Replacement tailgates for various kinds of trucks can be found through websites like Weller Auto Parts, UNeedAPart and eBay's online auction house. The sites are searchable through various means by make, model and year, allowing buyers to find parts which match their vehicles and meet their needs for basic repairs.
eBay is an online auction site which provides a good marketplace for those looking for used or refurbished parts. Searching for used tailgates for various models of trucks will generate a list of related products, which can then be perused and explored through the descriptions on their landing pages.
UNeedAPart is a database of new and used parts searchable by make, model, year and other terms. Users can search by browsing or else enter the exact part they are looking for and then peruse matching results, enabling them to find a perfectly suited replacement for a damaged or worn out truck tailgate.
Weller Auto also sells new and used parts, and it has a similar search algorithm to UNeedAPart. Where it differs is in its focus on new parts and original manufacturer parts, a useful feature for buyers looking to preserve the look and feel of their truck even after seeking out replacement parts to keep aging at bay.