A‑1 O‑Ring Kit 382Pcs NBR70 O Ring Repair Box, Rubber Sealing Rings for Automotive Sealing

This A‑1 O‑Ring Kit repair box contains 382 pieces assorted NBR70 O‑rings covering 30 common metric sizes. It is a practical maintenance spare‑parts kit for automotive sealing and general machinery repair.

All o‑rings are manufactured from NBR nitrile rubber, featuring excellent oil‑resistant performance, moderate heat‑resistance and anti‑aging property. The matched blue plastic storage box keeps different sizes separated, avoids loss and easy for field repair carrying. Widely used in auto repair shops, equipment maintenance workshops, parts wholesale and export business.

Core functions

• Seal hydraulic oil, gear oil, lubricant and coolant for automotive assemblies
• Prevent liquid and gas leakage on pipe joints, valve and fitting connections
• Convenient assorted kit for emergency on‑site repair replacement
• Compact case for neat storage and quick size selection

Features & Benefits

• A‑1 standard metric O‑ring kit, total 382pcs, covers 30 most‑used repair sizes.
• NBR70 nitrile rubber material, outstanding oil‑resistant performance for automotive working conditions.
• Factory direct supply, ready stock, ideal for auto repair shops and aftermarket replacement.
• Sturdy blue plastic compartment box, easy classification, portable for on‑site maintenance.
• Support sample trial, small‑batch retail and large‑volume export wholesale.
• OEM private‑label service available for overseas auto‑parts distributors.
• Good compatibility with engine oil, hydraulic oil, gear oil and cooling liquid.
• FKM fluororubber upgrade kit available for high‑temperature heavy‑duty working scenarios.

Material & Process

• Material：NBR70 nitrile rubber
• Hardness：70 Shore A
• Key properties：Oil‑resistant, wear‑resistant, anti‑aging, moderate temperature resistance
  Working temperature:‑20℃ ~ +120℃

Manufacturing features

• Precision molded metric standard O‑ring dimensions.

• Good compatibility with engine oil, gear oil, hydraulic oil and coolant.

• Hard plastic sorting box with separate compartments for each size.

• Upgrade option：FKM fluororubber o‑ring kit for higher‑temperature working conditions.

Packaging & Delivery

• Inner package：Individual blue plastic sorting box.
• Outer package：Export carton.
• Packing quantity：1 set / box.
• MOQ and lead time：In stock: ships in 1 to 2 days. Not in stock but still in current production: 10 to 15 days. Not in stock and not in production: 25 to 30 days.
  Shipping protection: Shock‑resistant carton to avoid box deformation during transit.