When it comes to fixing or repairing a vehicle there is certain level of knowledge that we don’t really have as an average person. You need to be able to understand and decide if the task at hand is possible for your or not before you get into it. If you get into it without the proper knowledge you could end up damaging your vehicle. For an example cleaning your vehicle, changing your tires and all is something that would be possible for you to manage on your own. But there will be certain things such as fixing certain parts of the vehicle for which you lack the knowledge to do properly.
A mechanic on the other hand who is qualified on the matter and has a great deal of knowledge on the matter would know to make sure that everything is done properly. That is to say you may know that using a PTO clutch in Singapore would be good for your car, but you wouldn’t really know how to remove the existing part and put in the new one properly. You mechanic would have done something similar on more occasions than you and would have the knowledge; skill and experience do it properly. Of course you too could learn over time but that would mean that you would get it wrong a lot of the first time that you try, which could be dangerous if you constantly drive that vehicle.
If you have a trustworthy mechanic he would also know the right place to get what is required. That is to say he will know the best brand to go with and all. As he knows the material well there is a lower chance of him getting duped as opposed to you getting duped by someone to buy an inferior product. For an example he would know the good brands such as Logan clutch better than you. They will also know where to get these products at the cheapest cost. When they look for the cheapest option it would be different from how you would have done it as they have access to a bigger network of shops than you with whom they already have a good rapport with.
Don’t just randomly pick a mechanic though. Ask around from friends and family for any recommendations that they could offer first. If they aren’t good at what they do it would be the same if you had done it yourself. So be very careful about whom you hire. Have a good screening process. If you do that you should be fine. Regardless of the slight hassle it is always better to have a professional to the job for you as they will do a quality job of it.