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Super Plus Resistor Spark Plug - BMW Airhead (WR5DC+); 12 12 1 338 146 / BOSCH 7992
BMW R45 spark plugs, BMW R65 spark plugs, BMW R50/5 spark plugs, BMW R100 spark plugs. BMW R Spark plugs, BMW R airhead spark plugs, airhead spark plugs, R spark plugs, bmw motor
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BOSCH Ytrium Core Super Plus Spark Plug. 3/4 (0.75) inch reach. (0.708 inch with tapered seat). 14mm thread diameter. Extended tip electrode.
Equivalent NGK Spark Plug BP7ES now available!

Vehicle Manufacturer: BMW
Application: AIRHEADS; R45, R65, R50/5, R100 (1977-84) not 100/7/ T 77-78
Make/Model: BMW : R45, R65, R50/5, R100 (1977-84)
Model Years: 1977 to 1984
Manufacturer #: 12 12 1 338 146
Power Rating: Heat Range 5 (1=Cold / 9=Hot)

(See APPLICATION TABLE tab to verify vehicle fitment )

Original Equipment : 123

BMW List Price $8.65
USD Price $3.99
BUY NOW $2.99

Quantity in Stock:266


Application Table
NOTE: A plug with a low heat range number is a cold plug that quickly dissipates heat to the engine block and cooling system, while a high heat range is a hot plug that retains heat. By properly selecting the heat range of the plug, it ensures that the plug will operate between the plug’s designed operating range of 500-900 degrees Celsius. In this range, the spark plug will be self-cleaning, yet will not be hot enough to pre-ignite the air/fuel mixture

Replaced spark plug No: W5DC

Features Ytrium Center electrode - Longer performance life,

V groove ground electrode for increased flame kernel propagation.

Please read the Bosch Super Plus Spark Plugs Technical Flyer for more information.

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