Yes I've searched but so many are really old posts with no answer. I pulled my footwell bulb and it didn't match the 194 that has been stated previously. No visible numbers are on my old bulb. The base looks the same as 194 but bulb area itself is bigger on my old one. So did they downsize to the smaller 194? I'm not paying 8 bucks at the parts store for 2 peanut bulbs they were guessing at, so I am hoping somebody has the correct size so I can order online.

 

I looked in my 99 Service Manual and I could not find what bulb it would be. I too have a lamp for the footwell but there is no entry for that bulb.

Here's what is listed for the interior bulbs. Perhaps you could infer what is most likely the correct one from this list.
Ash Tray Lamp: 161
Cargo Lamp: 211-2
Dome Lamp: 562
Floor Console PRNDL Lamp: 194
Heater and A/C Controls Lamps: 37
Inst. Panel Storage Comp. Lamp: 194
Reading Lamps: 194
Rearview Mirror Lamps:12866
Sunshade Vanity Mirror Lamps: 37
Transfer Case Select Switch Lamps: PC74
Underhood Lamp: 93

 

Thanks for the list. Maybe I can pull a 194 from another location and try it. The bulb in my passenger footwell matches the one from drivers side, but there's not enough room to pull it out without taking the panel off below glove box. Wondering if they're supposed to be the smaller 194 and somebody put these in at some point. Doubtful since I've owned the Jimmy since 2006 when it only had 85,000 miles on it, lol, but not impossible 😁

 

Leaning more towards wrong bulbs in my footwell. The ones that matched the size at parts store were 921 and I think 926. These seem to be for taillights on some vehicles. Overkill for an interior courtesy light wouldn't you agree?

 

Yeah, the 194s seem to be the go-to interior illumination bulb.

 

I put LEDs in mine. Pretty much anything with a T10 wedge base will work. I used blue because my Blazer is blue, but you can get them in different colors, including white.

 

194 fit perfect with plenty of room to install easily. My old ones were definitely oversized. 👍

 

Thanks for the update and confirmation.

 

168 worked for me.