Having spent hours and struggling to replace the halogen dipped and main beam headlights on my Ford Ranger Wildtrack, it was a refreshing change to find replacing the side lights with LED bulbs to be so easy. The bulbs themselves are W5W or T10 and are available for a pittance on Amazon or Ebay, the ones I used are from the States and manufactured by Auxbeam but others are available.
The video shows how easy they are to replace but the best thing is the brighter, white light that they give off, they are so much more visible to oncoming traffic when you are on the road during the day.
UK:
US: