Porsche PART NO. 914-641-302-10
"Silver Dot" or silver center button on the needle
Separate turn signal indicators (left and right) within the gauge face.
0-7,000 RPM range with a redline 5,800 RPM.
Early 1970 units sometimes required a "tach adapter" to work with certain ignition systems, while 1971–1973 units were updated internally to work directly with high-impedance CDI circuits.