Looking for correct bulbs for 1965 Plymouth Valiant 200 for Instrument Cluster
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From googling...
194 is a higher wattage version of the 158.
158 about 3.3W
194 about 3.8W
Higher wattage = more current and more heat.
IMHO
If you can get the 158 that is what I would stick with.
I have melted lenses using higher wattage bulbs
Mymopar.com
Download your cars FSM
Page 727 /728
From googling...
194 is a higher wattage version of the 158.
158 about 3.3W
194 about 3.8W
Higher wattage = more current and more heat.
IMHO
If you can get the 158 that is what I would stick with.
I have melted lenses using higher wattage bulbs