There are a couple of things to look out for. If you answer yes to the following three points, the bulbs will probably fit:
RUBBER DUST CAP? Does your vehicle’s light housing have a rubber dust cap at the rear of the light housing, through which the existing wire/connector runs? If so, then the LED replacement globes will probably fit. If your vehicle has a completely sealed light unit, with a hard plastic dust cap, chances are that the plastic dust cap will be in the way of heatsink at the back of the LED replacement bulb, and it will not fit.
SPRING CLIP? Is your halogen bulb kept in place with a Spring Clip? If so, then the LED replacement bulb will probably fit. If your vehicle uses a metal or plastic adapter to hold the halogen bulb in place, it will probably not be compatible with the LED Replacement Bulbs. The reason for this is that the LED Bulbs have a heat sink at the rear that will be in the way of the adapter.
SPACE BEHIND THE LIGHT UNIT? You need about 5 to 8cm directly behind the bulb, for the heat sink. It may be necessary to remove the battery (Hilux left hand side) to be able to fit the bulbs. You should be able to judge easily whether there is space or not. Most off-road and older vehicles have lots of space. Some of the newest vehicles, where everything is crammed into the tiniest of spaces, may not have enough space.