351-Piece Silicone O-Ring Set – 10 Sizes, Oil & Heat Resistant

351-Piece Silicone O-Ring Assortment – 10 Sizes for Every Sealing Job

Keep leaks at bay with this comprehensive 351-piece silicone O-ring set, spanning 10 different sizes to cover a wide range of sealing applications — from automotive repair and hydraulic systems to household appliances and industrial piping. One kit, countless uses.

Why Choose This O-Ring Set?

• 10 Versatile Sizes in One Kit: A single purchase covers a broad spectrum of sealing needs, so you always have the right size on hand without hunting for individual rings.
• Premium Silicone Material: Engineered for excellent oil resistance and high-temperature stability, these rings maintain their form and seal integrity even in demanding environments like car engines and hydraulic circuits.
• Superior Elasticity & Tight Seal: The highly elastic silicone conforms precisely to mating surfaces, forming a reliable barrier against liquid and gas leaks for long-term pipeline and component safety.
• Corrosion & Aging Resistant: Resists chemical degradation and environmental aging, extending service life and reducing the need for frequent replacements — saving you time and money.
• Widely Compatible: Perfect for automotive repair, industrial piping, household appliances, plumbing fixtures, garden equipment, and more.

Product Specifications

What's in the Box?

• Silicone O-Rings × 351 pieces (10 size variants)

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For more information on safe use of sealing materials in automotive and industrial applications, refer to guidance from the U.S. Consumer Product Safety Commission (CPSC).

Learn more: O-ring

Frequently Asked Questions

Q: What sizes are included in this 351-piece silicone O-ring set?

A: The set includes 10 different sizes, providing a comprehensive assortment to suit a wide range of sealing applications — from small household fittings to larger automotive and industrial pipe connections.

Q: Are these silicone O-rings suitable for use with oils and high temperatures?

A: Yes! The rings are made from high-quality silicone specifically chosen for its excellent oil resistance and high-temperature stability, making them well-suited for car engines, hydraulic systems, and other demanding environments.

Q: Can these O-rings be used for both liquid and gas sealing applications?

A: Absolutely. The highly elastic silicone material conforms tightly to mating surfaces, creating an effective seal against both liquid and gas leaks in pipelines, appliances, plumbing, and automotive components.

Q: How long will these silicone O-rings last?

A: Silicone is inherently resistant to corrosion, chemical exposure, and environmental aging. With proper installation and normal use, these O-rings are designed for long service life, reducing the frequency and cost of replacements.