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

Stop Leaks for Good with This 351-Piece Silicone O-Ring Kit

Whether you're fixing a leaky car engine, sealing hydraulic lines, or maintaining household appliances, this 351-piece silicone O-ring assortment has you covered. With 10 standard sizes in one convenient kit, you'll always have the right seal on hand — no more last-minute hardware runs or costly downtime.

Made in Mainland China.

Why Choose This O-Ring Set?

• 10 Standard Sizes Included: One kit covers a wide range of sealing applications — from tiny appliance fittings to larger automotive and pipeline connections.
• Premium Silicone Material: Excellent resistance to oil, high temperatures, and harsh chemicals — performs reliably in demanding environments like car engines and hydraulic systems.
• Superior Elasticity: The silicone construction creates a tight, conforming seal that effectively prevents liquid and gas leaks, protecting your pipelines and vehicle components long-term.
• Corrosion & Aging Resistant: Built to last, these O-rings resist degradation from oils, fuels, and environmental exposure — reducing the need for frequent replacements.
• Wide Application Range: Perfect for automotive repair, industrial piping, plumbing, and household appliances. A must-have for any toolbox or workshop.
• Great Value: 351 pieces at a budget-friendly price means you're always stocked up and ready for any sealing job.

Product Specifications

• Material: Silicone (Rubber)
• Color: Red
• Sizes: 10 different standard sizes
• Quantity: 351 pieces total
• Applications: Automotive, pipelines, hydraulic systems, household appliances, industrial machinery

What's in the Box?

• Silicone O-Rings × 351 pieces (10 standard sizes)

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Safety & Standards

For information on workplace safety when handling sealing materials and chemicals, visit OSHA's Chemical Hazards Resource.

Frequently Asked Questions

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

A: This set includes 10 different standard O-ring sizes, making it suitable for a wide variety of sealing applications including automotive repairs, pipelines, hydraulic systems, and household appliances. The assortment ensures you always have the right fit available.

Q: Are these silicone O-rings oil and heat resistant?

A: Yes! These silicone O-rings are specifically designed for excellent oil and high-temperature resistance. They perform reliably in demanding conditions such as car engines, hydraulic lines, and industrial piping where heat and oil exposure are common.

Q: Can I use these O-rings for both automotive and household plumbing applications?

A: Absolutely. The silicone material and standard sizing make these O-rings highly versatile — they are suitable for automotive repair, household plumbing, industrial piping, and appliance maintenance, giving you one kit for virtually all your sealing needs.

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

A: Silicone O-rings generally outlast standard rubber O-rings due to their superior resistance to corrosion, aging, temperature extremes, and chemical exposure. This makes them a more economical and practical choice over the long term, reducing the frequency of replacements.