LSx waterpump with Driver Side Connection

[dayj1]

Originally Posted by smartass12

I know this is kinda old thread but does this water pump outlet clear the stock 5.3 alternator bracket looks like it might hit?

The water outlet on the L99 pump does hit the alternator bracket on the part that holds the idler pulley. Most folks are using the L99 pump on a truck engine are switching to a car intake. So, they are relocating the idler anyway because it interferes with the throttle body.

Here's a picture that I stole off ls1tech that shows what I'm talking about. Note the relocated idler: