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  • 2 weeks later...

For the Transmission lights the bulbs can be replaced. You can buy the assembly if you want to but by the time you do the work to disassemble the instrument cluster its pretty easy and less expensive to replace just the bulb. The bulb is a "Miniature bulb wire terminal base" style, what is commonly called a wheat bulb. I found two bulbs that will work, 8640, and DW07. The 8640 is readily available from lamp suppliers (.55 ea.), the DW is no as common I bought it from an electronics supply site (.67 to 1.50 ea). It has the advantage of being rated for 15,000 avg hours of life, the 8640 is rated at 1,000. Some suppliers sell these lamps in qty of 10, some individually.

You do have more disassembly to replace the trans lamps compared to the rest of the lamps in the inst cluster, but that is the case if replacing the lamp assembly or just the lamp.

For those that are interested, the rest of the lamps in the instrument cluster are easy to replace, the larger bulbs are a glass wedge base p/n 194, there are several varieties of these, most subaru lamps have a blue sleeve, you can also buy blue lamps, much easier to deal with the p/n is 194B, this may vary with suppliers. You can also experiment with other lamps that are rated to last much longer, such as 194LL, 161, 161B, etc. These bulbs are installed in a plastic base usually brown in color

Some people like to experiment with different colors, there are lots of options. There are people that have experimented with LED lamps with mixed success these are lots of places selling replacement led lamps.

The smaller lamps are p/n 74, in addition there are a couple of odd ball lamps in the inst cluster that can be substituted with a 74. There are also long life alternatives to the 74, p/n 73 is a good choice and can be ordered in red and blue as well. The long life lamps generally are lower current so will be slightly less bright. These lamps are installed in a plastic base usually black in color. The odd ball lamp bases are usually blue or brown in color.

To remove a glass wedge lamp from its base  base take something like a small pick and gently pry the lamp from the side out of the base, work it out slowly from side to side it will pop out easily when you get used to it.

You can also buy aftermarket lamp assemblies for the 194, 74 and others, this is little sketchy as its not guaranteed to fit, and its cheaper to replace the lamps anyway.

Edited by 1197sts
correct lamp p/n, add some additional notes
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