David H
USA RET
Underhood? I used the following which I purchased off Amazon.
https://www.amazon.com/gp/product/B0196G10CA/ref=oh_aui_search_asin_title?ie=UTF8&psc=1
Because they sit sideways in the lamp, I two two bulbs back to back to each other and installed them. This gives out twice the light output and covered the entire engine bay. They are a little tricky to get two of them on the lamp bulb holder but you can do it and they have worked flawlessly since installing them back in June 2018.
And for the reverse backup lights, I utilized the following on all three of my Rams.
https://www.amazon.com/gp/product/B077PQWQR2/ref=oh_aui_search_asin_title?ie=UTF8&psc=1
And for license plate lamps (there are two of them), I utilized the following also on all three of my Rams.
https://www.amazon.com/gp/product/B076HNCT8H/ref=oh_aui_search_asin_title?ie=UTF8&psc=1
Wondering if that under hood light is the same replacement for the interior rear dome light?