I had some trouble finding the correct miniature incandescent light bulb to fit behind the Heating/AC (HVAC) control in my '97 4Runner. I did get the Napa Auto Parts LMP 37, which was slightly larger than the original bulb; but it fit into the connector in the HVAC control panel well, so far this bulb seems to fit better and is not going out on me.
Original incandescent bulb
Toyota OEM P/N: 90981-11014 (14V, 1.4W)
Other functional replacement options (Miniature Incandescent lamps)
Bulb type: T-1 3/4
1.) Napa Auto LMP 37 (14V, 1.4W)
Part Number: LMP 37
Product Line: NAPA Lamps
Attributes:
Bulb Base Type : Sub-Miniature Wedge (W2.1X4.9D)
https://www.napaonline.com/Catalog/CatalogItemDetail.aspx?A=LMW37_0275978038&An=0
2.) Sylvania 74LL (14V,1.4W) = base type W2.1x4.9d,
I have also posted on the Yotatech.com site
The little bulb behind the HVAC controls - YotaTech Forums
Original incandescent bulb
Toyota OEM P/N: 90981-11014 (14V, 1.4W)
Other functional replacement options (Miniature Incandescent lamps)
Bulb type: T-1 3/4
1.) Napa Auto LMP 37 (14V, 1.4W)
Part Number: LMP 37
Product Line: NAPA Lamps
Attributes:
Bulb Base Type : Sub-Miniature Wedge (W2.1X4.9D)
https://www.napaonline.com/Catalog/CatalogItemDetail.aspx?A=LMW37_0275978038&An=0
2.) Sylvania 74LL (14V,1.4W) = base type W2.1x4.9d,
I have also posted on the Yotatech.com site
The little bulb behind the HVAC controls - YotaTech Forums