility before installation.