2007 chevy 5.3 waterpump. comes with bolts, thermostat, and thermostat housing. 300 miles on it and clean as a whistle. I need an Ls1 waterpump, hardened 7.4 pushrods and springs good to .660 lift. Will trade for those items or $100 shipping included. does not include pulley. good deal as a new pump is $150 with no bolts or thermostat. Waterpump is MINT. I switched to an ls2 intake so i need a different waterpump. Also fits 4.8 and 6.0 as well.