Correct for 914-6 since it has 911 part number BUT no reason why it can't be used for 914-4. -4 had smaller tires at the time hence the weight was .77. -6 had larger tires and had.80 weight. Since everyone is running larger tires this speedometer should be running closer to correct speed reading. Fully restored by John Bell.
PP:a914nut@email.com