NGK Sparkplug Jr9c - FJ

Spark Plug
- NGK JR9C
- Sold each

Multi-ground electrodes improve ignition capabilities and are less sensitive to increased voltage requirements due to gap growth.

Designed to specific manufacturer ignition requirements, NGK's multi-ground plugs maintain all the features of their standard plugs, including:
- Corrugated ribs to prevent flashover
- Pure alumina silicate ceramic insulator, providing superior strength and better heat transfer
- Copper core to aid in heat removal
- Triple seals to prevent leakage

Specifications:

Shell
Thread Size: 12mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor: Yes
Resistor Value: 5K Ohm
Reach: 19mm (3/4")
Hex Size: 18mm
Terminal Type: Threaded Stud
Overall Height: ISO
Gap: .028" (0.7mm)

Center Electrode
Material: Nickel
Type: Standard
Size: 2.5mm

Ground Electrode
Material: Nickel
Type: Multi-Ground
Quantity: 2

Torque Specs
Cast Iron: 10.8-18 lb. ft.
Aluminum: 10.8-14.5 lb. ft.
Heat Range: 9

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An INEX Legends approved part.

Do you need a part for your Legend car that we don't have on our website? Performance Auto is an INEX Legend Dealer. From a single bolt to a complete car, we can get you any part that you need. Call 1-800-373-4641 with your request.