NGK SPARK PLUG JR9B 3188 NG3188
NGK Spark Plug JR9B 3188 NG3188. Features a wide heat range due to the use of copper wire instead of iron cores. Copper quickly dissipates heat, cooling the electrode and insulator tip. High-conduction copper and long-nose insulator raise pre-ignition rating. Designed to meet the requirements of high-performance engines. Sold individually. Specifications include a Heat Range of 9, Thread Size of 14 mm, Type: Resistor. Units Sold: Each. Weight: 0.12 lbs. Alternate/OEM Part Numbers: 3188, JR9B. This spark plug ensures reliable ignition and enhanced performance.
- SKU
- 37-JR9B
- Brand
- NGK
- Availability
- In Stock (54)
FULL DESCRIPTION
NGK Spark Plug JR9B
The NGK Spark Plug JR9B is engineered for optimal ignition and enhanced performance. This spark plug features a wide heat range, facilitated by the use of copper wire instead of iron cores. Copper's excellent heat dissipation properties help to cool the electrode and insulator tip, while its high-conduction nature and the long-nose insulator contribute to a higher pre-ignition rating, meeting the demands of high-performance engines.
Key Features:
- Wide heat range for versatile performance
- Copper construction for efficient heat dissipation
- Long-nose insulator design to raise pre-ignition rating
- Designed to meet high-performance engine requirements
- Resistor type for reliable ignition
- Trivalent metal plating offers anti-corrosion and anti-seizing properties
- Corrugated ribs prevent flashover
- Pure alumina silicate ceramic insulator for superior strength and heat transfer
- Triple seals to prevent leakage
- Sold individually
Specifications:
- Heat Range: 9
- Thread Size: 14 mm
- Type: Resistor
- Weight: 0.12 lbs
- Alternate/OEM Part Numbers: 3188, JR9B


