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

Never get caught short on the right seal again. This comprehensive 351-piece silicone O-ring kit delivers 10 different sizes in a single set, giving you everything you need to tackle automotive repairs, plumbing pipelines, industrial fittings, and household appliances — all in one affordable package. Made in Mainland China.

Why Choose This O-Ring Kit?

Massive 351-Piece Value Set: Ten distinct sizes mean you'll always have the right ring on hand, eliminating multiple shopping trips and reducing downtime.
Premium Silicone Material: High-grade silicone construction delivers excellent resistance to oils, fuels, and high temperatures — ideal for engine bays, hydraulic systems, and pressurised pipelines.
Superior Elasticity & Tight Seal: The highly flexible silicone conforms precisely to mating surfaces, creating a reliable barrier that prevents liquid and gas leaks for long-term performance.
Corrosion & Aging Resistant: Engineered to withstand harsh chemicals and environmental exposure, extending service life and reducing the need for frequent replacements.
Broad Application Range: Perfect for car and truck repairs, industrial piping, hydraulic components, household appliances, and general DIY sealing tasks.

Product Specifications

Material	High-grade Silicone
Color	Red
Sizes Included	10 different sizes
Total Quantity	351 pieces
Key Properties	Oil resistant, high-temperature resistant, corrosion resistant
Typical Applications	Automotive repair, industrial piping, hydraulic systems, household appliances
Country of Origin	Made in Mainland China

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Learn More About Sealing Standards

For guidance on proper sealing materials and safety standards for plumbing and automotive components, visit the U.S. Consumer Product Safety Commission (CPSC).

Learn more: O-ring

Frequently Asked Questions

Q: What sizes are included in the 351-piece silicone O-ring assortment kit?

A: The kit includes 10 different sizes across the full 351-piece set, covering a broad range of common automotive, plumbing, and industrial fitting dimensions. Having multiple sizes ensures you can find the right fit for most standard sealing applications without needing separate purchases.

Q: Are these silicone O-rings suitable for high-temperature automotive applications?

A: Yes. The O-rings are made from high-grade silicone, which offers excellent resistance to heat and oils, making them well-suited for engine bay components, hydraulic systems, and other demanding automotive and industrial environments.

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

A: Absolutely. The highly elastic silicone material forms a tight, conforming seal against mating surfaces, making these O-rings effective for preventing leaks in both liquid (fuel, coolant, hydraulic fluid) and gas applications within pipelines and automotive systems.

Q: How long do silicone O-rings last compared to standard rubber O-rings?

A: Silicone O-rings generally offer superior longevity compared to standard rubber alternatives because of their enhanced resistance to heat, oil, corrosion, and environmental aging. This makes them a more economical long-term sealing solution for automotive and industrial use.

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.

We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.