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

$5.25 $6.79

351-Piece Silicone O-Ring Assortment – 10 Sizes for Automotive & Plumbing

Keep your equipment leak-free with this comprehensive 351-piece silicone O-ring set. Featuring 10 different size specifications in a single kit, this assortment covers a wide range of sealing needs — from automotive systems to household plumbing and industrial pipelines. Made from high-grade silicone, these red O-rings deliver reliable performance in demanding conditions.

Key Features

351 Pieces, 10 Sizes: A versatile assortment designed to handle virtually any sealing application in piping systems, cars, and machinery.
High Temperature & Oil Resistant: The silicone construction withstands elevated temperatures and resists oil and fluid exposure, maintaining a durable seal in demanding environments.
Superior Sealing Performance: Each O-ring provides a stable, airtight seal to prevent liquid and gas leakage, protecting your equipment and ensuring smooth operation.
Easy Installation: Precisely dimensioned for a snug, hassle-free fit — swap out worn seals quickly without specialist tools, saving you time and effort.
Long-Lasting Durability: Specially treated for excellent wear and corrosion resistance, these O-rings maintain stable performance even in harsh or high-stress environments.
Color: Red
Material: Silicone
Quantity: 351 pcs / set (10 size variants)

Ideal Applications

Automotive fuel, coolant, and hydraulic systems
Household and industrial plumbing pipelines
Machinery and equipment maintenance
DIY repair and home workshop projects

Made in Mainland China.

Note: Please allow 2–3% dimensional variance due to manual measurement. Colors may appear slightly different on-screen vs. the actual product.

Frequently Asked Questions

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

A: The set includes 10 different size specifications. Exact dimensions are shown in the product images. With 351 total pieces spread across these sizes, you'll have a broad selection on hand for automotive, plumbing, and equipment maintenance tasks.

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

A: Yes. The silicone material offers strong resistance to elevated temperatures and oil exposure, making these O-rings well-suited for use in automotive fuel lines, coolant systems, and hydraulic circuits, as well as general industrial piping.

Q: How durable are these O-rings in harsh environments?

A: These silicone O-rings have been specially treated to provide excellent wear and corrosion resistance. They are engineered to maintain long-term sealing performance even under continuous use in demanding or high-stress conditions.

Q: Can I use this O-ring set for DIY home plumbing repairs?

A: Absolutely. The assortment's wide range of sizes makes it a practical toolkit for DIY plumbing fixes, faucet maintenance, garden hose fittings, and other household sealing projects.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.