Based in Dongguan, Guangdong—China’s premier hub for automotive rubber component manufacturing—HS specializes in high quality custom silicone rubber O-rings seals, engineered as critical automotive parts for vehicle applications and automotive sealing systems. Our Auto-02 auto silicone O ring seals are precision-crafted via mould processing to meet the stringent performance standards of the automotive industry, combining material versatility, full customization, and industry-leading certifications to deliver reliable sealing solutions for vehicle manufacturers and parts suppliers worldwide. Whether you require standard silicone rubber O-rings seals for auto parts replacement or bespoke custom-shaped O-rings for specialized automotive sealing systems, our factory-direct capabilities ensure consistent quality, on-time delivery, and cost-effective solutions tailored to your vehicle application needs.
Core Features of Our Silicone Rubber O-Rings Seals Our silicone rubber O-rings seals and auto silicone O ring seals stand out for their automotive-grade durability, material flexibility, and precision sealing performance—key traits that make them ideal for vehicle applications and automotive sealing systems.First, the material quality of our silicone rubber O-rings seals is unmatched. We utilize premium silicone rubber (supplemented with EPDM, NBR, and NR options) that delivers exceptional resistance to automotive fluids (oil, coolant, fuel), extreme temperatures (-40°C to 230°C), and mechanical wear—critical for maintaining airtight, leak-proof seals in the harsh operating environments of vehicle systems. This material composition also ensures silicone rubber O-rings seals remain flexible and elastic, resisting compression set and cracking even after prolonged use in auto parts replacement scenarios.Second, full customization defines our silicone rubber O-rings seals. We offer custom shapes to fit any automotive sealing system component, custom colors per customer’s request, and customized logo printing to align with automotive brand identity. Our mould processing achieves a tolerance of ±0.05mm, ensuring silicone rubber O-rings seals create precise, secure seals for vehicle engines, transmissions, and hydraulic systems—eliminating performance issues caused by ill-fitting O-rings.Third, versatility is embedded in every silicone rubber O-rings seal we produce. Beyond their primary role in automotive sealing systems, our O-rings serve as reliable auto parts replacements for worn or damaged OEM components, adapting seamlessly to diverse vehicle applications from passenger cars to heavy-duty commercial vehicles.
Competitive Advantages of Our Silicone Rubber O-Rings Seals Choosing our silicone rubber O-rings seals and auto silicone O ring seals means partnering with a manufacturer with 20+ years of rubber processing expertise, prioritizing quality, compliance, and customer-centric service for vehicle applications. Industry-Leading Certification & Quality Control Our silicone rubber O-rings seals are certified to ISO14001, ISO45001, and IATF16949 (the global standard for automotive manufacturing), validating their environmental safety, occupational health compliance, and alignment with strict vehicle industry requirements. Every silicone rubber O-rings seal undergoes 100% quality inspection before shipment, including dimensional verification, fluid resistance testing, and elasticity validation—ensuring zero defects and consistent performance across every batch of auto silicone O ring seals. Flexible Ordering & Scalable Production We offer a MOQ of 1000 pieces for silicone rubber O-rings seals, making our solutions accessible to small and medium-sized auto parts suppliers, while our 10,000-square-meter production facility and 2000+ existing molds enable scalable production to meet bulk orders for major vehicle manufacturers. Samples of silicone rubber O-rings seals are available for testing, allowing you to validate fit and sealing performance before full production for auto parts replacement projects. Cost-Effective Factory-Direct Pricing As a direct manufacturer, we eliminate middleman markups, offering competitive pricing on silicone rubber O-rings seals without compromising material quality or precision. Our one-stop procurement service streamlines the entire process—from design and prototyping to production and delivery—reducing lead times and supply chain costs for your vehicle application orders. Technical Expertise & 24/7 Support Our team of automotive rubber engineering specialists provides 7×24 online support for all inquiries related to silicone rubber O-rings seals, offering guidance on material selection (silicone/EPDM/NBR/NR) and O-ring design optimization for automotive sealing systems and auto parts replacement. We leverage our deep vehicle industry knowledge to solve complex sealing challenges, ensuring silicone rubber O-rings seals meet the unique demands of your vehicle applications.
Applications of Our Silicone Rubber O-Rings Seals Our versatile silicone rubber O-rings seals and auto silicone O ring seals serve critical roles in vehicle systems, thanks to their durability, precision sealing, and suitability for auto parts replacement:
Automotive Engine Sealing: Silicone rubber O-rings seals seal fuel injectors, coolant hoses, and oil filters in vehicle engines—their oil and heat resistance prevent fluid leaks and optimize engine performance in automotive sealing systems. Transmission & Drivetrain Systems: Custom-shaped silicone rubber O-rings seals are used in automatic and manual transmissions, protecting against gear oil leaks and ensuring smooth power transfer in vehicle drivetrains. Hydraulic Brake Systems: NBR-blended silicone rubber O-rings seals seal brake calipers and master cylinders—their chemical resistance to brake fluid ensures reliable stopping power and compliance with vehicle safety standards. HVAC & Cooling Systems: Auto silicone O ring seals seal air conditioning lines and radiator hoses in vehicle cooling systems, preventing refrigerant and coolant leaks to maintain cabin comfort and engine temperature regulation. Commercial Vehicle Sealing: Heavy-duty silicone rubber O-rings seals are adapted for truck and bus hydraulic systems—their durable composition withstands heavy vibration and extreme temperatures, serving as long-lasting auto parts replacements for commercial vehicle fleets.
At our Dongguan manufacturing facility, we leverage a team of over 100 skilled professionals and state-of-the-art mould processing equipment to produce silicone rubber O-rings seals that exceed industry standards. Our commitment to innovation is backed by 20+ product patents, and we back all silicone rubber O-rings seals with a 3-year warranty: if unused auto silicone O ring seals develop quality issues within this period, we offer free returns and replacements. Whether you need high quality custom silicone rubber O-rings seals for automotive sealing systems or reliable auto parts replacements for vehicle applications, we are committed to delivering silicone rubber O-rings seals that combine performance, durability, and value—engineered for the road, built to last.
Product Description
Company Profile
Founded in 2003, Dongguan Huangshi Rubber & Plastic Tech Co., Ltd. is one of the famous silicone and plastic products manufacturers. Our factory is located in Chang'an Town, Dongguan City, enjoying good location and convenient transportation access. Being specialized in silicon mold making,plastic mold making and silicon and plastic products manufacturing, we always try our best to provide you with best-quality products. With a workshop of 6,000 square meters and a serious QC department, we are professional in making all kinds of silicone and plastic cases for cells phones, MP3, MP4 and MP5 players, silicone keyboards, silicone series parts of electronic goods, silicone kitchen accessories and silicone toys. We are sure to make better quality and better price silicone rubber and plastic products for you. Our main foreign trade markets include Southeast Asia, Europe and America. We also provide ODM/OEM products for many national famous companies. In order to satisfy different requirements from our clients, we import raw materials and machines to make our goods reach the standards of RoHS, ISO, SGS and EN71. "Do a good job at first time; do a better job every time" is our tenet. Please don't hesitate to contact us if you have any problem. We must be the one which you can trust in. We look forward to your requirements. Choose us,and we can do better for you!