Heavy Duty Pro Grade Hydraulic O Ring Seal Kit 212 Pieces With Buna N 90A NBR O Rings, 20 Sizes For SAE And Straight Thread Tube Fittings, Oil Resistant High Temp Durable Seals For Hydraulic Pumps And Fittings

Heavy-Duty Hydraulic O-Ring Seal Kit, 212-Piece Boss Set
✔️ 212pcs kit: 20 sizes Buna-N 90A O-rings in durable oil resistant

This heavy-duty O-ring seal kit delivers a complete set of boss O-rings for hydraulic and pneumatic systems. It’s ideal for repair shops, service vehicles, and field work where a wide range of boss tube fittings require quick, reliable sealing.

✅ 212-piece O-ring set in Buna-N 90A for sealing reliability
✅ 20 sizes cover SAE and straight thread fittings for many jobs
✅ Oil resistant and high temperature tolerance for tough hydraulic duties
✅ UV and wear resistance for longer service life in harsh environments
✅ Heavy-duty storage case keeps sizes organized and portable
✅ Suitable for bosses in hydraulic pumps, valves, cylinders, and motors
✅ Includes standard dimension references for common boss fittings
✅ Ideal for repair shops, fleets, and maintenance crews

💡 What is a hydraulic O-ring seal kit used for in maintenance?

Handy for on-site sealing across hydraulic pumps, valves, lines, and cylinders.

- handy for on-site sealing across hydraulic pumps, valves, lines, and cylinders - covers 20 sizes for SAE and straight-thread fittings - Buna-N 90A material offers oil resistance and high temperature tolerance