Injector O-rings Colors

01
🟢 Green
often Viton (FKM),
used for high temperature and fuel resistance.

02
⚫ Black
usually NBR (Nitrile),
common for general oil and fuel sealing.

03
🔵 Blue
often Silicone,
good for high flexibility and temperature range.

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

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

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

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
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
