Why Injector O-Rings Come in Different Colors

Oct 22, 2025

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Injector O-rings Colors

 

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01

🟢 Green

often Viton (FKM),

used for high temperature and fuel resistance.

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02

⚫ Black

usually NBR (Nitrile),

common for general oil and fuel sealing.

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03

🔵 Blue

often Silicone,

good for high flexibility and temperature range.

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04

🟠 Orange / Brown

also FKM or fluorosilicone,

for high-performance automotive applications.

 

So, the color isn't just for looks - it helps mechanics and manufacturers quickly match the right material for each injector system.

 

 

Our Advantages

 
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Quality & Performance

 

  • Smooth surface with small and clean parting line, free from burrs
  • High elasticity and excellent tensile strength
  • Long service life, not easy to deform

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Customization & Capability

 

  • Flexible customization for size, color, and hardness (OEM & ODM available)
  • Rich mold inventory with over 1,000 existing molds - no extra tooling cost
  • Professional technical support providing material and standard recommendations

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Efficiency & Service

 

  • Factory-direct price with strict 100% quality inspection
  • Fast delivery with large in-stock supply
  • Quick logistics, only one hour from factory to port

 

Our

 Service

 

From inspiration to installation, we want to help create a home that fills you with delight and comfort.
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One-Stop Solutions
Our company offers one-stop solutions, including design, customization, production, and delivery.
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Fast Delivery
Our factory is conveniently located only 1 hour from the port, enabling fast shipment and efficient logistics.

 

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After-Sales Support

Assistance with installation, troubleshooting, and maintenance.

Replacement or repair services in case of product issues.

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24/7 Customer Service

Our 24-hour customer support ensures all inquiries are handled promptly.

 

 

 

Contact US

 

 

Xiamen Best Seal Imp and Exp Co.,Ltd

Tel: +86-592-5782315

Mob: +8618950159396

Email: [cherrychen@bestsealhk.com](mailto:cherrychen@bestsealhk.com)

Add: Unit 522-525, Gaodian Road 6#, Huli District, Xiamen, China

 

 

 

 

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