The one in my Sightseer can be pried apart and the grain of wheat bulb cut out and replaced by soldering in a new one, but it was a royal pita and I wouldn't recommend it.
When another one burned out I got a small 12 LED panel light with a built in resistor, drilled a small hole next to the switch and installed it there. Looks like a factory installation and has lasted about 8 years so far.
Clay (WA5NMR), Lee (Wife), Katie & Kelli (cats) Salli (dog).
Fixed domicile after 1 year of snowbirding and eleven years Full Timing in a 2004 Winnebago Sightseer 35N, Workhorse chassis, Honda Accord toad