No 74#s are a wedge style bulb. They are used in the shifter light, glove box, the key ring.
The OEM bulbs come with the green silicone covers, which you can get for the LCD backlighting bulbs from autolumination.com. They are different though.
It's just easier for the normal person to get the bulbs from Toyota.
Here's their LED counterpart: 3mm for the buttons, 4mm for the LCD
https://www.superbrightleds.com/mor...ulb-high-power-instrument-panel-led/221/1003/
Thx. Are the differences in the bulbs evident when I get the LCD apart or will I need to know which of those two part numbers go where (buttons v. display)?