Bosch spark plug for R2V WR7DC Yttrium

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The BOSCH W7DC spark plug was factory-fitted to BMW motorcycles.

In 2001, BOSCH used electrodes with the addition of yttrium, naming the spark plug line YTTRIUM and adding the letter R to the designation.

Thanks to this element, YTTRIUM candles are characterized by very high resistance to erosion, corrosion, thermal overload and chemical agents - in a word, durability and reliability of ignition.

Parameters:

• Electrode gap: 0.8
• Tightening torque [Nm]: 28
• Thread size: M 14 x 1.25
• Thread length [mm]: 19
• Key size: 20.8
• Electrode location [mm]: 3
• Number of poles: 1