I'm not sure who made the original Toyota van fuel pump, but I suspect it was Denso. With most Toyota parts from that era, if you buy Denso you will get exactly the same thing you'd get if your purchased from Toyota (except you won't get the red box that says Toyota all over it). The other thing you won't usually get is an over inflated price.

Even if Denso wasn't the OEM manufacturer their quality usually rivals whatever Toyota used, so I'd feel comfortable using Denso. I would however avoid most other brands. Tim