Main characteristics
- Thread Length: 19 mm
- Contact Terminal Type: Threaded Stud
- Manufacturer: NGK
Spark plug NGK DR7EA, 7839
Item code: 7839_DR7EA
In stock
US $5.69
US $5.69
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Characteristics |
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| Thread Diameter | 12 mm |
|---|---|
| Thread Pitch | 1.25 mm |
| Conection Type | Die-casting machine washer |
| Resistor | Available |
| Resistor Resistance | 5K Ohm |
| Thread Length | 19 mm |
| Hexahedral Key Size | 18 mm |
| Contact Terminal Type | Threaded Stud |
| Total Length Without Thread | 50.5 mm |
| Spacing Between Electrodes | 0.7 mm |
| Heat Range | 7 |
| Manufacturer | NGK |
| Country of Manufacturer | Japan |
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Characteristics of electrodes |
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| Central Electrode Material | Nickel |
|---|---|
| Central Electrode Type | Standard |
| Central Electrode Diameter | 2.5 mm |
| Central electrode offset forward | No |
| Side Electrode Material | Nickel |
| Side Electrode Type | Standard |
| Number of Side Electrodes. | 1 |
Description
Spark plug important element by proper selection of engine, this efficiency depends on the details of the entire engine.
Note
Convert ferric metal coating provides reliable corrosion protection. Ceramic insulator fluted form, provides better heat transfer and prevents the formation of sparks out of the zone. Copper core wonderful removes heat.
Construction features
Resistor-fluctuating energy in time of creating sparks, form the radio frequency interference. Data interference affect power stations, radio transmitters and electronic control units, including engine control unit. Usually the resistor has a monolithic structure made of graphite and glass, his task is to organize the Central electrode voltage inside the candles.
Because the resistor has a resistance, candles not equipped them with more powerful spark, as reduced energy loss in passage through the Central electrode. For this reason, most sports and racing engines use candles without a resistor. Note, however, that if the manufacturer setting of candles with resistor, then the installation can adversely without candles affect the operation of this engine.
Because the resistor has a resistance, candles not equipped them with more powerful spark, as reduced energy loss in passage through the Central electrode. For this reason, most sports and racing engines use candles without a resistor. Note, however, that if the manufacturer setting of candles with resistor, then the installation can adversely without candles affect the operation of this engine.
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