it's a bad headlight, the seal is broken on the lens.
To clean the inside headlight lens on a ford ranger just simply remove the cap and clean.
The answer to how to clean your headlight lens depends on how dirty your lens is. If it just has bug juice and road grime any good car soap will clean it, just be carefull not to scratch the plastic. However if your lens is really yellowed or the clear coat cracked then you will need kit designed to clean the lens.
If you're talking about the headlight, the "lens cover" is not a separate part, you need to replace the whole headlight assembly.
I think the lens cover has snaps along the top and sides of the lens cover. It also looks as if you would have to loosen the turn signal unit that sits beside each headlight. The headlight lens cover is tucked into a recess along the turn signal unit. It doesn't look as if you would need any tools to remove the old lens covers, but you may need a screwdriver to loosen or remove the turn signal unit next to the lens.
They make kits for that. See an autoparts store.
I assume you mean HEADLIGHT LENS.. .. there are 3 bolts on the back, remove, pull out headlight. Remove clips and broken lens. Replace gasket, lens and put on clips FRONT TO BACK so you don't chip the lens. Reinstall with 3 bolts on back.
Th ee headlight lens is not removable separately. The assembly is held in by screws on top, and clips on the rear.
Forget about the Toyota; Buy American.
There are a number of Headlight cleaning kits available, some work, some don't. Google Clean your headlight lens, and call or research the companies to find the best.
put the headlight in the oven at about 215 degrees for about 5 min then pull the lens off the housing, clean it then use some automotive glue and push the lens back in. look it up on YouTube very simple
Sell it!