If you know the exact model number of you need, I don't see why not. If you need help figuring out which part you need, a physical store would be better to visit.
a good website to purchase online auto transmissions is automotix.com it has everything you can think of for transmissions and parts
Auto Zone online is a wonderful way to take care of all your auto needs from the comfort of your own home. Without the hassle and run around. I know they would help you find good automotive parts at online to purchase, for cheap.
Auto Parts Deal, would be a good place to purchase bumpers online. They lay out all of the bumpers that they have available. You can also see how the bumper looks like before adding it to your cart.
There is a site called International Auto which offers a range of auto parts for lots of different automobiles. This site would be a good place to visit to purchase foreign auto parts.
One can purchase parts for a Volkswagen Jetta at an auto yard or an auto shop. An auto yard would be a good way to get one cheap, as the part is used, but an auto shop would sell new parts at a higher price.
O'reilly is a good place and AutoZone is another good place to shop for replacement auto parts also, you could check with a good salvage yard if they have the right parts you need.
You can purchase used auto parts off the internet and sometimes at auto parts stores.The best and cheapest place to find used auto parts is at a good junk yard. A good junk yard will have every car and every part you could ever imagine you might have to take it off yourself or pay someone to do it but it is well worth it.
Some online shops that specialize in automobile parts are Ranker, Auto Parts Warehouse, Autos, Patriot Auto Carriers Best Parts Car Parts. Other good online sites that specialize in automobile parts are East West Auto Parts, Car Parts Discounts and PR Web.
www.Progressive.com give you good quotes. you can also purchase online.
There are many places where you can buy new car parts. One good online resource is Auto Parts Warehouse. There may be some good local places to buy new car parts. You can check you auto dealer for suggestions.
I have bought parts at Auto Parts 123 before and they have been great, really good prices and quality parts. I recommend Auto Parts Warehouse, they offer really discounted prices and free shipping.
There a very good online auto junk yards where lots of cheap parts can be purchased. Some of the best online auto junk yards are www.junkyarddog.com, www.rockfordautoparts.com and www.uneedapart.com.