Naraku Item number: NK14R9LS
Naraku
4,10 €*
available immediately
Shipping weight 0,06 kg
Naraku spark plug as it is also mounted in the vehicle from the factory. Heat value and plug structure correspond to the original.

Produced according to OEM guidelines of Japanese vehicle manufacturers for a perfect repair and longevity.

The service life of a plug is determined by the fuel type, engine condition, operating times and engine temperature. For 4-stroke engines from 250cc, the plugs should be cleaned or changed after 6000km. With less displacement, especially 2-stroke, approx. every 2500km. After this mileage, oil carbon deposits lead to starting difficulties and power loss caused by the spark plug. Increased short-distance operation and poor engine oil quality can shorten the intervals.

Width across flats: 20.8mm
Thread diameter: 14,0mm
Thread length: 19,0mm
Electrode gap: 0,8mm
Resistance: suppressed, 5kOhm

OEM numbers for comparison purposes:

NGK: BR9ES
Bosch: WR 3 CC / 0 242 255 502
Champion: OE 091 / QN 2 / QN 2 C / RN 2 / RN 2 C
Denso: W 27 ESR / W 27 ESRU

14 = B thread diameter 14mm
R = R (Resistor) Resistor core 5kOhm
9 = 9 heat value
L = E (Long) long candle thread
S = S StandardAI-translation

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OEM numbers (for comparison purposes only)
NGK:
BR9ES
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