Chuxter

Can I get replacement bulbs for my gauges on my 1970 Cutlass Supreme?

matt69olds

They are either 194 or 168 bulbs, any good parts store will stock them.

Vintage Chief

Matt's correct. FYI, if you own the 1970 CSM there's a page in the electrical section which lists all the bulbs/lamps sizes/part numbers for each application.

redoldsman

Replace then with LED bulbs and you dash lights will be much brighter.

VC455

Yes, LEDs give a much brighter outlook, and I went that route too. But be mindful that LEDs will not dim effectively unless you add resistance in the supply wire to the headlight control switch.

69 Hurst

I also installed LEDs in mine...the difference is day and night!

jaunty75

If you have just an owner's manual for the car, bulb specifications will be listed there.

joe_padavano

matt69olds

Dont use a LED bulb in the GEN socket, either the bulb won’t work in the event of a charging system issue, or the charging system won’t power up with the ignition on.

Chuxter

ThNks for the help. I've got the bulb figured out. Is there anywhere to get new sockets?

joe_padavano

You can buy LED bulbs that are not polarized. The real problem is that the factory alternator system requires the resistance of the filament in the incandescent bulb to trigger the voltage regulator.

joe_padavano

Type gm dash lamp sockets into Google

matt69olds

I did not know that.

joe_padavano

Chuxter

Related question. Mine is a 1970 cutlass and tge lens for the high beam indicator is gone. Can you get a replacement, can you use some type of cellophane or plastic or would it just be easier to get a colored bulb?