When a couple of mine went out in 2018 for my 2004 I bought the pack off Amazon and replaced all of them. I keep the good, old ones in case any of them burn out again but it's been 5 years since I replaced them and so far none have gone out.
If any bulb goes out I usually replace any others that are the same, like front or rear turn signal bulbs. Then I keep the good old one as a spare.
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