High-Performance Alumina Ceramic Spark Plug Insulator
The spark plug insulator (white ceramic body) reliably insulates tens of kV from the ignition coil to the center electrode under extreme combustion conditions: >800–1000°C, thermal shock, high voltage, and chemical corrosion.
Made from high-purity alumina ceramic using optimized formulation, isostatic pressing, high-temperature sintering, and precision finishing — delivering excellent insulation, heat dissipation, and long-term durability for modern high-performance engines.
Core Advantages
- Outstanding high-temp insulation & no flashover
- Superior heat removal → lower pre-ignition risk
- Long life (>100,000 km typical)
- Anti-tracking rib design
- Tight tolerances & reliable fit
- Excellent cost-performance
Applications
- Gasoline cars (turbo/GDI)
- Motorcycles & racing
- Small engines (generators, lawn, UAV)
- CNG/LPG/natural gas engines
- Aftermarket/performance upgrades
FAQ
Q1: What alumina purity do you recommend for high-performance/turbo engines?
A: 95%–99% Al₂O₃ offers the best combination of thermal conductivity, dielectric strength, and thermal shock resistance.
Q2: Can these insulators be used to manufacture racing or iridium spark plugs?
A: Yes — they are widely used in premium racing and high-end iridium/platinum spark plugs due to excellent heat management and durability.
Q3: Do you provide samples for testing?
A: Yes, small quantities of samples are available. Please contact us with your required specifications.
Contact us for custom specs, samples, or bulk pricing!
