looking for a left-front fender for my truck

Recycle yard? unless your older like me they are still junk yards, and you can try E-bay.

Possibly a junkyard. If not, go to ur local automotive paint supplier. They have catalogs that they buy replacement parts from. l do not know what area u live in, otherwise l would tell u the distributors l work with. l would say a brand new after market fender will run u around 80 - 120.00 bucks. Getting a junkyard fender ( already painted the wrong color ), will run around 50 - 75 bucks.

l say go with the new replacement. You will only have to seal the replacement part before painting. Buying used, from a junkyard, u will have to cure any possible rust, then sand down the old paint, then prime--THEN paint. In the long run, the used part will cost u more in time, labor & MONEY.

Keystone Automotive