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NGK Multi-Ground Spark Plug
1633 LMAR9D-J
Item #: LMAR9D-J
Manufacturer: NGK
29.9500
EACH
NGK 1633 LMAR9D-J Multi-Ground Spark Plug
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
| Shell | |
| Thread Diameter | 10mm |
| Thread Pitch | 1.0mm |
| Seat Type | Gasket |
| Reach | 26.5mm (1.04") |
| Hex Size | 9/16" (14mm) |
| Terminal Type | Solid |
| Overall Height | ISO |
| Gap | .031" (0.8mm) |
| Center Electrode | |
| Material | Nickel |
| Type | Standard |
| Size | 2.5mm |
| Projection | Projected |
| Ground Electrode | |
| Material | Nickel |
| Type | Multi-Ground |
| Shape | |
| Quantity | |
| Specifications | |
| Resistor | Yes |
| Resistor Value | 5k Ohm |
| Heat Range | 9 |
| Torque Specs | Cast Iron: 7.2-10.8 lb. ft. Aluminum: 7.2-8.7 lb. ft. |
| Longevity | 50k Miles |