Replacement for the W6DC which is no longer available.
This is the most common spark plug for pre 81 BMW air cooled boxers and it fits most models. This also the plug that we recommend for Power Kit installations and dual plug conversions.
for all /5 - /6 - R 90 S - R 60/7 - R75/7 and R100/7 + Power- and Replacement kit
Please Note: For 70 HP models (R100S, RS, RT up to 84 and also 78-84 R65 models, use WR5DC plugs
Equivalent to 12 12 1 338 145